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Rare star 38 EP

Alshain

RA 298.8283° · Dec 6.4068° · star

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Score breakdown

· 6 badges
38 pts · Rare
Rare 50 pts → Epic
  • Naked-eye visible +8
  • Has a proper name +8
  • Sun-like G-type star +8
  • Binary star +6
  • Subgiant (leaving the main sequence) +5
  • Star +3
Total score 38

12 more points to reach Epic.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Binary star · +6
  • Has a proper name · +8
  • Sun-like G-type star · +8
  • Subgiant (leaving the main sequence) · +5

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 G8IVvar — a G-type star: the very same spectral class as our own Sun.
  • Where it is in life. It is a subgiant, caught in the act of leaving the main sequence as the hydrogen in its core runs out.

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 3.7 you can see it with your own eyes from a dark site, over in Aquila.
  • Seen from everywhere. It sits almost on the celestial equator, so it can be seen from essentially anywhere on Earth.
  • Best time of year. It stands highest in the middle of the night around July — that's when to go looking.

Could we get there?

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

Properties

absmag
3.027
binary
yes
bv
0.855
constellation
Aql
dist ly
44.6788
luminosity
5.3604
mag
3.71
name
Alshain
named
yes
spect
G8IVvar

About Alshain

Alshain is a rare star. It lies about 44.7 light-years from Earth, sits in the constellation Aql, shines at apparent magnitude 3.71 and has spectral type G8IVvar.

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 Alshain in the constellation Aql. At apparent magnitude 3.71, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, Alshain 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 Alshain is a rare star

Alshain scores 38 points on Spacedle's rarity scale, which places it in the rare tier. Another 12 points would lift it into a rarer tier.

That score comes from 6 science badges — Star, Naked-eye visible, Binary star, Has a proper name, Sun-like G-type star and Subgiant (leaving the main sequence) — 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.