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Rare galaxy 40 EP

NGC 3623

RA 169.7330° · Dec 13.0924° · openngc

Real photograph of NGC 3623 📷 Real photo
ESA/Hubble & NASA
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Score breakdown

· 5 badges
40 pts · Rare
Rare 50 pts → Epic
  • Galaxy +14
  • Messier object +12
  • Outside our galaxy entirely +6
  • Spiral galaxy +5
  • On the zodiac +3
Total score 40

10 more points to reach Epic.

Badges

  • Galaxy · +14
  • Outside our galaxy entirely · +6
  • Messier object · +12
  • Spiral galaxy · +5
  • On the zodiac · +3

Trivia

Hard to believe

  • Messier object. One of the 110 showpieces of the Messier list — catalogued as M65.

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.
  • Spiral. A spiral galaxy. Those arms are not solid structures but traffic jams — density waves that stars drift into and out of as they orbit.

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 9.3 you'll want a small backyard telescope, over in Leo.
  • 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.

Properties

constellation
Leo
dist ly
35479848.098
dso type
G
hubble
Sa
mag
9.32
messier
yes
messier number
065
name
NGC 3623
radial velocity kms
761
redshift
0.0025
size arcmin
7.64
surface brightness
22.73

About NGC 3623

NGC 3623 is a rare galaxy. It lies about 35,479,848.1 light-years from Earth, sits in the constellation Leo and shines at apparent magnitude 9.32.

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 3623 in the constellation Leo. At apparent magnitude 9.32, a small backyard telescope will bring it into view.

Like any astronomical target, NGC 3623 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 3623 is a rare galaxy

NGC 3623 scores 40 points on Spacedle's rarity scale, which places it in the rare tier. Another 10 points would lift it into a rarer tier.

That score comes from 5 science badges — Galaxy, Outside our galaxy entirely, Messier object, Spiral 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.