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Uncommon galaxy 29 EP

NGC 4457

RA 187.2459° · Dec 3.5706° · openngc

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Score breakdown

· 4 badges
29 pts · Uncommon
Uncommon 34 pts → Rare
  • Galaxy +14
  • Outside our galaxy entirely +6
  • Lenticular galaxy (a disc with no arms) +6
  • On the zodiac +3
Total score 29

5 more points to reach Rare.

Badges

  • Galaxy · +14
  • Outside our galaxy entirely · +6
  • Lenticular galaxy (a disc with no arms) · +6
  • On the zodiac · +3

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.
  • Lenticular. A lenticular galaxy: it has a disc like a spiral but has run out of the gas needed to make new stars, leaving the arms behind.

Sense of scale

  • In perspective. Further than Andromeda, the most distant thing the unaided human eye can see.
  • 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 10.6 you'll want a small backyard telescope, over in Virgo.
  • 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 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
Vir
dist ly
41067225.7512
dso type
G
hubble
S0-a
mag
10.57
name
NGC 4457
radial velocity kms
880
redshift
0.0029
size arcmin
2.79
surface brightness
22.34

About NGC 4457

NGC 4457 is an uncommon galaxy. It lies about 41,067,225.8 light-years from Earth, sits in the constellation Vir and shines at apparent magnitude 10.57.

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 4457 in the constellation Vir. At apparent magnitude 10.57, a small backyard telescope will bring it into view.

Like any astronomical target, NGC 4457 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 4457 is an uncommon galaxy

NGC 4457 scores 29 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 5 points would lift it into a rarer tier.

That score comes from 4 science badges — Galaxy, Outside our galaxy entirely, Lenticular galaxy (a disc with no arms) and On the zodiac — 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.