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Uncommon galaxy 28 EP

NGC 4291

RA 185.0758° · Dec 75.3708° · openngc

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Score breakdown

· 4 badges
28 pts · Uncommon
Uncommon 34 pts → Rare
  • Galaxy +14
  • Outside our galaxy entirely +6
  • Elliptical galaxy +4
  • Never sets (northern circumpolar) +4
Total score 28

6 more points to reach Rare.

Badges

  • Galaxy · +14
  • Outside our galaxy entirely · +6
  • Elliptical galaxy · +4
  • Never sets (northern circumpolar) · +4

Trivia

What it actually is

  • What it actually is. A galaxy: a gravitationally bound city of stars, gas and dark matter, turning so slowly that a single rotation takes hundreds of millions of years.
  • Elliptical. An elliptical galaxy: a smooth swarm of stars on randomly tilted orbits, with almost no cold gas left to build anything new.

Sense of scale

  • In perspective. Deep in the extragalactic distance — further than the entire Virgo Cluster of galaxies.
  • Scale. Home to hundreds of billions of stars — a universe unto itself, and every one of those points of light could have planets.

Find it in the sky

  • How to spot it. At magnitude 11.4 you'll want a small backyard telescope, over in Draco.
  • Never sets. So far north that from Britain, Canada or northern Europe it never dips below the horizon — it is up every clear night of the year.
  • Best time of year. It stands highest in the middle of the night around March — that's when to go looking.

Could we get there?

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

Properties

constellation
Dra
dist ly
83028431.9269
dso type
G
hubble
E
mag
11.42
name
NGC 4291
radial velocity kms
1777
redshift
0.0059
size arcmin
1.93
surface brightness
22.68

About NGC 4291

NGC 4291 is an uncommon galaxy. It lies about 83,028,431.9 light-years from Earth, sits in the constellation Dra and shines at apparent magnitude 11.42.

A galaxy: a gravitationally bound city of stars, gas and dark matter, turning so slowly that a single rotation takes hundreds of millions of years.

How to see it

Look for NGC 4291 in the constellation Dra. At apparent magnitude 11.42, a small backyard telescope will bring it into view.

Like any astronomical target, NGC 4291 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 4291 is an uncommon galaxy

NGC 4291 scores 28 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 6 points would lift it into a rarer tier.

That score comes from 4 science badges — Galaxy, Outside our galaxy entirely, Elliptical galaxy and Never sets (northern circumpolar) — 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.