← Back to dex
Uncommon star 29 EP

HR 5091

RA 201.7381° · Dec 78.6439° · star

Loading sky survey…
🌌 View in 3D star map
Tonight’s visibility

Computing the sky for your location…

Score breakdown

· 5 badges
29 pts · Uncommon
Uncommon 34 pts → Rare
  • Naked-eye visible +8
  • Sun-like G-type star +8
  • Giant star +6
  • Never sets (northern circumpolar) +4
  • Star +3
Total score 29

5 more points to reach Rare.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Never sets (northern circumpolar) · +4
  • Sun-like G-type star · +8
  • Giant star · +6

Trivia

What it actually is

  • Spectral class. Its spectrum reads G2.5IIIb — a G-type star: the very same spectral class as our own Sun.
  • Where it is in life. It is a giant. It has already exhausted its core hydrogen and swollen up enormously in response.

Sense of scale

  • In perspective. Far away by human standards, yet still a local address inside the Milky Way's spiral arms.

Find it in the sky

  • How to spot it. At magnitude 5.7 you can see it with your own eyes from a dark site, over in Camelopardalis.
  • Never sets. So far north that from Britain, Canada or northern Europe it never dips below the horizon — it is up every clear night of the year.
  • Best time of year. It stands highest in the middle of the night around April — that's when to go looking.

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 5 million years at Voyager 1's speed (17 km/s).

Properties

absmag
1.026
bv
0.769
constellation
Cam
dist ly
285.8509
luminosity
33.8532
mag
5.74
name
HR 5091
spect
G2.5IIIb

About HR 5091

HR 5091 is an uncommon star. It lies about 285.9 light-years from Earth, sits in the constellation Cam, shines at apparent magnitude 5.74 and has spectral type G2.5IIIb.

Its spectrum reads G2.5IIIb — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HR 5091 in the constellation Cam. At apparent magnitude 5.74, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, HR 5091 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 HR 5091 is an uncommon star

HR 5091 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 5 science badges — Star, Naked-eye visible, Never sets (northern circumpolar), Sun-like G-type star and Giant star — 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.