Date   

Possible inter-satellite collision on Friday (2PM NZ Time)

Edwin Rod
 

Hi Folks

Twitter seems to be down, but to the best of my knowledge this is going to be 2pm today!

Links and info below

Cheers Edwin







We likely won't know anything about the possible satellite collision tonight until the Chinese CZ-4C booster passes over New Zealand. That's 5000 km or roughly 11 minutes after the (possible) impact, say 9:07 PM EDT. Maybe we'll hear something by 9:10 or so.





Inline image





Beauty in the Stars – Steve C

Edwin Rod
 

Beauty in the Stars – Steve C

I have known Steve for many years and he sure is one amazing photographer of deep sky objects. In fact the images looking amazing on the projector in the darkened room, I feel people will be looking forward to exploring the Magellanic clouds with his images in the near future.

Post Covid Lockdown it was nice to see Steve in person too.

WAS Meeting, Space Place – Carter Observatory

Samsung A8+

07_10_2020




September 2020 News and research items

Edwin Rod
 

 
Hi everyone

Please find all the usual, starcharts and newsletters attached along with some research papers too. With the news about Phosphine in the clouds of Venus I have added in some good ones on Venus for you to have a look at and read. Again Andrew has provide us with some great updates and there are lots of links to have a look at. Due to not feeling to well over the weekend I haven’t been able to do much of a write up on Venus myself this month but Paul Gilsters article provides a great overview and detail as always.

Anyway enjoy

Thanks Edwin


Research papers


On The Biomass Required To Produce Phosphine Detected In The Cloud Decks Of Venus

Authors: Manasvi Lingam, Abraham Loeb
https://arxiv.org/abs/2009.07835

Feasibility Analysis and Preliminary Design of ChipSat Entry for In-situ Investigation of the Atmosphere of Venus
https://arxiv.org/abs/2009.08396

Transfer of Life Between Earth and Venus with Planet-Grazing Asteroids
https://arxiv.org/abs/2009.09512



Seeing above the Clouds with High Resolution Spectroscopy
https://arxiv.org/abs/2008.11464

Estimating the Ultraviolet Emission of M dwarfs with Exoplanets from Ca II and Ha
https://arxiv.org/abs/2009.07869

Water Vapor and Clouds on the Habitable-Zone Sub-Neptune Exoplanet K2-18b
https://arxiv.org/abs/1909.04642

Callisto
https://arxiv.org/abs/2009.05002

Accretion disk's magnetic field controlled the composition of the terrestrial planets
https://arxiv.org/abs/2009.04311

Stellar Flares versus Luminosity XUV-induced Atmospheric Escape and Planetary Habitability
https://arxiv.org/abs/2009.04310

A kilometer-scale asteroid inside Venus's orbit
https://arxiv.org/abs/2009.04125

Direct characterization of young giant exoplanets at high spectral resolution by coupling SPHERE and CRIRES
https://arxiv.org/abs/2009.01841


How massive can a black hole be? This study asked that question and takes a look at how many there could be.

Black holes – Do they grow stupendously large?
https://astrobites.org/2020/09/05/stupendously-large-black-holes/

Constraints on Stupendously Large Black Holes
https://arxiv.org/abs/2008.08077


Direct Imaging Discovery of a Young Brown Dwarf Companion to an A2V Star
https://arxiv.org/abs/2009.08537

The High-Energy Radiation Environment Around a 10 Gyr M Dwarf
https://arxiv.org/abs/2009.01259

Utilizing a Database of Simulated Geometric Albedo Spectra for Photometric Characterization of Rocky Exoplanet Atmospheres
https://arxiv.org/abs/2009.01330

Cryogenic Cometary Sample Return
https://arxiv.org/abs/2009.00101

Habitable Zones in Binary Star Systems
https://arxiv.org/abs/2009.00144

The Equatorial Jet Speed on Tidally Locked Planets
https://arxiv.org/abs/2009.00358

A Recipe for Geophysical Exploration of Enceladus
https://arxiv.org/abs/2008.02887

The effects of granulation and supergranulation on Earth-mass planet detectability
https://arxiv.org/abs/2008.11952

Lithologic Controls on Silicate Weathering Regimes of Temperate Planets
https://arxiv.org/abs/2008.11620

Evolution of the Earth's Polar Outflow From Mid-Archean to Present
https://arxiv.org/abs/2008.10337

The impact of the planetesimal surface density in the terrestrial planet zone
https://arxiv.org/abs/2008.10432


Alien skies
https://www.drewexmachina.com/2020/08/28/alien-skies-the-view-from-alpha-centauri/


----------------------------------------------------------------------
Interesting News items


The British Astronomical Association (BAA) did a webinar about Comet NEOWISE a few days ago. It can be seen on YouTube at -

https://www.youtube.com/watch?v=G6xlpvxJTYQ



Camera retailer who swindled more than $100,000 from customers jailed
https://www.stuff.co.nz/timaru-herald/news/122804586/camera-retailer-who-swindled-more-than-100000-from-customers-jailed


Gobekli Tepe: The world’s first astronomical observatory?
https://astronomy.com/news/2020/09/gobekli-tepe-the-worlds-first-astronomical-observatory


Dark sky reserve moving forward
https://times-age.co.nz/dark-sky-reserve-moving-forward

Dark Sky Maps
https://blue-marble.de/nightlights/2019

New Zealand Tasmanian tiger pelt provides DNA of extinct marsupial
https://www.rnz.co.nz/news/national/424807/new-zealand-tasmanian-tiger-pelt-provides-dna-of-extinct-marsupial


A Supercomputer Analyzed Covid-19 — and an Interesting New Theory Has Emerged
https://elemental.medium.com/a-supercomputer-analyzed-covid-19-and-an-interesting-new-theory-has-emerged-31cb8eba9d63

A mechanistic model and therapeutic interventions for COVID-19 involving a RAS-mediated bradykinin storm
https://elifesciences.org/articles/59177

Intensive Care Unit Admission and Mortality Among Patients Hospitalized for COVID-19
https://www.sciencedirect.com/science/article/pii/S0960076020302764



August 2020 News skycharts and research papers

Edwin Rod
 

Hi everyone

 

Please find all the usual newsletters, starcharts and papers attached.

Its Covid level level 2 for us in Wellington and NZ until Sunday night (29th Aug) and its level 3 for the Auckland region, I have one or two links on Covid for those who might be interesting, in the attached notepad file.

There sure is no shortage of interesting articles this month and a lot to get through. Did the Sun form with another star? A binary companion? Interesting research suggests it might have, with intriguing implications for the proposed outer ice giant Planet. Ganymede has always been a Moon of interest for me and this month there is a look at a big impact basin on the moon and the tidal heating of Jupiter’s Moons.  There is also an interesting look at a Star that is just big enough to be on the main sequence. How many habitable planets can you fit around a Star? Its an interesting question that is answered this month. There is a look at a very high density Neptune planet and a look at the Trappist planets too.

 

Andrew from the UK has also summed up nicely some top stories from the month too.

 

Cheers Edwin

 

 

Research papers


Surface and oceanic habitability of Trappist-1 planets under the impact of flares
https://arxiv.org/abs/2008.09147

Magma ocean evolution of the TRAPPIST-1 planets
https://arxiv.org/abs/2008.09599

Potential For Liquid Water Biochemistry Deep Under The Surfaces Of The Moon, Mars And Beyond
https://arxiv.org/abs/2008.08709

Isotopically distinct terrestrial planets via local accretion
https://arxiv.org/abs/2008.08850

High-resolution survey for planetary companions to young stars in the Taurus Molecular Cloud
https://arxiv.org/abs/2008.06065

Quantifying the information impact of future searches for exoplanetary biosignatures
https://arxiv.org/abs/2008.07586

Detection of ten new planets
https://arxiv.org/abs/2008.07998

Missions to and Sample Returns from Nearby Interstellar Objects
https://arxiv.org/abs/2008.07647

An eclipsing M-dwarf close to the hydrogen burning limit from NGTS
https://arxiv.org/abs/2008.07354

Powering the Galilean Satellites with Moon-Moon Tides
https://arxiv.org/abs/2008.02825

The Science Case for a Titan Flagship-class Orbiter with Probes
https://arxiv.org/abs/2008.05680

Optical Transmission Spectroscopy of the Terrestrial Exoplanet LHS 3844b
https://arxiv.org/abs/2008.05444

Effects of Flux Variation on the Surface Temperatures of Earth-like Circumbinary Planets
https://arxiv.org/abs/2008.04992

Could the Migration of Jupiter have Accelerated the Atmospheric Evolution of Venus
https://arxiv.org/abs/2008.04927

Differing Enceladean ocean circulation and ice shell geometries driven by tidal heating
https://arxiv.org/abs/2008.03764

Non-detection of O2/O3 informs frequency of Earth-like planets with LUVOIR but not HabEx
https://arxiv.org/abs/2008.03952

Water worlds in N-body simulations with fragmentation in systems without gaseous giants
https://arxiv.org/abs/2008.03594

Monte Carlo estimation of the probability of causal contacts between communicating civilisations
https://arxiv.org/abs/2007.03597

A Long-Lived Sharp Disruption on the Lower Clouds of Venus
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2020GL087221

The Habitable-zone Planet Finder Reveals A High Mass and a Low Obliquity for the Young Neptune K2-25b
https://arxiv.org/abs/2007.12766

https://www.centauri-dreams.org/2020/08/07/a-dense-sub-neptune-challenges-formation-theories/

An astrometric planetary companion candidate to the M9 Dwarf TVLM 513-46546
https://arxiv.org/abs/2008.01595

https://www.centauri-dreams.org/2020/08/05/saturn-class-exoplanet-is-a-win-for-astrometry/
http://spaceref.com/extrasolar-planets/radio-telescopes-find-extrasolar-planet-around-main-sequence-star.html


The Habitability of the Galactic Bulge
https://arxiv.org/abs/2008.01419

Stellar Pulsation and the Production of Dust and Molecules in Galactic Carbon Stars
https://arxiv.org/abs/1910.11401

Prebiotic precursors of the primordial RNA world in space
https://arxiv.org/abs/2008.00228

Exoplanets Sciences with Nulling Interferometers and a Single-Mode Fiber-Fed Spectrograph
https://arxiv.org/abs/2007.15529

Asteroid impact, Schumann resonances and the end of dinosaurs
https://arxiv.org/abs/2007.15463

Observing Earth from the Moon to prepare for detecting life on Earth-like exoplanets
https://arxiv.org/abs/2007.16078

Dynamical Packing in the Habitable Zone
https://arxiv.org/abs/2006.13962

The stability of tightly-packed, evenly-spaced systems of Earth-mass planets orbiting a Sun-like star
https://arxiv.org/abs/1703.08426

https://www.centauri-dreams.org/2020/08/04/a-tight-fit-planets-in-the-habitable-zone/

Oceanic and atmospheric methane cycling in the cGENIE Earth system model
https://arxiv.org/abs/2007.15053

Colors of an Earth-like exoplanet
https://arxiv.org/abs/2007.15624

investigating the biological potential of galactic cosmic ray-induced radiation-driven chemical disequilibrium in the Martian subsurface
https://www.nature.com/articles/s41598-020-68715-7

Near-parabolic comets observed in 2006-2010
https://arxiv.org/abs/1308.0563

No evidence for interstellar planetesimals trapped in the Solar System
https://arxiv.org/abs/2006.04534

The Science Case for Spacecraft Exploration of the Uranian Satellites
https://arxiv.org/abs/2007.07284

Can Volcanism Build Hydrogen-Rich Early Atmospheres
https://arxiv.org/abs/2007.12037



Using a real-world network to model localized COVID-19 control strategies
https://www.nature.com/articles/s41591-020-1036-8


Deforestation and world population sustainability: a quantitative analysis
https://www.nature.com/articles/s41598-020-63657-6

https://www.vice.com/en_us/article/akzn5a/theoretical-physicists-say-90-chance-of-societal-collapse-within-several-decades


----------------------------------------------------------------------
Interesting News items


New Zealand Astrophotography Weekend 2020
http://www.horoastronomy.org.nz/upcoming-events/astrophotography-weekend


'Shallow Lightning' and 'Mushballs' Reveal Ammonia to NASA's Juno Scientists
https://www.jpl.nasa.gov/news/news.php?feature=7721


Vincent Van Gogh’s art comes alive and larger than life on Wellington waterfront
https://www.stuff.co.nz/entertainment/122282691/vincent-van-goghs-art-comes-alive-and-larger-than-life-on-wellington-waterfront

The People’s Space Odyssey: 2010: The Year We Make Contact
https://www.centauri-dreams.org/2020/07/31/the-peoples-space-odyssey-2010-the-year-we-make-contact/


The scramble for space at Earth’s outer limits
https://www.rnz.co.nz/news/world/423083/the-scramble-for-space-at-earth-s-outer-limits

The Unraveling of America   
https://www.rollingstone.com/politics/political-commentary/covid-19-end-of-american-era-wade-davis-1038206






Vincent Van Gogh’s art comes alive and larger than life on Wellington waterfront

Edwin Rod
 


July 2020 Starcharts News and research

Edwin Rod
 

Hi Everyone

 

Please find this month’s newsletters and starcharts attached  

Another month with life here in New Zealand returning to normal post lockdown.

However things around the world and close to home in Melbourne/Victoria the situation isn’t looking good.

https://www.rnz.co.nz/news/world/421996/record-rise-in-world-s-covid-19-cases

 

There has been another interesting month of research and news to read, a special thanks to Andrew in the UK for his updates on most of the months top interesting news items I’ve included them in usual attachment. There is an interesting look at rocks in Australia and how this can help research similar rock types on Mars this would be an interesting place to do geology. There is also a look at Tides on Titan another look at Europa. As always if you’re interested in exo planets there are a few to read too.

It sure has been a busy month.

Cheers Edwin





Research papers


Relaying Swarms of Low-Mass Interstellar Probes
https://arxiv.org/abs/2007.11554

Effect of Sea-ice Drift on the Onset of Snowball Climate on Rapidly Rotating Aqua-planets
https://arxiv.org/abs/2007.11179

Regional study of Europa's photometry
https://arxiv.org/abs/2007.11445

A playable package for modeling interstellar chemistry
https://arxiv.org/abs/2007.11294

Estimating survival probability using the terrestrial extinction history for the search for extraterrestrial life
https://arxiv.org/abs/2007.09904

Ancient Australian Rocks and the Search for Life on Mars
https://arxiv.org/abs/2007.06656

A pole-to-equator ocean overturning circulation on Enceladus
https://arxiv.org/abs/2007.06173

The role of clouds on the depletion of methane and water dominance
https://arxiv.org/abs/2007.06562

Predicting the long-term stability of compact multiplanet systems
https://arxiv.org/abs/2007.06521

Habitability Models for Planetary Sciences
https://arxiv.org/abs/2007.05491

Water transport throughout the TRAPPIST-1 system
https://arxiv.org/abs/2007.05366

The Dynamic Proto-atmospheres around Low-Mass Planets with Eccentric Orbits
https://arxiv.org/abs/2007.04398

Atmospheric Erosion by Giant Impacts onto Terrestrial Planets A Scaling Law
https://arxiv.org/abs/2007.04321

Unexpected Circular Radio Objects at High Galactic Latitude
https://arxiv.org/abs/2006.14805

A review of possible planetary atmospheres in the TRAPPIST-1 system
https://arxiv.org/abs/2007.03334

Terrestrial Planets Comparative Climatology (TPCC) mission concept
https://arxiv.org/abs/2007.03049

Worlds without Moons Exomoon Constraints for Compact Planetary Systems
https://iopscience.iop.org/article/10.3847/2041-8213/aa6bf2

Human Assisted Science at Venus Venus Exploration in the New Human Spaceflight Age
https://arxiv.org/abs/2006.04900

Tidal Currents Detected in Kraken Mare Straits from Cassini VIMS Sun Glitter Observations
https://arxiv.org/abs/2007.00804

The Venus Life Equation
https://arxiv.org/abs/2007.00105

planetary atmospheres and their link to the stellar environment
https://arxiv.org/abs/2006.16650

Dyson Spheres
https://arxiv.org/abs/2006.16734

JWST Transit Spectra for Cloudy Exoplanets
https://arxiv.org/abs/2007.00109

Ocean Worlds Exploration and the Search for Life
https://arxiv.org/abs/2006.15803




----------------------------------------------------------------------
Interesting News items






Native South Americans were early inhabitants of Polynesia
https://www.nature.com/articles/d41586-020-01983-5

Did ancient Americans settle in Polynesia? The evidence doesn’t stack up
https://theconversation.com/did-ancient-americans-settle-in-polynesia-the-evidence-doesnt-stack-up-142383

Wai-iti stargazing site receives international Dark Sky Park recognition
https://www.stuff.co.nz/travel/back-your-backyard/122070233/waiiti-stargazing-site-receives-international-dark-sky-park-recognition

Oumuamua
https://spaceq.ca/oumuamua-the-mysterious-visitor-to-our-solar-system/

Venus
https://www.jpl.nasa.gov/news/news.php?feature=7689



This months starcharts along with the News and research

Edwin Rod
 

Hi everyone

Another busy month, some interesting ones on seti this month, along with neptune sized planets. There is also a detailed look at Europa too.


Research papers




Risks for Life on Proxima b from Sterilizing Asteroid Impacts
https://arxiv.org/abs/2006.12503

The Breakthrough Listen Exotica Catalog
https://arxiv.org/abs/2006.11304

An eccentric Neptune-mass planet near the inner edge of the BD-11 4672 habitable zone
https://arxiv.org/abs/2006.14393

Spin-orbit alignment of the ß Pictoris planetary system
https://arxiv.org/abs/2006.10784

A Mini-Neptune and a Venus-Zone Planet in the Radius Valley Orbiting the Nearby M2-dwarf TOI-1266
https://arxiv.org/abs/2006.11180

Inferring the population properties of binary black holesfrom unresolved gravitational waves
https://arxiv.org/abs/2004.09700

Retrieving scattering clouds and disequilibrium chemistry in the atmosphere of HR 8799e
https://arxiv.org/abs/2006.09394

Neptune-Size Exoplanet HD 106315 c
https://arxiv.org/abs/2006.07444

The Astrobiological Copernican Weak and Strong Limits for Extraterrestrial Intelligent Life
https://arxiv.org/abs/2004.03968

Lessons learned from (and since) the Voyager 2 flybys of Uranus and Neptune
https://arxiv.org/abs/2006.08340

Planet formation and Volatile Delivery
https://arxiv.org/abs/2006.07127

Astrochemistry During the Formation of Stars
https://arxiv.org/abs/2006.07071

transit candidate in the habitable zone of Kepler-160
https://arxiv.org/abs/2006.02123

Photometrically-corrected global infrared mosaics of Enceladus
https://arxiv.org/abs/2006.00146

The Effect of Substellar Continent Size on Ocean Dynamics of Proxima Centauri b
https://arxiv.org/abs/2005.14185

Implications of different stellar spectra for the climate of tidally-locked Earth-like exoplanets
https://arxiv.org/abs/2005.13002

Atmospheric Escape From TOI-700 d Venus vs Earth Analogs
https://arxiv.org/abs/2005.13190

Aquatic Biospheres On Temperate Planets Around Sun-like Stars And M-dwarfs
https://arxiv.org/abs/2005.14387

Qualitative classification of extraterrestrial civilizations
https://arxiv.org/abs/2005.13221

A Long-lived Sharp Disruption on the Lower Clouds of Venus
https://arxiv.org/abs/2005.13540

Possible Interstellar meteoroids detected by the Canadian Meteor Orbit Radar
https://arxiv.org/abs/2005.10896

Evidence that 1I/2017 U1 (`Oumuamua) was composed of molecular hydrogen ice
https://arxiv.org/abs/2005.12932

https://www.wired.com/story/oumuamua-might-be-a-giant-interstellar-hydrogen-iceberg/

Revisiting Proxima with ESPRESSO
https://arxiv.org/abs/2005.12114v1

High mantle seismic P-wave speeds as a signature for gravitational spreading of superplumes
https://advances.sciencemag.org/content/6/22/eaba7118/tab-pdf
https://www.stuff.co.nz/science/300022439/new-zealand-sits-on-top-of-the-remains-of-a-giant-ancient-volcanic-plume

Exomoon habitability constrained by illumination and tidal heating
https://arxiv.org/abs/1209.5323

On-sky verification of Fast and Furious focal-plane wavefrontsensing
https://arxiv.org/abs/2005.12097


----------------------------------------------------------------------
Interesting News items

Super Earths
http://spaceref.com/exoplanets/super-earths-discovered-orbiting-nearby-red-dwarf-gliese-887.html

Nabta Playa
https://astronomy.com/news/2020/06/nabta-playa-the-worlds-first-astronomical-site-was-built-in-africa-and-is-older-than-stonehenge

LIfe in the Galaxy
http://astrobiology.com/2020/06/life-in-the-galaxy-is-this-as-good-as-it-gets.html

Interesting look at the night sky
https://telescopius.com


Why astronomers now doubt there is an undiscovered 9th planet in our solar system
https://theconversation.com/why-astronomers-now-doubt-there-is-an-undiscovered-9th-planet-in-our-solar-system-127598


Official Attempt for Measuring light pollution

Hi Everyone, RASNZ and the Dark Sky Section of RASNZ in NZ have this awesome project where we can measure light pollution.
On Sunday, even if the sky is covered. Hope you can make it. Every one of us can make the difference. Thank you

Hari

On Sunday 21 June 2020, On the darkest day of the year.... join us to measure light pollution even if it's raining.
Have you heard about light pollution?
Don't like that light shining in your bedroom window? Want to do something about it?
Join us to preserve the night by being part of a Guinness World Records ™ Official Attempt for Measuring light pollution!

https://worldrecordlight.thinkific.com/pages/coming_soon



Official Attempt for Measuring light pollution

Edwin Rod
 

Official Attempt for Measuring light pollution

Hi Everyone, RASNZ and the Dark Sky Section of RASNZ in NZ have this awesome project where we can measure light pollution.
On Sunday, even if the sky is covered. Hope you can make it. Every one of us can make the difference. Thank you

Hari

On Sunday 21 June 2020, On the darkest day of the year.... join us to measure light pollution even if it's raining.
Have you heard about light pollution?
Don't like that light shining in your bedroom window? Want to do something about it?
Join us to preserve the night by being part of a Guinness World Records ™ Official Attempt for Measuring light pollution!











This is very interesting reading on the proposed Planet 9

Edwin Rod
 


May 2020 News skycharts and research papers

Edwin Rod
 

Hi everyone

 

Another busy month and here in New Zealand things seem to be getting back to life as normal and were looking at moving down to level 1 next month.

Lots of interesting research this month, from a looking at the outer solar system small objects to research on the proposed “Planet 9”. Again there is some interesting ones looking at exo planets and solar system dynamics.

Anyway I’ll leave you all to read the ones that interest you most

Cheers Edwin




Research papers



Tidal evolution of exoplanetary systems hosting Potentially Habitable Exoplanets
https://arxiv.org/abs/2005.10318

The Effect of Seafloor Weathering on Planetary Habitability
https://arxiv.org/abs/2005.09092

The large Trans-Neptunian Object 2002 TC302
https://arxiv.org/abs/2005.08881

instantaneous incoherent speckle grid for high-precision astrometry and photometry
https://arxiv.org/abs/2005.08751

Stellar Variability in a Forming Massive Star Cluster
https://arxiv.org/abs/2005.08198

The Discovery of the Long-Period, Eccentric Planet Kepler-88 d
https://arxiv.org/abs/1909.02427

Constraining the final merger of contact binary(486958) Arrokoth
https://arxiv.org/abs/2005.06525

Two examples of how to use observations of terrestrial planets
https://arxiv.org/abs/2005.06512

Earths in Other Solar Systems N-body simulations
https://arxiv.org/abs/2005.04233

World ships Feasibility and Rationale
https://arxiv.org/abs/2005.04100

Further constraining the Planet Nine hypothesis with numerical simulations
https://arxiv.org/abs/2005.05326

Dark Energy Survey's extreme trans-Neptunian objects
https://arxiv.org/abs/2003.08901

The Brute-Force Search for Planet Nine
https://arxiv.org/abs/2004.14980

Biosignature Surveys to Exoplanet Yields and Beyond
https://arxiv.org/abs/2005.04005

Snow-lines can be thermally unstable
https://arxiv.org/abs/2005.03665

Wide band, tunable gamma-ray lenses
https://arxiv.org/abs/2005.03894

The occurrence rate of exoplanets orbiting ultracool dwarfs as probed by K2
https://arxiv.org/abs/2005.01440

Testing Earth-like atmospheric evolution on exo-Earths
https://arxiv.org/abs/2005.01587

Laboratory studies on the viability of life in H2-dominated exoplanet atmospheres
https://arxiv.org/abs/2005.01668

Thermodynamic and Energetic Limits on Continental Silicate Weathering
https://arxiv.org/abs/2004.14058

Switching LPS to LED Streetlight May Dramatically Reduce Activity and Foraging of Bats
https://www.mdpi.com/1424-2818/12/4/165

Dynamical effects on the habitable zone for Earth-like exomoons
https://academic.oup.com/mnras/article/432/4/2994/1001104

constraints-on-the-habitability-of-extrasolar-moons
https://www.cambridge.org/core/journals/proceedings-of-the-international-astronomical-union/article/constraints-on-the-habitability-of-extrasolar-moons/09A95F86FB2CEBD7074F52FD45EF7B96


----------------------------------------------------------------------
Interesting News items


On Inspiration, Astrobiology, and the Origins of Life in the Universe: An Interview with Haritina Mogosanu
https://www.buzzsprout.com/678467/3721901

Dock at the ISS
https://iss-sim.spacex.com/

An Alternative to Planet 9: Maybe There Is Nothing Special
https://aasnova.org/2020/05/05/an-alternative-to-planet-9-maybe-there-is-nothing-special/


Zealandia
https://www.rnz.co.nz/national/programmes/ourchangingworld/audio/2018745356/probing-the-hidden-continent-of-zealandia

Zealandia: Earth’s Hidden Continent
https://www.geosociety.org/gsatoday/archive/27/3/article/GSATG321A.1.htm




Strangest of All Anthology of Astrobiological SF

Edwin Rod
 

Hi All

This Sci Fi E-book caught my attention today and looks very interesting


IntroductionJulie NovákováIs anyone out there?This is an age-old question we are yet to answer.Speculation on alien life is nothing new. The Greekatomists considered the plurality of worlds and “otherearths inhabited by different tribes of men and breeds ofbeasts”1; 16th century Italian priest and occultist GiordanoBruno speculated about “infinite multitude of worlds”2; thefamous philosopher Immanuel Kant wrote in his Critique ofPure Reason that he would bet everything that at least someof the known planets were inhabited.Nor is science fiction working with the idea of lifeelsewhere or not quite as-we-know-it anything new. One ofthe first such works was penned by the great JohannesKepler himself and published posthumously. The novelSomnium tells a story of a boy, who’d studied astronomywith Tycho Brahe, and the boy’s witch mother, who hadlearned from a demon that the Moon (“Levania”) isinhabited. They both undertake the shocking journey to visitit, and there is an abundance of description of both thecreatures of the Moon and – in this case quite accurately, inaccord with science of that time – the Earth seen from there.The 17th and 18th century saw an increase of stories oflife elsewhere in space, and after the birth of modern science




Cheers Edwin




A few photos of the Supermoonrise

Edwin Rod
 

Snow on Mt Alpha 1363M in the southern Tararua range.

The one cold snap brought snow down to around 1000m in altitude here,

Nikon CoolPix P900
CMOS Sensor
13_05_2020
Target - Subject
Mt Alpha
Location
Johnsonville, Wellington NZ
http://en.wikipedia.org/wiki/Johnsonville,_New_Zealand
Altitude 220M
Lens
Nikkor 83X Wide Optical Zoom
File Name
SuperMoon_P900_13_05_2020


Moonrise

A stunning Moonrise over the Rimutaka ranges

Nikon CoolPix P900
CMOS Sensor
07_05_2020
Target - Subject
Moon rise
Location
Johnsonville, Wellington NZ
http://en.wikipedia.org/wiki/Johnsonville,_New_Zealand
Lens
Nikkor 83X Wide Optical Zoom
File Name
SuperMoon_P900_13_05_2020



The Dark Side of Light Published by Damien McNamara

Edwin Rod
 

The Dark Side of Light
Published by Damien McNamara

Hi everyone here is a interesting book Damien has written and offered to share with us to read.

Being a similar age to Damien, I too can remember seeing Halley's comet and following the Voyager missions as a kid during the 80s, then Shomaker hitting Jupiter while I was a high school/College in the 90s.

It looks like a lot of work and an interesting read.

Cheers Edwin



Aprils newsletters and Star Charts

Edwin Rod
 

Hi everyone

Please find all the usual newsletters and star charts attached, lots to have a look at this month and the new Kepler planet is one to watch as an interesting discovery. Again here is no shortage of interesting research this month too.

 

Last month’s email sure feels a long time ago, and how life along with the economy has changed, NZ is moving to alert level 3 from tomorrow (28/04/2020), after 33 Days in complete lockdown, we are slightly easing restrictions. It has been a tough time and the news last night of losing one of my long time astronomy friends was hard too, It was health related and not due to Covid-19.

Take care everyone




Research papers

An interstellar origin for high-inclination Centaurs
https://arxiv.org/abs/2004.10510

The multi-planet system TOI-421 A warm Neptune
https://arxiv.org/abs/2004.10095

Searching for the near infrared counterpart of Proxima c
https://arxiv.org/abs/2004.06685

Strong Near-Infrared Spectral Variability of the Young Cloudy L Dwarf Companion VHS J1256-1257 b
https://arxiv.org/abs/2004.05170

Habitability is a continuous property of nature
https://arxiv.org/abs/2004.06470

The Astrobiological Copernican Weak and Strong Limits for Extraterrestrial Intelligent Life
https://arxiv.org/abs/2004.03968

Radar evidence of subglacial liquid water on Mars
https://arxiv.org/abs/2004.04587

Detectability of Life Using Oxygen on Pelagic Planets and Water Worlds
https://arxiv.org/abs/2004.03631

Global Mapping of the Surface Composition on an Exo-Earth using Color Variability
https://arxiv.org/abs/2004.03931

an astrometric calibration field for high-contrast imagers in Baade's Window
https://arxiv.org/abs/2004.02923

Atmospheric convection plays a key role in the climate of tidally-locked terrestrial exoplanets
https://arxiv.org/abs/2004.03007

The effect of high nitrogen pressures on the habitable zone and an appraisal of greenhouse states
https://arxiv.org/abs/2004.00229

Outstanding Challenges of Exoplanet Atmospheric Retrievals
https://arxiv.org/abs/2003.14311

Focal Plane Wavefront Sensing with the FAST TGV Coronagraph
https://arxiv.org/abs/2003.13692

Salty Oceans in Low Mass Habitable Planets and Global Climate Evolution
https://arxiv.org/abs/2003.13107

Stellar Driven Evolution of Hydrogen-Dominated Atmospheres
https://arxiv.org/abs/2003.13412

A kinematically hot population of young stars in the solar neighbourhood
https://arxiv.org/abs/2003.13369

The Habitability of Large Elliptical Galaxies
https://arxiv.org/abs/2003.13643

Uranian Satellite Formation by Evolution of a Water Vapor Disk
https://arxiv.org/abs/2003.13582

From Super-Earths to Mini-Neptunes
https://arxiv.org/abs/2003.13348

Earth-size planet formation in the habitable zone of circumbinary stars
https://arxiv.org/abs/2003.11682

Habitability of polar regions in tidally locked extrasolar planet near the M-Dwarf stars
https://arxiv.org/abs/2003.11732

Explaining the Cold Temperatures Retrieved from Transmission Spectra of Exoplanet Atmospheres
https://arxiv.org/abs/2003.11548

Atmospheric evolution from noble gas and Nitrogen on Earth Mars & Venus
https://arxiv.org/abs/2003.11431

An information theoretic framework for classifying exoplanetary system architectures
https://arxiv.org/abs/2003.11098

Delivery of water and volatiles to the terrestrial planets and the Moon
https://arxiv.org/abs/2003.09982



Human wealth evolution trends and fluctuations
https://arxiv.org/abs/2003.11502





March Newsletters and Starcharts

Edwin Rod
 

Hi Everyone

Please find this month’s newsletters and Starcharts attached. There is some interesting papers looking at Icy moons, and even Mercury.

Current events this week have been moving fast, and have taken away from doing any more of a detailed write up. I have added in a few links and papers about Covid-19 along with the usual astronomy research and news items.

New Zealand is an hour away from a Covid-19 lockdown for 4 weeks maybe longer? Were ready to self isolate here and take care everyone.

 

Cheers Edwin   




Research papers

The subsurface habitability of small icy exomoons
https://arxiv.org/abs/2003.09231

Repeated Impact-Driven Plume Formation On Enceladus Over Myr Timescales
https://arxiv.org/abs/2003.07866

The pivot energy of Solar Energetic Particles Affecting the Martian surface radiation environment
https://arxiv.org/abs/2003.06603

Europa's Hemispheric Color Dichotomy as a Constraint on Non-synchronous Rotation
https://arxiv.org/abs/2003.06680

The Low Earth Orbit Satellite Population and Impacts of the SpaceX Starlink Constellation
https://arxiv.org/abs/2003.07446

The chaotic terrains of Mercury
https://www.nature.com/articles/s41598-020-59885-5
https://www.centauri-dreams.org/2020/03/17/an-unusual-look-at-mercury/

Earths polar night boundary layer as an analogue
https://arxiv.org/abs/2003.06306

Evolutionary history, potential intermediate animal host, andcross-species analyses of SARS-CoV-2
https://onlinelibrary.wiley.com/doi/epdf/10.1002/jmv.25731

No credible evidence supporting claims of the laboratory engineering of SARS-CoV-2
https://www.tandfonline.com/doi/full/10.1080/22221751.2020.1733440

Venusian Habitable Climate Scenarios
https://arxiv.org/abs/2003.05704

Atmospheric compositions and observability of nitrogen dominated ultra-short period super-Earths
https://arxiv.org/abs/2003.05354

A probabilistic analysis of the Fermi paradox in terms of the Drake formula
https://arxiv.org/abs/2003.04802

TRAPPIST-1 Habitable Atmosphere Intercomparison
https://arxiv.org/abs/2002.10950

The interior and atmosphere of the habitable-zone exoplanet K2-18b
https://arxiv.org/abs/2002.11115

Observational Constraints on the Great Filter
https://arxiv.org/abs/2002.08776

Indexing Exoplanets with Physical Conditions Potentially Suitable for Rock-Dependent Extremophiles
https://arxiv.org/abs/2002.12650

Dust depleted inner disks in a large sample of transition disks through long-baseline ALMA observations
https://arxiv.org/abs/2003.00079

a Meteoritic Protein containing Iron and Lithium
https://arxiv.org/abs/2002.11688

The UV surface habitability of Proxima b
https://arxiv.org/abs/2003.00984

Two planets on the opposite sides of the radius gap transiting the nearby M dwarf LP 729-54
https://arxiv.org/abs/2003.01140

Disentangling Atmospheric Compositions of K2-18 b
https://arxiv.org/abs/2003.01486

Will recent advances in AI result in a paradigm shift in Astrobiology and SETI
https://arxiv.org/abs/1910.03944

An education & outreach tool for exploring the diversity of planets like our own
https://arxiv.org/abs/2001.01438
http://earthlike.world/

Proxima Centauri b A Strong Case for including Cosmic-Ray-induced Chemistry
https://arxiv.org/abs/2003.02036

The Atmospheres of Rocky Exoplanets
https://arxiv.org/abs/2003.03628





Astronomy_News_20_02_2020

Edwin Rod
 

Hi Everyone

 

The usual starcharts and newsletters are attached for the month, along with two interesting papers on Anthropology one takes a look at Easter Island and another the DNA of people outside of Africa. There is an interesting look at Zealanada our small continent mostly submerged. There is also a look at why many Sub Neptune planets are the size they are, and perhaps the distant proposed Ice Giant could fit into this category of planet too.

 

Again there is no shortage of interesting research out this month but if I had to pick out a personal highlight it was the paper looking at the search for an outer ice giant in our solar system. If you’re interested in exo planets, Seti and Red dwarfs there will be lots to keep you occupied!

 




Research papers

Transiting Planet Detection Limits for Nearby Late Red Dwarfs


Chemical Diversity of Super-Earths As a Consequence of Formation
https://arxiv.org/abs/2002.09042

The Design of a Space-based Observation and Tracking System for Interstellar Objects
https://arxiv.org/abs/2002.00984

Maximal Gravity at the Surface of an Asteroid
https://arxiv.org/abs/physics/0312029

Concerns about ground based astronomical observations
https://arxiv.org/abs/2001.10952

The TRAPPIST-1 JWST Community Initiative
https://arxiv.org/abs/2002.04798

A Census Of Coronal Mass Ejections On Solar-like Stars
https://arxiv.org/abs/2002.04430

Three planets transiting the evolved star EPIC 249893012
https://arxiv.org/abs/2002.01755

Numerical study of the evaporation valley and transition from super-Earths to sub-Neptunes
https://arxiv.org/abs/2002.02455

The Impact of Planetary Rotation Rate on the Reflectance of Terrestrial Exoplanets
https://arxiv.org/abs/2002.02549

Atmospheric Erosion by Giant Impacts onto Terrestrial Planets
https://arxiv.org/abs/2002.02977

Habitable zones around almost extremely spinning black holes
https://arxiv.org/abs/2001.10991

The Orbit of Planet Nine Derived from Engineering Physics
https://arxiv.org/abs/2001.09150

Using Data Imputation for Signal Separation in High Contrast Imaging
https://arxiv.org/abs/2001.00563

Effect of vegetation on the temperatures of Trappist-1 planets
https://arxiv.org/abs/2001.08946

Evidence for Spin-orbit Alignment in the TRAPPIST-1 System
https://arxiv.org/abs/2002.05892
 
Characterizing deposits emplaced by cryovolcanic plumes on Europa
https://arxiv.org/abs/2001.10981

Physical Reality and the Unobservables of Physical Nature
https://arxiv.org/abs/2001.10009

The K Dwarf Advantage for Biosignatures on Directly Imaged Exoplanets
https://arxiv.org/abs/2001.10458

Planet formation around M dwarfs via disc instability
https://arxiv.org/abs/2001.10062

Interstellar comet 2I/Borisov as seen by MUSE
https://arxiv.org/abs/2001.11605

Dynamical characterization of the multiple planet system GJ 1148
https://arxiv.org/abs/2002.00906

Water delivery to dry protoplanets by hit-and-run collisions
https://arxiv.org/abs/2002.00231

Magnified X-Ray Binaries as Passive Beacons in SETI
https://arxiv.org/abs/2002.00128

A Framework for Optimizing Exoplanet Target Selection for the James Webb Space Telescope
https://arxiv.org/abs/2002.01495

On the impact of tides on the transit-timing fits to the TRAPPIST-1 system
https://arxiv.org/abs/2002.02015

Potential Backup Targets for Comet Interceptor
https://arxiv.org/abs/2002.01744



This months news and Starcharts

Edwin Rod
 

Hi Everyone

Please enjoy this months news and star charts, along with lots of interesting news and discovery's.

Research papers


Spin dynamics of close-in planets exhibiting large TTVs
https://arxiv.org/abs/1705.04460

Simulations of Water Vapor and Clouds on Rapidly Rotating and Tidally Locked Planets
https://arxiv.org/abs/1912.11329

Transition from eyeball to snowball driven by sea-ice drift on tidally locked terrestrial planets
https://arxiv.org/abs/1912.11377

Emergence of life in an inflationary universe
https://arxiv.org/abs/1911.08092

Transfer of Life by Earth-Grazing Objects to Exoplanetary Systems
https://arxiv.org/abs/2001.02235

How planetary surfaces can shape the climate of habitable exoplanets
https://arxiv.org/abs/2001.00085

Creation and Evolution of Impact-generated Reduced Atmospheres of Early Earth
https://arxiv.org/abs/2001.00095

Detectability of Molecular Signatures on TRAPPIST-1e
https://arxiv.org/abs/2001.01338

The 3.4 µm absorption of the Titan's stratosphere
https://arxiv.org/abs/2001.02791

MCMCI a code to fully characterize an exoplanetary system
https://arxiv.org/abs/1912.12632

The Thermal Evolution Of The Early Moon
https://arxiv.org/abs/2001.07123

Long-term Periodicities in North-South Asymmetry of Solar Activity
https://arxiv.org/abs/2001.05879

3D maps of the Magellanic Clouds using Classical Cepheids
https://arxiv.org/abs/2001.05899

Fundamental limits from chaos on instability time predictions in compact planetary systems
https://arxiv.org/abs/2001.04606


----------------------------------------------------------------------
Interesting News items

Kiwi astronomers among those worried by Elon Musk's plan to launch thousands of satellites
https://www.stuff.co.nz/science/117762106/kiwi-astronomers-among-those-worried-by-elon-musks-plan-to-launch-thousands-of-satellites

Alone in a Crowded Milky Way
https://www.scientificamerican.com/article/alone-in-a-crowded-milky-way/

New Technique May Give Webb Space Telescope a Way to Quickly Identify Planets with Oxygen
http://astrobiology.com/2020/01/new-technique-may-give-webb-space-telescope-a-way-to-quickly-identify-planets-with-oxygen.html

Summer weather
https://www.stuff.co.nz/national/118856594/weather-system-blocking-warmer-temperatures-reaching-wellington


Earth-Size Planet in a Habitable Zone
https://www.jpl.nasa.gov/news/news.php?feature=7569
https://theconversation.com/an-earth-sized-planet-found-in-the-habitable-zone-of-a-nearby-star-129290



Smoke and haze over Wellington, New Zealand.

Edwin Rod
 

Smoke and haze over Wellington, New Zealand.

The hills and harbor had a distinct haze this morning here in Wellington, I hope things are better for our friends in Australia.

BOM weather forecast for NSW, Vic, SA and ACT grim
https://www.abc.net.au/news/2020-01-01/more-heat-bound-for-firegrounds-but-cool-change-to-follow/11835036

Bushfire smoke moves over North Island, creating an eerie sky
https://www.stuff.co.nz/national/118554806/bushfire-smoke-moves-over-north-island-creating-an-eerie-sky


Nikon CoolPix P900
CMOS Sensor
02_01_2020
Target - Subject
Hazey and smokey skys from around home.
Location
Johnsonville, Wellington NZ
http://en.wikipedia.org/wiki/Johnsonville,_New_Zealand
Altitude 220M
Lens
Nikkor 83X Wide Optical Zoom
File Name
Smokehaze_P900_02_01_2020




This months news and star charts - Dec 2019

Edwin Rod
 

Hi everyone

Please find this month’s research and news items attached below, along with the star charts too.

 

It’s almost the summer solstice, but far from it here in Wellington tonight!

https://www.weatherwatch.co.nz/content/temperatures-tonight-and-tomorrow

We had a week of hot weather that was very humid and now cool south-westerly! Forget seeing the stars for a while here!

 

If you happen to be in Nelson over the holiday break this sounds great.

https://www.stuff.co.nz/nelson-mail/news/118322311/liftoff-for-nelson-provincial-museums-new-moon-exhibition

 

Rocket Lab is building a second launch pad.

https://spacenews.com/rocket-lab-to-build-second-launch-pad-in-new-zealand

The Benefits of a dark sky reserve in the Wairarapa

700 extra jobs - Times Age




 

I’m interesting to read the one on Exo moons tonight, and as always there is a range of interesting things to catch up on. A look at the evolution of the solar system, and again some interesting papers on exo planets and Red Dwarfs, along with a look at quantum mechanics.

Andrew also has a few updates I have included as well looking at Mars and other subjects.

I hope you all have a great holiday and Christmas break

Cheers Edwin



This months research

Hidden Planets Implications from Oumuamua and DSHARP
https://arxiv.org/abs/1909.06387

The Search for Living Worlds and the Connection to Our Cosmic Origins
https://arxiv.org/abs/1908.05951

HERITAGE a Monte Carlo code to evaluate the viability of interstellar travels using a multi-generational crew
https://arxiv.org/abs/1708.08649

Revisiting the cosmic-ray induced Venusian radiation dose in the context of habitability
https://arxiv.org/abs/1911.12788

The Transits of Extrasolar Planets with Moons
https://arxiv.org/abs/1105.3189

Photometry of an unusual small distant object 2016 ND21
https://arxiv.org/abs/1912.02533

Distribution and Energy Balance of Pluto's Nitrogen Ice, as seen by New Horizons in 2015
https://arxiv.org/abs/1912.02333

Atmospheres for Potentially Habitable Environments on TRAPPIST-1 Planets
https://arxiv.org/abs/1912.02313

retrieving exoplanet atmospheric winds from high-resolution spectroscopy
https://arxiv.org/abs/1912.02787

Simulated Direct Imaging Detection of Water Vapor For Exo-Earths
https://arxiv.org/abs/1912.02228

Future stellar flybys of the Voyager and Pioneer spacecraft
https://arxiv.org/abs/1912.03503

Habitable Age Instead of Location for Terrestrial Worlds
https://arxiv.org/abs/1912.02862

Climate bistability of Earth-like exoplanets
https://arxiv.org/abs/1912.05392

Do the TRAPPIST-1 Planets Have Hydrogen-rich Atmospheres?
https://arxiv.org/abs/1912.05749

Detection of a wide orbit planetary mass companion to a solar-type Sco-Cen member
https://arxiv.org/abs/1912.04284

Why Are We Obsessed with "Understanding" Quantum Mechanics?
https://arxiv.org/abs/1912.08090

Can close-in giant exoplanets preserve detectable moons
https://arxiv.org/abs/1912.08049

A record of the final phase of giant planet migration
https://arxiv.org/abs/1912.02833



"Identifying Candidate Atmospheres on Rocky M Dwarf Planets via Eclipse Photometry," Daniel D. B. Koll et al., 2019, Astrophysical Journal [http://apj.aas.org, preprint: https://arxiv.org/abs/1907.13138].
* "Identifying Atmospheres on Rocky Exoplanets Through Inferred High Albedo," Megan Mansfield et al., 2019, Astrophysical Journal [http://apj.aas.org, preprint: https://arxiv.org/abs/1907.13150].
* "Analyzing Atmospheric Temperature Profiles and Spectra of M Dwarf Rocky Planets," Matej Malik et al., 2019, Astrophysical Journal [http://apj.aas.org, preprint: https://arxiv.org/abs/1907.13135].
* "A Scaling Theory for Atmospheric Heat Redistribution on Rocky Exoplanets," Daniel D. B. Koll, 2019, Astrophysical Journal [http://apj.aas.org, preprint: https://arxiv.org/abs/1907.13145].





Stars align for economic boost

Edwin Rod
 

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