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Rare nebula 48 EP

IC 5217

RA 335.9821° · Dec 50.9667° · openngc

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Score breakdown

· 5 badges
48 pts · Rare
Rare 50 pts → Epic
  • Planetary nebula (a dying star's shell) +12
  • Its dying star is still visible +12
  • Coming towards us +10
  • Nebula +8
  • Distant (over 1,000 light-years) +6
Total score 48

2 more points to reach Epic.

Badges

  • Nebula · +8
  • Distant (over 1,000 light-years) · +6
  • Planetary nebula (a dying star's shell) · +12
  • Coming towards us · +10
  • Its dying star is still visible · +12

Trivia

What it actually is

  • What it actually is. A planetary nebula: the shed outer atmosphere of a dying Sun-like star, lit from within by the naked stellar core left behind.

Sense of scale

  • In perspective. Far away by human standards, yet still a local address inside the Milky Way's spiral arms.

Find it in the sky

  • How to spot it. At magnitude 11.3 you'll want a small backyard telescope, over in Lacerta.
  • Northern sky. It rides the northern half of the sky — an easier target the further north you are.
  • Best time of year. It stands highest in the middle of the night around August — 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. ≈ 84 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 7.5 million years even at the Parker Solar Probe's 192 km/s.

Properties

central star mag
15.5
constellation
Lac
dist ly
4777.4425
dso type
PN
mag
11.3
name
IC 5217
radial velocity kms
-99
size arcmin
0.11

About IC 5217

IC 5217 is a rare nebula. It lies about 4,777.4 light-years from Earth, sits in the constellation Lac and shines at apparent magnitude 11.3.

A planetary nebula: the shed outer atmosphere of a dying Sun-like star, lit from within by the naked stellar core left behind.

How to see it

Look for IC 5217 in the constellation Lac. At apparent magnitude 11.3, a small backyard telescope will bring it into view.

Like any astronomical target, IC 5217 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 IC 5217 is a rare nebula

IC 5217 scores 48 points on Spacedle's rarity scale, which places it in the rare tier. Another 2 points would lift it into a rarer tier.

That score comes from 5 science badges — Nebula, Distant (over 1,000 light-years), Planetary nebula (a dying star's shell), Coming towards us and Its dying star is still visible — 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.