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Uncommon star 23 EP

HD 15087

RA 36.0155° · Dec -52.8105° · star

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Score breakdown

· 4 badges
23 pts · Uncommon
Uncommon 34 pts → Rare
  • Sun-like G-type star +8
  • Distant (over 1,000 light-years) +6
  • Giant star +6
  • Star +3
Total score 23

11 more points to reach Rare.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • 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 8.1 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Eridanus.
  • 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 October — that's when to go looking.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 18.1 million years at Voyager 1's speed (17 km/s).

Properties

absmag
0.605
bv
0.87
constellation
Eri
dist ly
1028.8832
luminosity
49.8884
mag
8.1
name
HD 15087
spect
G5III

About HD 15087

HD 15087 is an uncommon star. It lies about 1,028.9 light-years from Earth, sits in the constellation Eri, shines at apparent magnitude 8.1 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 15087 in the constellation Eri. At apparent magnitude 8.1, it is an easy target for binoculars.

Like any astronomical target, HD 15087 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 15087 is an uncommon star

HD 15087 scores 23 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 11 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, Distant (over 1,000 light-years), 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.