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Trash star 14 EP

HD 188990

RA 301.9204° · Dec -78.8659° · star

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Score breakdown

· 4 badges
14 pts · Trash
Trash 15 pts → Common
  • Distant (over 1,000 light-years) +6
  • Star +3
  • Yellow-white F-type star +3
  • Main-sequence star +2
Total score 14

1 more point to reach Common.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • Yellow-white F-type star · +3
  • Main-sequence star · +2

Trivia

What it actually is

  • Spectral class. Its spectrum reads F0V — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
  • Where it is in life. It is on the main sequence, quietly fusing hydrogen in its core exactly as the Sun does.

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 it is just past naked-eye reach — ordinary binoculars will pull it in, 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 July — 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. ≈ 24.4 million years at Voyager 1's speed (17 km/s).

Properties

absmag
0.825
bv
0.398
constellation
Oct
dist ly
1387.8978
luminosity
40.738
mag
8.97
name
HD 188990
spect
F0V

Nearby objects

About HD 188990

HD 188990 is a trash star. It lies about 1,387.9 light-years from Earth, sits in the constellation Oct, shines at apparent magnitude 8.97 and has spectral type F0V.

Its spectrum reads F0V — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for HD 188990 in the constellation Oct. At apparent magnitude 8.97, it is an easy target for binoculars.

Like any astronomical target, HD 188990 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 188990 is a trash star

HD 188990 scores 14 points on Spacedle's rarity scale, which places it in the trash tier. Another 1 point would lift it into a rarer tier.

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