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Uncommon star 24 EP

24 Boo

RA 217.1580° · Dec 49.8449° · 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 G3IV — 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. 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 Boötes.
  • 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. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 5.7 million years at Voyager 1's speed (17 km/s).

Properties

absmag
0.58
bv
0.864
constellation
Boo
dist ly
326.156
luminosity
51.0505
mag
5.58
name
24 Boo
spect
G3IV

About 24 Boo

24 Boo is an uncommon star. It lies about 326.2 light-years from Earth, sits in the constellation Boo, shines at apparent magnitude 5.58 and has spectral type G3IV.

Its spectrum reads G3IV — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for 24 Boo in the constellation Boo. At apparent magnitude 5.58, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 24 Boo 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 24 Boo is an uncommon star

24 Boo 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.