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+


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

Feasibility Analysis and Preliminary Design of ChipSat Entry for In-situ Investigation of the Atmosphere of Venus

Transfer of Life Between Earth and Venus with Planet-Grazing Asteroids

Seeing above the Clouds with High Resolution Spectroscopy

Estimating the Ultraviolet Emission of M dwarfs with Exoplanets from Ca II and Ha

Water Vapor and Clouds on the Habitable-Zone Sub-Neptune Exoplanet K2-18b


Accretion disk's magnetic field controlled the composition of the terrestrial planets

Stellar Flares versus Luminosity XUV-induced Atmospheric Escape and Planetary Habitability

A kilometer-scale asteroid inside Venus's orbit

Direct characterization of young giant exoplanets at high spectral resolution by coupling SPHERE and CRIRES

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?

Constraints on Stupendously Large Black Holes

Direct Imaging Discovery of a Young Brown Dwarf Companion to an A2V Star

The High-Energy Radiation Environment Around a 10 Gyr M Dwarf

Utilizing a Database of Simulated Geometric Albedo Spectra for Photometric Characterization of Rocky Exoplanet Atmospheres

Cryogenic Cometary Sample Return

Habitable Zones in Binary Star Systems

The Equatorial Jet Speed on Tidally Locked Planets

A Recipe for Geophysical Exploration of Enceladus

The effects of granulation and supergranulation on Earth-mass planet detectability

Lithologic Controls on Silicate Weathering Regimes of Temperate Planets

Evolution of the Earth's Polar Outflow From Mid-Archean to Present

The impact of the planetesimal surface density in the terrestrial planet zone

Alien skies

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 -

Camera retailer who swindled more than $100,000 from customers jailed

Gobekli Tepe: The world’s first astronomical observatory?

Dark sky reserve moving forward

Dark Sky Maps

New Zealand Tasmanian tiger pelt provides DNA of extinct marsupial

A Supercomputer Analyzed Covid-19 — and an Interesting New Theory Has Emerged

A mechanistic model and therapeutic interventions for COVID-19 involving a RAS-mediated bradykinin storm

Intensive Care Unit Admission and Mortality Among Patients Hospitalized for COVID-19

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

Magma ocean evolution of the TRAPPIST-1 planets

Potential For Liquid Water Biochemistry Deep Under The Surfaces Of The Moon, Mars And Beyond

Isotopically distinct terrestrial planets via local accretion

High-resolution survey for planetary companions to young stars in the Taurus Molecular Cloud

Quantifying the information impact of future searches for exoplanetary biosignatures

Detection of ten new planets

Missions to and Sample Returns from Nearby Interstellar Objects

An eclipsing M-dwarf close to the hydrogen burning limit from NGTS

Powering the Galilean Satellites with Moon-Moon Tides

The Science Case for a Titan Flagship-class Orbiter with Probes

Optical Transmission Spectroscopy of the Terrestrial Exoplanet LHS 3844b

Effects of Flux Variation on the Surface Temperatures of Earth-like Circumbinary Planets

Could the Migration of Jupiter have Accelerated the Atmospheric Evolution of Venus

Differing Enceladean ocean circulation and ice shell geometries driven by tidal heating

Non-detection of O2/O3 informs frequency of Earth-like planets with LUVOIR but not HabEx

Water worlds in N-body simulations with fragmentation in systems without gaseous giants

Monte Carlo estimation of the probability of causal contacts between communicating civilisations

A Long-Lived Sharp Disruption on the Lower Clouds of Venus

The Habitable-zone Planet Finder Reveals A High Mass and a Low Obliquity for the Young Neptune K2-25b

An astrometric planetary companion candidate to the M9 Dwarf TVLM 513-46546

The Habitability of the Galactic Bulge

Stellar Pulsation and the Production of Dust and Molecules in Galactic Carbon Stars

Prebiotic precursors of the primordial RNA world in space

Exoplanets Sciences with Nulling Interferometers and a Single-Mode Fiber-Fed Spectrograph

Asteroid impact, Schumann resonances and the end of dinosaurs

Observing Earth from the Moon to prepare for detecting life on Earth-like exoplanets

Dynamical Packing in the Habitable Zone

The stability of tightly-packed, evenly-spaced systems of Earth-mass planets orbiting a Sun-like star

Oceanic and atmospheric methane cycling in the cGENIE Earth system model

Colors of an Earth-like exoplanet

investigating the biological potential of galactic cosmic ray-induced radiation-driven chemical disequilibrium in the Martian subsurface

Near-parabolic comets observed in 2006-2010

No evidence for interstellar planetesimals trapped in the Solar System

The Science Case for Spacecraft Exploration of the Uranian Satellites

Can Volcanism Build Hydrogen-Rich Early Atmospheres

Using a real-world network to model localized COVID-19 control strategies

Deforestation and world population sustainability: a quantitative analysis

Interesting News items

New Zealand Astrophotography Weekend 2020

'Shallow Lightning' and 'Mushballs' Reveal Ammonia to NASA's Juno Scientists

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

The People’s Space Odyssey: 2010: The Year We Make Contact

The scramble for space at Earth’s outer limits

The Unraveling of America

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.


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

Effect of Sea-ice Drift on the Onset of Snowball Climate on Rapidly Rotating Aqua-planets

Regional study of Europa's photometry

A playable package for modeling interstellar chemistry

Estimating survival probability using the terrestrial extinction history for the search for extraterrestrial life

Ancient Australian Rocks and the Search for Life on Mars

A pole-to-equator ocean overturning circulation on Enceladus

The role of clouds on the depletion of methane and water dominance

Predicting the long-term stability of compact multiplanet systems

Habitability Models for Planetary Sciences

Water transport throughout the TRAPPIST-1 system

The Dynamic Proto-atmospheres around Low-Mass Planets with Eccentric Orbits

Atmospheric Erosion by Giant Impacts onto Terrestrial Planets A Scaling Law

Unexpected Circular Radio Objects at High Galactic Latitude

A review of possible planetary atmospheres in the TRAPPIST-1 system

Terrestrial Planets Comparative Climatology (TPCC) mission concept

Worlds without Moons Exomoon Constraints for Compact Planetary Systems

Human Assisted Science at Venus Venus Exploration in the New Human Spaceflight Age

Tidal Currents Detected in Kraken Mare Straits from Cassini VIMS Sun Glitter Observations

The Venus Life Equation

planetary atmospheres and their link to the stellar environment

Dyson Spheres

JWST Transit Spectra for Cloudy Exoplanets

Ocean Worlds Exploration and the Search for Life

Interesting News items

Native South Americans were early inhabitants of Polynesia

Did ancient Americans settle in Polynesia? The evidence doesn’t stack up

Wai-iti stargazing site receives international Dark Sky Park recognition



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

The Breakthrough Listen Exotica Catalog

An eccentric Neptune-mass planet near the inner edge of the BD-11 4672 habitable zone

Spin-orbit alignment of the ß Pictoris planetary system

A Mini-Neptune and a Venus-Zone Planet in the Radius Valley Orbiting the Nearby M2-dwarf TOI-1266

Inferring the population properties of binary black holesfrom unresolved gravitational waves

Retrieving scattering clouds and disequilibrium chemistry in the atmosphere of HR 8799e

Neptune-Size Exoplanet HD 106315 c

The Astrobiological Copernican Weak and Strong Limits for Extraterrestrial Intelligent Life

Lessons learned from (and since) the Voyager 2 flybys of Uranus and Neptune

Planet formation and Volatile Delivery

Astrochemistry During the Formation of Stars

transit candidate in the habitable zone of Kepler-160

Photometrically-corrected global infrared mosaics of Enceladus

The Effect of Substellar Continent Size on Ocean Dynamics of Proxima Centauri b

Implications of different stellar spectra for the climate of tidally-locked Earth-like exoplanets

Atmospheric Escape From TOI-700 d Venus vs Earth Analogs

Aquatic Biospheres On Temperate Planets Around Sun-like Stars And M-dwarfs

Qualitative classification of extraterrestrial civilizations

A Long-lived Sharp Disruption on the Lower Clouds of Venus

Possible Interstellar meteoroids detected by the Canadian Meteor Orbit Radar

Evidence that 1I/2017 U1 (`Oumuamua) was composed of molecular hydrogen ice

Revisiting Proxima with ESPRESSO

High mantle seismic P-wave speeds as a signature for gravitational spreading of superplumes

Exomoon habitability constrained by illumination and tidal heating

On-sky verification of Fast and Furious focal-plane wavefrontsensing

Interesting News items

Super Earths

Nabta Playa

LIfe in the Galaxy

Interesting look at the night sky

Why astronomers now doubt there is an undiscovered 9th planet in our solar system

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


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!

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


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

The Effect of Seafloor Weathering on Planetary Habitability

The large Trans-Neptunian Object 2002 TC302

instantaneous incoherent speckle grid for high-precision astrometry and photometry

Stellar Variability in a Forming Massive Star Cluster

The Discovery of the Long-Period, Eccentric Planet Kepler-88 d

Constraining the final merger of contact binary(486958) Arrokoth

Two examples of how to use observations of terrestrial planets

Earths in Other Solar Systems N-body simulations

World ships Feasibility and Rationale

Further constraining the Planet Nine hypothesis with numerical simulations

Dark Energy Survey's extreme trans-Neptunian objects

The Brute-Force Search for Planet Nine

Biosignature Surveys to Exoplanet Yields and Beyond

Snow-lines can be thermally unstable

Wide band, tunable gamma-ray lenses

The occurrence rate of exoplanets orbiting ultracool dwarfs as probed by K2

Testing Earth-like atmospheric evolution on exo-Earths

Laboratory studies on the viability of life in H2-dominated exoplanet atmospheres

Thermodynamic and Energetic Limits on Continental Silicate Weathering

Switching LPS to LED Streetlight May Dramatically Reduce Activity and Foraging of Bats

Dynamical effects on the habitable zone for Earth-like exomoons


Interesting News items

On Inspiration, Astrobiology, and the Origins of Life in the Universe: An Interview with Haritina Mogosanu

Dock at the ISS

An Alternative to Planet 9: Maybe There Is Nothing Special


Zealandia: Earth’s Hidden Continent

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
Target - Subject
Mt Alpha
Johnsonville, Wellington NZ,_New_Zealand
Altitude 220M
Nikkor 83X Wide Optical Zoom
File Name


A stunning Moonrise over the Rimutaka ranges

Nikon CoolPix P900
CMOS Sensor
Target - Subject
Moon rise
Johnsonville, Wellington NZ,_New_Zealand
Nikkor 83X Wide Optical Zoom
File Name

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

The multi-planet system TOI-421 A warm Neptune

Searching for the near infrared counterpart of Proxima c

Strong Near-Infrared Spectral Variability of the Young Cloudy L Dwarf Companion VHS J1256-1257 b

Habitability is a continuous property of nature

The Astrobiological Copernican Weak and Strong Limits for Extraterrestrial Intelligent Life

Radar evidence of subglacial liquid water on Mars

Detectability of Life Using Oxygen on Pelagic Planets and Water Worlds

Global Mapping of the Surface Composition on an Exo-Earth using Color Variability

an astrometric calibration field for high-contrast imagers in Baade's Window

Atmospheric convection plays a key role in the climate of tidally-locked terrestrial exoplanets

The effect of high nitrogen pressures on the habitable zone and an appraisal of greenhouse states

Outstanding Challenges of Exoplanet Atmospheric Retrievals

Focal Plane Wavefront Sensing with the FAST TGV Coronagraph

Salty Oceans in Low Mass Habitable Planets and Global Climate Evolution

Stellar Driven Evolution of Hydrogen-Dominated Atmospheres

A kinematically hot population of young stars in the solar neighbourhood

The Habitability of Large Elliptical Galaxies

Uranian Satellite Formation by Evolution of a Water Vapor Disk

From Super-Earths to Mini-Neptunes

Earth-size planet formation in the habitable zone of circumbinary stars

Habitability of polar regions in tidally locked extrasolar planet near the M-Dwarf stars

Explaining the Cold Temperatures Retrieved from Transmission Spectra of Exoplanet Atmospheres

Atmospheric evolution from noble gas and Nitrogen on Earth Mars & Venus

An information theoretic framework for classifying exoplanetary system architectures

Delivery of water and volatiles to the terrestrial planets and the Moon

Human wealth evolution trends and fluctuations

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

Repeated Impact-Driven Plume Formation On Enceladus Over Myr Timescales

The pivot energy of Solar Energetic Particles Affecting the Martian surface radiation environment

Europa's Hemispheric Color Dichotomy as a Constraint on Non-synchronous Rotation

The Low Earth Orbit Satellite Population and Impacts of the SpaceX Starlink Constellation

The chaotic terrains of Mercury

Earths polar night boundary layer as an analogue

Evolutionary history, potential intermediate animal host, andcross-species analyses of SARS-CoV-2

No credible evidence supporting claims of the laboratory engineering of SARS-CoV-2

Venusian Habitable Climate Scenarios

Atmospheric compositions and observability of nitrogen dominated ultra-short period super-Earths

A probabilistic analysis of the Fermi paradox in terms of the Drake formula

TRAPPIST-1 Habitable Atmosphere Intercomparison

The interior and atmosphere of the habitable-zone exoplanet K2-18b

Observational Constraints on the Great Filter

Indexing Exoplanets with Physical Conditions Potentially Suitable for Rock-Dependent Extremophiles

Dust depleted inner disks in a large sample of transition disks through long-baseline ALMA observations

a Meteoritic Protein containing Iron and Lithium

The UV surface habitability of Proxima b

Two planets on the opposite sides of the radius gap transiting the nearby M dwarf LP 729-54

Disentangling Atmospheric Compositions of K2-18 b

Will recent advances in AI result in a paradigm shift in Astrobiology and SETI

An education & outreach tool for exploring the diversity of planets like our own

Proxima Centauri b A Strong Case for including Cosmic-Ray-induced Chemistry

The Atmospheres of Rocky Exoplanets


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

The Design of a Space-based Observation and Tracking System for Interstellar Objects

Maximal Gravity at the Surface of an Asteroid

Concerns about ground based astronomical observations

The TRAPPIST-1 JWST Community Initiative

A Census Of Coronal Mass Ejections On Solar-like Stars

Three planets transiting the evolved star EPIC 249893012

Numerical study of the evaporation valley and transition from super-Earths to sub-Neptunes

The Impact of Planetary Rotation Rate on the Reflectance of Terrestrial Exoplanets

Atmospheric Erosion by Giant Impacts onto Terrestrial Planets

Habitable zones around almost extremely spinning black holes

The Orbit of Planet Nine Derived from Engineering Physics

Using Data Imputation for Signal Separation in High Contrast Imaging

Effect of vegetation on the temperatures of Trappist-1 planets

Evidence for Spin-orbit Alignment in the TRAPPIST-1 System
Characterizing deposits emplaced by cryovolcanic plumes on Europa

Physical Reality and the Unobservables of Physical Nature

The K Dwarf Advantage for Biosignatures on Directly Imaged Exoplanets

Planet formation around M dwarfs via disc instability

Interstellar comet 2I/Borisov as seen by MUSE

Dynamical characterization of the multiple planet system GJ 1148

Water delivery to dry protoplanets by hit-and-run collisions

Magnified X-Ray Binaries as Passive Beacons in SETI

A Framework for Optimizing Exoplanet Target Selection for the James Webb Space Telescope

On the impact of tides on the transit-timing fits to the TRAPPIST-1 system

Potential Backup Targets for Comet Interceptor

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

Simulations of Water Vapor and Clouds on Rapidly Rotating and Tidally Locked Planets

Transition from eyeball to snowball driven by sea-ice drift on tidally locked terrestrial planets

Emergence of life in an inflationary universe

Transfer of Life by Earth-Grazing Objects to Exoplanetary Systems

How planetary surfaces can shape the climate of habitable exoplanets

Creation and Evolution of Impact-generated Reduced Atmospheres of Early Earth

Detectability of Molecular Signatures on TRAPPIST-1e

The 3.4 µm absorption of the Titan's stratosphere

MCMCI a code to fully characterize an exoplanetary system

The Thermal Evolution Of The Early Moon

Long-term Periodicities in North-South Asymmetry of Solar Activity

3D maps of the Magellanic Clouds using Classical Cepheids

Fundamental limits from chaos on instability time predictions in compact planetary systems

Interesting News items

Kiwi astronomers among those worried by Elon Musk's plan to launch thousands of satellites

Alone in a Crowded Milky Way

New Technique May Give Webb Space Telescope a Way to Quickly Identify Planets with Oxygen

Summer weather

Earth-Size Planet in a Habitable Zone

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

Bushfire smoke moves over North Island, creating an eerie sky

Nikon CoolPix P900
CMOS Sensor
Target - Subject
Hazey and smokey skys from around home.
Johnsonville, Wellington NZ,_New_Zealand
Altitude 220M
Nikkor 83X Wide Optical Zoom
File Name

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!

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.


Rocket Lab is building a second launch pad.

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

The Search for Living Worlds and the Connection to Our Cosmic Origins

HERITAGE a Monte Carlo code to evaluate the viability of interstellar travels using a multi-generational crew

Revisiting the cosmic-ray induced Venusian radiation dose in the context of habitability

The Transits of Extrasolar Planets with Moons

Photometry of an unusual small distant object 2016 ND21

Distribution and Energy Balance of Pluto's Nitrogen Ice, as seen by New Horizons in 2015

Atmospheres for Potentially Habitable Environments on TRAPPIST-1 Planets

retrieving exoplanet atmospheric winds from high-resolution spectroscopy

Simulated Direct Imaging Detection of Water Vapor For Exo-Earths

Future stellar flybys of the Voyager and Pioneer spacecraft

Habitable Age Instead of Location for Terrestrial Worlds

Climate bistability of Earth-like exoplanets

Do the TRAPPIST-1 Planets Have Hydrogen-rich Atmospheres?

Detection of a wide orbit planetary mass companion to a solar-type Sco-Cen member

Why Are We Obsessed with "Understanding" Quantum Mechanics?

Can close-in giant exoplanets preserve detectable moons

A record of the final phase of giant planet migration

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

Stars align for economic boost

Edwin Rod

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