RA 255.9625° · Dec -48.0833° · openngc
8 more points to reach Rare.
Harvard 13 is an uncommon cluster. It lies about 4,041.6 light-years from Earth and sits in the constellation Ara.
An open cluster: a few hundred stars born together out of one collapsing cloud, still drifting along in loose formation.
Look for Harvard 13 in the constellation Ara.
Like any astronomical target, Harvard 13 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.
Harvard 13 scores 26 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 8 points would lift it into a rarer tier.
That score comes from 4 science badges — Star cluster, Distant (over 1,000 light-years), Open cluster and Coming towards us — 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.