October 2019 Newsletters and Starcharts

Edwin Rod

Hi everyone


All the usual Star charts and news items are attached for this month. I have also attached two bit of interesting research. The first looks at Ceres and how its domes are formed, these are fascinating features that hint at an active geology and there are similarities with Earth here too.  Gale crater also gets a look at with the history of salty water in the basin and past environmental conditions.

Two stories I have been following with interest are comet Borisov the latest interstellar visitor and also the work to get the Mole working on insight. Thanks to Andrew B we have some very good updates and details that he has written up on the subjects, these can be found in the attached newsletter txt.file. Having Red dwarfs as one of my favourite subjects at the moment it was interesting reading about the star system this comet originated from.


Social Media

I have been thinking about how and where I contribute here, with the recent demise of Google Plus and now Yahoo Groups, places I found to be very positive and friendly platforms have disappeared. The overall feeling from these platforms from a range of people in different groups is a strong dislike of facebook in fact many refuse to use it at all. I have been spending time at over the past few weeks and I personally like the look and feel of the place, so if you haven’t already take a look and join my astronomy group there if you like.

Astronomy in New Zealand


Thanks Edwin


This month’s research



What if Planet 9 is a Primordial Black Hole?


Nomads of the Galaxy


The Snowball Stratosphere


Developing Linear Dark-Field Control for Exoplanet Direct Imaging


Detection of CN gas in Interstellar Object 2I/Borisov


Observing a wormhole


The Habitable Zone Around Supermassive Black Holes


A three-phase approach to grain surface chemistry in protoplanetary disks


Measuring the atomic composition of planetary building blocks


The Effect of Land Fraction and Host Star Spectral Energy Distribution on the Planetary Albedo of Terrestrial Worlds


Resilient habitability of nearby exoplanet systems


Plutos Far Side



Red Dwarfs - Exo planets


Planet formation and migration near the silicate sublimation front in protoplanetary disks


A new take on the low-mass brown dwarf companions on wide-orbits in Upper-Scorpius


The Precision of Mass Measurements Required for Robust Atmospheric Characterization of Transiting Exoplanets


Stability of Nitrogen in Planetary Atmospheres in Contact with Liquid Water



No Snowball on Habitable Tidally Locked Planets with a Dynamic Ocean



Exporting Terrestrial Life Out of the Solar System with Gravitational Slingshots of Earthgrazing Bodies


How do Planetary Radius and Gravity Influence the Surface Climate of Earth-like Planets


SETI - And the search for life



A very good update on Borisov


Detection of CN gas in Interstellar Object 2I/Borisov


Interstellar Interloper Borisov Looks Like a Regular Comet, for Now