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Common star 17 EP

HD 178715

RA 287.3267° · Dec 11.6268° · star

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Score breakdown

· 3 badges
17 pts · Common
Common 22 pts → Uncommon
  • Sun-like G-type star +8
  • Giant star +6
  • Star +3
Total score 17

5 more points to reach Uncommon.

Badges

  • Star · +3
  • 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 7.3 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Aquila.
  • 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 July — 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. ≈ 14.3 million years at Voyager 1's speed (17 km/s).

Properties

absmag
0.281
bv
0.912
constellation
Aql
dist ly
811.3333
luminosity
67.2357
mag
7.26
name
HD 178715
spect
G5III

About HD 178715

HD 178715 is a common star. It lies about 811.3 light-years from Earth, sits in the constellation Aql, shines at apparent magnitude 7.26 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 HD 178715 in the constellation Aql. At apparent magnitude 7.26, it is an easy target for binoculars.

Like any astronomical target, HD 178715 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 HD 178715 is a common star

HD 178715 scores 17 points on Spacedle's rarity scale, which places it in the common tier. Another 5 points would lift it into a rarer tier.

That score comes from 3 science badges — Star, 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.