Laintal

  Hi Folks Please find this month’s news items and research papers below along with the attached starcharts.   If I had to pick a personal highlight it was the renewed search for a potential planet in the Juiper belt along with stars from Andromeda and exoplanets too.   Cheers Edwin       Research papers   The Dimorphos Boulder Swarm https://iopscience.iop.org/article/10.3847/2041-8213/ace1ec     How to measure light pollution—A systematic review of methods and applications https://www.sciencedirect.com/science/article/pii/S2210670723000768         On Stellar Migration from the Andromeda Galaxy https://arxiv.org/abs/2306.08143     A transiting brown dwarf in a 2 hour orbit https://arxiv.org/abs/2307.15729       The Oxygen Bottleneck for Technospheres https://arxiv.org/abs/2308.01160     Day and Night Habitability of Tidal...

  News, research papers and Starcharts for August 2023     Hi everyone some interesting news and research out this month.   Venus Mercury and Regulus - Photo taken last weekend A smartphone image here of the nice sunset and evening from Featherston, In the Wairarapa. The conjunction of the 3 can be seen above the Rimutaka ranges in the evening sky, some due and smoke was in the air. Relative to where we live in Wellington the sky was much clearer and dark even from in the streets of the town, the hills block the glow of Wellington, the street lights were better shielded and dimmer too. Cheers Edwin   Liquid water on cold exo-Earths via basal melting of ice sheets https://www.nature.com/ articles/s41467-022-35187-4       Why the day is 24 hours long: The history of Earth’s atmospheric thermal tide, composition, and mean temperature https://www.science.org/doi/ 10.1126/sciadv.add2499       I/Pu ...

 No thick carbon dioxide atmosphere on the rocky exoplanet TRAPPIST-1?c https://www.nature.com/articles/s41586-023-06232-z Exoplanet Volatile Carbon Content as a Natural Pathway for Haze Formation https://iopscience.iop.org/article/10.3847/2041-8213/acd377 Gravitational Machines https://arxiv.org/abs/2305.10470 Radial-velocity discovery of a second planet in the TOI-1338/BEBOP-1 circumbinary system https://www.nature.com/articles/s41550-023-01948-4 Slow evolution of Europa’s interior: metamorphic ocean origin, delayed metallic core formation, and limited seafloor volcanism https://www.science.org/doi/10.1126/sciadv.adf3955 Starlink Generation 2 Mini Satellites https://arxiv.org/abs/2306.06657 The earliest unambiguous Neanderthal engravings on cave walls: La Roche-Cotard, Loire Valley, France https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0286568 Could a captured planet be out in the far reaches of the Ort Cloud? Or perhaps an object ejected out there from the sol...

  May 2023 news and research items Hi everyone please find this month’s Starchart’s and newsletter attached,   There is a very interesting mix of papers this month, I have just finished reading the one on Antarctica tonight which was very interesting. There are a few interesting ones on exoplanets, and red dwarfs. A look at the Moons of Uranus possible water oceans still under there surfaces? There is an interesting video and article on the Kuiper belt.   Research papers   Two super-Earths at the edge of the habitable zone of the nearby M dwarf TOI-2095 https://arxiv.org/abs/2304.09220   Extremely Large Telescopes to Probe Earth-like O2 Levels in Nearby Transiting Habitable Zone Exoplanets https://arxiv.org/abs/2304.12490   A Water-Rich Atmosphere or Stellar Contamination for the Warm Super-Earth GJ~486b High Tide or Riptide on the Cosmic Shoreline https://arxiv.org/abs/2305.00868   A bloated sub-Saturn on a polar ...

Hi everyone   The three big events this month have to be the Solar eclipse in Exomouth in WA some amazing photos from that event. The launch of Starship and the Juice mission to Jupiter are also big events. There isn’t as many papers this month that I have managed to find and read but some interesting reading none the less.         Research papers     Science opportunities with solar sailing smallsats https://arxiv.org/abs/2303.14917       Interstellar Objects https://arxiv.org/abs/2304.00568       An Astronomers Guide to Machine Learning https://arxiv.org/abs/2304.00512       A Morphological and Spatial Analysis of Volcanoes on Venus https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023JE007753         Mid-latitudinal habitable environment for marine eukaryotes during the waning stage of the Marinoan snowball glaciation h...