Rare cluster 39 EP

NGC 2447

RA 116.1218° · Dec -23.8531° · openngc

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Score breakdown

· 6 badges

39 pts · Rare

Rare 50 pts → Epic

Messier object +12
Star cluster +7
Distant (over 1,000 light-years) +6
Bright deep-sky object +6
Big on the sky +5
Open cluster +3

Total score 39

11 more points to reach Epic.

Badges

Star cluster · +7
Distant (over 1,000 light-years) · +6
Messier object · +12
Bright deep-sky object · +6
Open cluster · +3
Big on the sky · +5

Trivia

Hard to believe

Messier object. One of the 110 showpieces of the Messier list — catalogued as M93.

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 6.2 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Puppis.
Southern sky. It rides the southern half of the sky — an easier target the further south you are.
Best time of year. It stands highest in the middle of the night around January — that's when to go looking.

Could we get there?

Verdict. Impossible with our current technology — and the next millennium of it.

Properties

constellation: Pup
dist ly: 3396.397
dso type: OCl
mag: 6.2
messier: yes
messier number: 093
name: NGC 2447
radial velocity kms: 22
redshift: 0.0001
size arcmin: 15

Nearby objects

About NGC 2447

NGC 2447 is a rare cluster. It lies about 3,396.4 light-years from Earth, sits in the constellation Pup and shines at apparent magnitude 6.2.

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 2447 in the constellation Pup. At apparent magnitude 6.2, it is an easy target for binoculars.

Like any astronomical target, NGC 2447 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 2447 is a rare cluster

NGC 2447 scores 39 points on Spacedle's rarity scale, which places it in the rare tier. Another 11 points would lift it into a rarer tier.

That score comes from 6 science badges — Star cluster, Distant (over 1,000 light-years), Messier object, Bright deep-sky object, Open cluster and Big on the sky — 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.