TRAPPIST 1 - a system of an ultra-small red dwarf (just 0.08 Solar masses) with a 7 Earth-sized exoplanets, 3 of which are in the habitable zone, has been discovered recently. (Well, first planets in this system was discovered in 2015, but today was presented 4 new planets).
Official press-release: https://www.eso.org/public/usa/news/eso1706/
You may recognize the software used to make some graphics and animations for it:)
To add this system to SE, download this file and put it into addons/
folder. Surface classes are given to planets based on their bulk density: b, f - oceania, d, e - terra, c, g, h - desert
according to the new article
, masses of outer planets are much less, so they all must be composed of water and/or ice: b, с - desert, d - terra, e, f - oceania (partially frozen), g, h - ice world.
Star luminosity is increased 2 times to make temperatures on planets more high (because in SE temperature calculation on planets of cool stars is somewhat inaccurate).
TRAPPIST-1.pakThe system map in the new planets Chart (coming in the 0.981). Maybe I should force 'correct' planet orientation in relation to the sun? Tidally locked planets looks weird without it.
4k view from the planet b on a planets c, d, h and e. Planets there does not needs moons, neighbouring planets sometimes became as large in the sky as the Moon in Earth's sky (planet с on this image is 1.2°, or 2.5 times larger than the full Moon).
4k view from the planet e on a parent star and planets b, c, d and f.