← Back to dex
Common star 19 EP

31 Ari

RA 39.1580° · Dec 12.4476° · star

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

Computing the sky for your location…

Score breakdown

· 5 badges
19 pts · Common
Common 22 pts → Uncommon
  • Naked-eye visible +8
  • Star +3
  • On the zodiac +3
  • Yellow-white F-type star +3
  • Main-sequence star +2
Total score 19

3 more points to reach Uncommon.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • On the zodiac · +3
  • Yellow-white F-type star · +3
  • Main-sequence star · +2

Trivia

What it actually is

  • Spectral class. Its spectrum reads F7V — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
  • Where it is in life. It is on the main sequence, quietly fusing hydrogen in its core exactly as the Sun does.

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 5.6 you can see it with your own eyes from a dark site, over in Aries.
  • 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 October — 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. ≈ 2 million years at Voyager 1's speed (17 km/s).

Properties

absmag
2.936
bv
0.516
constellation
Ari
dist ly
113.288
luminosity
5.8291
mag
5.64
name
31 Ari
spect
F7V

About 31 Ari

31 Ari is a common star. It lies about 113.3 light-years from Earth, sits in the constellation Ari, shines at apparent magnitude 5.64 and has spectral type F7V.

Its spectrum reads F7V — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for 31 Ari in the constellation Ari. At apparent magnitude 5.64, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 31 Ari 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 Ari is a common star

31 Ari scores 19 points on Spacedle's rarity scale, which places it in the common tier. Another 3 points would lift it into a rarer tier.

That score comes from 5 science badges — Star, Naked-eye visible, On the zodiac, Yellow-white F-type star and Main-sequence 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.