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Uncommon star 25 EP

71 Oph

RA 271.8265° · Dec 8.7339° · 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 G8III-IV — 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 Ophiuchus.
  • Seen from everywhere. It sits almost on the celestial equator, so it can be seen from essentially anywhere on Earth.
  • 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. ≈ 4.8 million years at Voyager 1's speed (17 km/s).

Properties

absmag
0.029
bv
0.951
constellation
Oph
dist ly
272.7056
luminosity
84.8008
mag
4.64
name
71 Oph
spect
G8III-IV

About 71 Oph

71 Oph is an uncommon star. It lies about 272.7 light-years from Earth, sits in the constellation Oph, shines at apparent magnitude 4.64 and has spectral type G8III-IV.

Its spectrum reads G8III-IV — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for 71 Oph in the constellation Oph. At apparent magnitude 4.64, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 71 Oph 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 71 Oph is an uncommon star

71 Oph 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.