RA 247.1671° · Dec -35.3536° · openngc
16 more points to reach Epic.
ESO 390-006 is a rare cluster. It sits in the constellation Sco and shines at apparent magnitude 12.
A globular cluster: hundreds of thousands of stars packed into a ball a few dozen light-years across, orbiting far out in the galaxy's halo.
Look for ESO 390-006 in the constellation Sco. At apparent magnitude 12, a small backyard telescope will bring it into view.
Like any astronomical target, ESO 390-006 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.
ESO 390-006 scores 34 points on Spacedle's rarity scale, which places it in the rare tier. Another 16 points would lift it into a rarer tier.
That score comes from 4 science badges — Star cluster, Globular cluster, On the zodiac 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.