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Uncommon star 25 EP

The CrA

RA 278.3757° · Dec -42.3125° · star

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Score breakdown

· 4 badges
25 pts · Uncommon
Uncommon 34 pts → Rare
  • Naked-eye visible +8
  • Sun-like G-type star +8
  • Giant star +6
  • Star +3
Total score 25

9 more points to reach Rare.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Sun-like G-type star · +8
  • Giant star · +6

Trivia

What it actually is

  • Spectral class. Its spectrum reads G5III — a G-type star: the very same spectral class as our own Sun.
  • Where it is in life. It is a giant. It has already exhausted its core hydrogen and swollen up enormously in response.

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 4.6 you can see it with your own eyes from a dark site, over in Corona Australis.
  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around June — 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. ≈ 9.8 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-1.544
bv
0.994
constellation
CrA
dist ly
557.5317
luminosity
361.0771
mag
4.62
name
The CrA
spect
G5III

About The CrA

The CrA is an uncommon star. It lies about 557.5 light-years from Earth, sits in the constellation CrA, shines at apparent magnitude 4.62 and has spectral type G5III.

Its spectrum reads G5III — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for The CrA in the constellation CrA. At apparent magnitude 4.62, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, The CrA 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 The CrA is an uncommon star

The CrA scores 25 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 9 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 Giant 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.