RA 42.9931° · Dec 11.3700° · star
1 more point to reach Common.
HD 17820 is a trash star. It lies about 199 light-years from Earth, sits in the constellation Ari, shines at apparent magnitude 8.38 and has spectral type G5.
Its spectrum reads G5 — a G-type star: the very same spectral class as our own Sun.
Look for HD 17820 in the constellation Ari. At apparent magnitude 8.38, it is an easy target for binoculars.
Like any astronomical target, HD 17820 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.
HD 17820 scores 14 points on Spacedle's rarity scale, which places it in the trash tier. Another 1 point would lift it into a rarer tier.
That score comes from 3 science badges — Star, On the zodiac and Sun-like G-type star — 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.