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Common star 21 EP

15Rho CrB

RA 240.2612° · Dec 33.3035° · star

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Score breakdown

· 4 badges
21 pts · Common
Common 22 pts → Uncommon
  • Naked-eye visible +8
  • Sun-like G-type star +8
  • Star +3
  • Main-sequence star +2
Total score 21

1 more point to reach Uncommon.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Sun-like G-type star · +8
  • Main-sequence star · +2

Trivia

What it actually is

  • Spectral class. Its spectrum reads G2V — a G-type star: the very same spectral class as our own 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. 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 5.4 you can see it with your own eyes from a dark site, over in Corona Borealis.
  • 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 May — 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. ≈ 987.8 thousand years at Voyager 1's speed (17 km/s).

Properties

absmag
4.208
bv
0.612
constellation
CrB
dist ly
56.2143
luminosity
1.8063
mag
5.39
name
15Rho CrB
spect
G2V

About 15Rho CrB

15Rho CrB is a common star. It lies about 56.2 light-years from Earth, sits in the constellation CrB, shines at apparent magnitude 5.39 and has spectral type G2V.

Its spectrum reads G2V — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for 15Rho CrB in the constellation CrB. At apparent magnitude 5.39, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 15Rho CrB 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 15Rho CrB is a common star

15Rho CrB scores 21 points on Spacedle's rarity scale, which places it in the common tier. Another 1 point would lift it into a rarer tier.

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