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Uncommon star 24 EP

31 Aql

RA 291.2425° · Dec 11.9444° · star

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Score breakdown

· 4 badges
24 pts · Uncommon
Uncommon 34 pts → Rare
  • Naked-eye visible +8
  • Sun-like G-type star +8
  • Subgiant (leaving the main sequence) +5
  • Star +3
Total score 24

10 more points to reach Rare.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Sun-like G-type star · +8
  • Subgiant (leaving the main sequence) · +5

Trivia

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 5.2 you can see it with your own eyes from a dark site, over in Aquila.
  • 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 July — 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. ≈ 869.9 thousand years at Voyager 1's speed (17 km/s).

Properties

absmag
4.264
bv
0.761
constellation
Aql
dist ly
49.5
luminosity
1.7155
mag
5.17
name
31 Aql
spect
G8IVvar

About 31 Aql

31 Aql is an uncommon star. It lies about 49.5 light-years from Earth, sits in the constellation Aql, shines at apparent magnitude 5.17 and has spectral type G8IVvar.

Its spectrum reads G8IVvar — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for 31 Aql in the constellation Aql. At apparent magnitude 5.17, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 31 Aql 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 31 Aql is an uncommon star

31 Aql scores 24 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 10 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, Naked-eye visible, 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.