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Trash star 6 EP

HD 208139

RA 328.8134° · Dec -38.9951° · star

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Score breakdown

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

9 more points to reach Common.

Badges

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

Trivia

What it actually is

  • Spectral class. Its spectrum reads Fm — 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 7.6 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Grus.
  • 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 August — 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. ≈ 6.5 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 580 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
2.317
bv
0.319
constellation
Gru
dist ly
371.476
luminosity
10.3086
mag
7.6
name
HD 208139
spect
Fm

About HD 208139

HD 208139 is a trash star. It lies about 371.5 light-years from Earth, sits in the constellation Gru, shines at apparent magnitude 7.6 and has spectral type Fm.

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

How to see it

Look for HD 208139 in the constellation Gru. At apparent magnitude 7.6, it is an easy target for binoculars.

Like any astronomical target, HD 208139 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 208139 is a trash star

HD 208139 scores 6 points on Spacedle's rarity scale, which places it in the trash tier. Another 9 points would lift it into a rarer tier.

That score comes from 2 science badges — Star and Yellow-white F-type 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.