About NGC 1901
NGC 1901 is an uncommon cluster. It lies about 1,383.1 light-years from Earth and sits in the constellation Dor.
An open cluster: a few hundred stars born together out of one collapsing cloud, still drifting along in loose formation.
Uncommon cluster 31 EP
NGC 1901
RA 79.5632° · Dec -68.4363° · openngc
Score breakdown
· 5 badgesUncommon 34 pts → Rare
- Coming towards us +10
- Star cluster +7
- Distant (over 1,000 light-years) +6
- Big on the sky +5
- Open cluster +3
Total score 31
3 more points to reach Rare.
Badges
- Star cluster · +7
- Distant (over 1,000 light-years) · +6
- Open cluster · +3
- Big on the sky · +5
- Coming towards us · +10
Trivia
What it actually is
- What it actually is. An open cluster: a few hundred stars born together out of one collapsing cloud, still drifting along in loose formation.
Sense of scale
- In perspective. Far away by human standards, yet still a local address inside the Milky Way's spiral arms.
- Sense of scale. Gravity is not strong enough to hold it. Within a few hundred million years these siblings will be scattered right around the galaxy.
Find it in the sky
- Where to look. You'll find it in the constellation Dorado.
- Southern sky only. So far south it never rises for most of the northern hemisphere. To see it you'd have to travel to Chile, South Africa or Australia.
- Best time of year. It stands highest in the middle of the night around December — that's when to go looking.
Could we get there?
- Verdict. Impossible with our current technology — and the next millennium of it.
Getting there
- Aboard Voyager 1. ≈ 24.3 million years at Voyager 1's speed (17 km/s).
Properties
- constellation
- Dor
- dist ly
- 1383.0718
- dso type
- OCl
- name
- NGC 1901
- radial velocity kms
- -1
- size arcmin
- 11.1
Nearby objects
How to see it
Look for NGC 1901 in the constellation Dor.
Like any astronomical target, NGC 1901 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 NGC 1901 is an uncommon cluster
NGC 1901 scores 31 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 3 points would lift it into a rarer tier.
That score comes from 5 science badges — Star cluster, Distant (over 1,000 light-years), Open cluster, Big on the sky 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.