About Great Bird Cluster
Great Bird Cluster is a common cluster. It sits in the constellation Mon and shines at apparent magnitude 6.
Notable enough to have earned a proper name, not just a catalogue number.
Common cluster 21 EP
Great Bird Cluster
RA 102.9387° · Dec 0.4592° · openngc
Score breakdown
· 3 badgesCommon 24 pts → Uncommon
- Has a proper name +8
- Star cluster +7
- Bright deep-sky object +6
Total score 21
3 more points to reach Uncommon.
Badges
- Star cluster · +7
- Bright deep-sky object · +6
- Has a proper name · +8
Trivia
How we found it
- Named. Notable enough to have earned a proper name, not just a catalogue number.
Properties
- constellation
- Mon
- dso type
- OCl
- mag
- 6
- name
- Great Bird Cluster
- named
- yes
How to see it
Look for Great Bird Cluster in the constellation Mon. At apparent magnitude 6, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, Great Bird Cluster 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.
Why Great Bird Cluster is a common cluster
Great Bird Cluster scores 21 points on Spacedle's rarity scale, which places it in the common tier. Another 3 points would lift it into a rarer tier.
That score comes from 3 science badges — Star cluster, Bright deep-sky object and Has a proper name — 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.