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Rare galaxy 37 EP

NGC 7649

RA 351.0837° · Dec 14.6471° · openngc

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Score breakdown

· 5 badges
37 pts · Rare
Rare 50 pts → Epic
  • Galaxy +14
  • Ghostly low surface brightness +10
  • Outside our galaxy entirely +6
  • Elliptical galaxy +4
  • Faint fuzzy (mag > 13) +3
Total score 37

13 more points to reach Epic.

Badges

  • Galaxy · +14
  • Outside our galaxy entirely · +6
  • Elliptical galaxy · +4
  • Ghostly low surface brightness · +10
  • Faint fuzzy (mag > 13) · +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.
  • 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 13.6 it is far too faint for the eye: this one belongs to cameras and long exposures, over in Pegasus.
  • 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 September — that's when to go looking.

Could we get there?

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

Properties

constellation
Peg
dist ly
581226960.3768
dso type
G
hubble
E
mag
13.57
name
NGC 7649
radial velocity kms
12215
redshift
0.0416
size arcmin
1.63
surface brightness
25.25

About NGC 7649

NGC 7649 is a rare galaxy. It lies about 581,226,960.4 light-years from Earth, sits in the constellation Peg and shines at apparent magnitude 13.57.

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 7649 in the constellation Peg. At apparent magnitude 13.57, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, NGC 7649 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 7649 is a rare galaxy

NGC 7649 scores 37 points on Spacedle's rarity scale, which places it in the rare tier. Another 13 points would lift it into a rarer tier.

That score comes from 5 science badges — Galaxy, Outside our galaxy entirely, Elliptical galaxy, Ghostly low surface brightness and Faint fuzzy (mag > 13) — 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.