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Rare star 43 EP

Athebyne

RA 245.9979° · Dec 61.5142° · star

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Score breakdown

· 7 badges
43 pts · Rare
Rare 50 pts → Epic
  • Naked-eye visible +8
  • Has a proper name +8
  • Sun-like G-type star +8
  • Binary star +6
  • Giant star +6
  • Never sets (northern circumpolar) +4
  • Star +3
Total score 43

7 more points to reach Epic.

Badges

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

Trivia

What makes it special

  • Not one star but two. It is a binary: two stars orbiting a shared centre of mass. More than half of all the 'stars' you can see are actually multiple systems.

What it actually is

  • Spectral class. Its spectrum reads G8III — 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. Inside our stellar backyard: every radio broadcast humanity has ever made has already swept past it.

Find it in the sky

  • How to spot it. At magnitude 2.7 you can see it with your own eyes from a dark site, over in Draco.
  • 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 May — that's when to go looking.

Could we get there?

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

Properties

absmag
0.476
binary
yes
bv
0.91
constellation
Dra
dist ly
92.0823
luminosity
56.1824
mag
2.73
name
Athebyne
named
yes
spect
G8III

About Athebyne

Athebyne is a rare star. It lies about 92.1 light-years from Earth, sits in the constellation Dra, shines at apparent magnitude 2.73 and has spectral type G8III.

It is a binary: two stars orbiting a shared centre of mass. More than half of all the 'stars' you can see are actually multiple systems.

How to see it

Look for Athebyne in the constellation Dra. At apparent magnitude 2.73, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, Athebyne 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 Athebyne is a rare star

Athebyne scores 43 points on Spacedle's rarity scale, which places it in the rare tier. Another 7 points would lift it into a rarer tier.

That score comes from 7 science badges — Star, Naked-eye visible, Binary star, Has a proper name, 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.