40.7 ly | 1 star | 7 planets
Celestia addons for the "seven spheres" themselves, the planets orbiting the ultracool dwarf star TRAPPIST-1. All of them are similar in size and mass to Earth, and three or four orbit within the habitable zone. The system is a target for atmospheric spectroscopy with the James Webb Space Telescope.
This addon has textures updated based on JWST results, currently only for the two innermost planets. JWST observations suggest that TRAPPIST-1 b lacks a significant atmosphere and has a low albedo, and that TRAPPIST-1 c similarly lacks a thick Venus-like atmosphere and may have a thin atmosphere or none.
Authors: SevenSpheres
Download | celestia.mobi - Last updated 2023-06-19
The textures in this version of the addon are from the 2018 NASA artistic impression by Rob Hurt and Tim Pyle, and can be set to 2K, 4K, or 8K resolution depending on your device's capabilities. Originally posted in my addon thread. The texture source is here (mirror); thanks to Chara/EarthSolar for pointing me to this in 2019!
Authors: SevenSpheres, NASA
Download | celestia.mobi - Last updated 2023-02-26
