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Rare cluster 36 EP

NGC 2232

RA 97.0047° · Dec -4.8474° · openngc

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Score breakdown

· 5 badges
36 pts · Rare
Rare 50 pts → Epic
  • Bright enough for the unaided eye +14
  • Star cluster +7
  • Distant (over 1,000 light-years) +6
  • Bright deep-sky object +6
  • Open cluster +3
Total score 36

14 more points to reach Epic.

Badges

  • Star cluster · +7
  • Distant (over 1,000 light-years) · +6
  • Bright deep-sky object · +6
  • Open cluster · +3
  • Bright enough for the unaided eye · +14

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

  • How to spot it. At magnitude 3.9 you can see it with your own eyes from a dark site, over in Monoceros.
  • Seen from everywhere. It sits almost on the celestial equator, so it can be seen from essentially anywhere on Earth.
  • 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. ≈ 18.7 million years at Voyager 1's speed (17 km/s).

Properties

constellation
Mon
dist ly
1062.0514
dso type
OCl
mag
3.9
name
NGC 2232
radial velocity kms
26
redshift
0.0001
size arcmin
9.9

About NGC 2232

NGC 2232 is a rare cluster. It lies about 1,062.1 light-years from Earth, sits in the constellation Mon and shines at apparent magnitude 3.9.

An open cluster: a few hundred stars born together out of one collapsing cloud, still drifting along in loose formation.

How to see it

Look for NGC 2232 in the constellation Mon. At apparent magnitude 3.9, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, NGC 2232 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 2232 is a rare cluster

NGC 2232 scores 36 points on Spacedle's rarity scale, which places it in the rare tier. Another 14 points would lift it into a rarer tier.

That score comes from 5 science badges — Star cluster, Distant (over 1,000 light-years), Bright deep-sky object, Open cluster and Bright enough for the unaided eye — 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.