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Uncommon star 30 EP

HR 5133

RA 204.4289° · Dec 50.7148° · star

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Score breakdown

· 6 badges
30 pts · Uncommon
Uncommon 34 pts → Rare
  • Deep red star +8
  • Distant (over 1,000 light-years) +6
  • Giant star +6
  • Never sets (northern circumpolar) +4
  • Star +3
  • Yellow-white F-type star +3
Total score 30

4 more points to reach Rare.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • Never sets (northern circumpolar) · +4
  • Yellow-white F-type star · +3
  • Giant star · +6
  • Deep red star · +8

Trivia

What it actually is

  • Spectral class. Its spectrum reads F3III comp — an F-type star — a little hotter, whiter and shorter-lived than the 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 6.5 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Ursa Major.
  • 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 April — that's when to go looking.

Could we get there?

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

Getting there

  • Aboard Voyager 1. ≈ 24.9 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-1.681
bv
1.555
constellation
UMa
dist ly
1418.0695
luminosity
409.6378
mag
6.51
name
HR 5133
spect
F3III comp

About HR 5133

HR 5133 is an uncommon star. It lies about 1,418.1 light-years from Earth, sits in the constellation UMa, shines at apparent magnitude 6.51 and has spectral type F3III comp.

Its spectrum reads F3III comp — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for HR 5133 in the constellation UMa. At apparent magnitude 6.51, it is an easy target for binoculars.

Like any astronomical target, HR 5133 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 5133 is an uncommon star

HR 5133 scores 30 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 4 points would lift it into a rarer tier.

That score comes from 6 science badges — Star, Distant (over 1,000 light-years), Never sets (northern circumpolar), Yellow-white F-type star, Giant star and Deep red 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.