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Trash star 12 EP

HD 15161

RA 34.0992° · Dec -82.5542° · star

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Score breakdown

· 3 badges
12 pts · Trash
Trash 15 pts → Common
  • Giant star +6
  • Star +3
  • Yellow-white F-type star +3
Total score 12

3 more points to reach Common.

Badges

  • Star · +3
  • Yellow-white F-type star · +3
  • Giant star · +6

Trivia

What it actually is

  • Spectral class. Its spectrum reads F6/F7III/IV — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

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 9.2 you'll want a small backyard telescope, over in Octans.
  • Southern sky only. So far south it never rises for most of the northern hemisphere. To see it you'd have to travel to Chile, South Africa or Australia.
  • 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. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 13.5 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 1.2 million years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
2.307
bv
0.505
constellation
Oct
dist ly
765.6245
luminosity
10.404
mag
9.16
name
HD 15161
spect
F6/F7III/IV

About HD 15161

HD 15161 is a trash star. It lies about 765.6 light-years from Earth, sits in the constellation Oct, shines at apparent magnitude 9.16 and has spectral type F6/F7III/IV.

Its spectrum reads F6/F7III/IV — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for HD 15161 in the constellation Oct. At apparent magnitude 9.16, a small backyard telescope will bring it into view.

Like any astronomical target, HD 15161 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 15161 is a trash star

HD 15161 scores 12 points on Spacedle's rarity scale, which places it in the trash tier. Another 3 points would lift it into a rarer tier.

That score comes from 3 science badges — Star, Yellow-white F-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.