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Uncommon galaxy 33 EP

NGC 4552

RA 188.9159° · Dec 12.5563° · openngc

Real photograph of NGC 4552 📷 Real photo
ESA/Hubble and NASA (CC BY 4.0)
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Score breakdown

· 4 badges
33 pts · Uncommon
Uncommon 34 pts → Rare
  • Galaxy +14
  • Messier object +12
  • Elliptical galaxy +4
  • On the zodiac +3
Total score 33

1 more point to reach Rare.

Badges

  • Galaxy · +14
  • Messier object · +12
  • Elliptical galaxy · +4
  • On the zodiac · +3

Trivia

Hard to believe

  • Messier object. One of the 110 showpieces of the Messier list — catalogued as M89.

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

  • 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 10.1 you'll want a small backyard telescope, over in Virgo.
  • 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 March — that's when to go looking.

Its true colour

  • Red and dead. Ellipticals glow reddish because every short-lived blue star they ever had has already died. Astronomers call them 'red and dead'.

Properties

constellation
Vir
dso type
G
hubble
E
mag
10.08
messier
yes
messier number
089
name
NGC 4552
radial velocity kms
274
redshift
0.0009
size arcmin
8.13
surface brightness
24.11

About NGC 4552

NGC 4552 is an uncommon galaxy. It sits in the constellation Vir and shines at apparent magnitude 10.08.

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 4552 in the constellation Vir. At apparent magnitude 10.08, a small backyard telescope will bring it into view.

Like any astronomical target, NGC 4552 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 4552 is an uncommon galaxy

NGC 4552 scores 33 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 1 point would lift it into a rarer tier.

That score comes from 4 science badges — Galaxy, Messier object, Elliptical galaxy 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.