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Uncommon cluster 26 EP

NGC 2215

RA 95.2052° · Dec -7.2838° · openngc

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Score breakdown

· 4 badges
26 pts · Uncommon
Uncommon 34 pts → Rare
  • Coming towards us +10
  • Star cluster +7
  • Distant (over 1,000 light-years) +6
  • Open cluster +3
Total score 26

8 more points to reach Rare.

Badges

  • Star cluster · +7
  • Distant (over 1,000 light-years) · +6
  • Open cluster · +3
  • 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

  • How to spot it. At magnitude 8.4 it is just past naked-eye reach — ordinary binoculars will pull it in, 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. ≈ 56.1 million years at Voyager 1's speed (17 km/s).

Properties

constellation
Mon
dist ly
3194.476
dso type
OCl
mag
8.45
name
NGC 2215
radial velocity kms
-2
size arcmin
8.4

About NGC 2215

NGC 2215 is an uncommon cluster. It lies about 3,194.5 light-years from Earth, sits in the constellation Mon and shines at apparent magnitude 8.45.

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 2215 in the constellation Mon. At apparent magnitude 8.45, it is an easy target for binoculars.

Like any astronomical target, NGC 2215 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 2215 is an uncommon cluster

NGC 2215 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.