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Trash star 8 EP

HD 77945

RA 135.3324° · Dec -68.9267° · star

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Score breakdown

· 3 badges
8 pts · Trash
Trash 15 pts → Common
  • Star +3
  • Yellow-white F-type star +3
  • Main-sequence star +2
Total score 8

7 more points to reach Common.

Badges

  • Star · +3
  • Yellow-white F-type star · +3
  • Main-sequence star · +2

Trivia

What it actually is

  • Spectral class. Its spectrum reads F8/G0V — 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 9.3 you'll want a small backyard telescope, over in Volans.
  • 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 February — 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. ≈ 8.9 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 787.1 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
3.355
bv
0.515
constellation
Vol
dist ly
504.1051
luminosity
3.9628
mag
9.3
name
HD 77945
spect
F8/G0V

About HD 77945

HD 77945 is a trash star. It lies about 504.1 light-years from Earth, sits in the constellation Vol, shines at apparent magnitude 9.3 and has spectral type F8/G0V.

Its spectrum reads F8/G0V — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for HD 77945 in the constellation Vol. At apparent magnitude 9.3, a small backyard telescope will bring it into view.

Like any astronomical target, HD 77945 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 77945 is a trash star

HD 77945 scores 8 points on Spacedle's rarity scale, which places it in the trash tier. Another 7 points would lift it into a rarer tier.

That score comes from 3 science badges — Star, Yellow-white F-type star and Main-sequence 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.