RA 296.8469° · Dec 18.5343° · star
3 more points to reach Epic.
7Del Sge is a rare variable star. It lies about 594.1 light-years from Earth, sits in the constellation Sge, shines at apparent magnitude 3.68 and has spectral type M2II + B6.
Its spectrum reads M2II + B6 — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.
Look for 7Del Sge in the constellation Sge. At apparent magnitude 3.68, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, 7Del Sge 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.
7Del Sge scores 47 points on Spacedle's rarity scale, which places it in the rare tier. Another 3 points would lift it into a rarer tier.
That score comes from 7 science badges — Variable star, Naked-eye visible, Cool red M-type star, Bright giant, Intrinsically luminous (Mv < −2), Gently variable and A named variable 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.