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Rare galaxy 35 EP

NGC 5798

RA 224.4082° · Dec 29.9685° · openngc

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Score breakdown

· 4 badges
35 pts · Rare
Rare 50 pts → Epic
  • Galaxy +14
  • Irregular galaxy (no shape at all) +12
  • Outside our galaxy entirely +6
  • Faint fuzzy (mag > 13) +3
Total score 35

15 more points to reach Epic.

Badges

  • Galaxy · +14
  • Outside our galaxy entirely · +6
  • Irregular galaxy (no shape at all) · +12
  • 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.
  • Irregular. An irregular galaxy — no disc, no bulge, no symmetry. Most have been pulled out of shape by a larger neighbour's gravity.

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 13.4 it is far too faint for the eye: this one belongs to cameras and long exposures, over in Boötes.
  • 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 May — that's when to go looking.

Could we get there?

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

Properties

constellation
Boo
dist ly
83447485.2509
dso type
G
hubble
I
mag
13.43
name
NGC 5798
radial velocity kms
1786
redshift
0.006
size arcmin
1.24
surface brightness
22.28

About NGC 5798

NGC 5798 is a rare galaxy. It lies about 83,447,485.3 light-years from Earth, sits in the constellation Boo and shines at apparent magnitude 13.43.

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 5798 in the constellation Boo. At apparent magnitude 13.43, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, NGC 5798 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 5798 is a rare galaxy

NGC 5798 scores 35 points on Spacedle's rarity scale, which places it in the rare tier. Another 15 points would lift it into a rarer tier.

That score comes from 4 science badges — Galaxy, Outside our galaxy entirely, Irregular galaxy (no shape at all) 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.