RA 107.5570° · Dec -4.2371° · star
4 more points to reach Common.
20 Mon is a trash star. It lies about 202.8 light-years from Earth, sits in the constellation Mon, shines at apparent magnitude 4.91 and has spectral type K0III.
20 Mon is a trash star worth 11 points across 2 science badges. Explore its facts, badges and place on the sky map, then add it to your dex on Spacedle.
Look for 20 Mon in the constellation Mon. At apparent magnitude 4.91, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, 20 Mon is best seen from a dark site away from city lights, and when it is above the horizon depends on your latitude and the time of year. The visibility panel above works out tonight's viewing window for your saved location.
20 Mon scores 11 points on Spacedle's rarity scale, which places it in the trash tier. Another 4 points would lift it into a rarer tier.
That score comes from 2 science badges — Star and Naked-eye visible — each earned for a real, measurable property of the object. Rarity on Spacedle is never random: the more remarkable an object's astrophysics, the more badges it collects, the higher it scores, and the rarer it ranks.