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Trash star 9 EP

HIP 21000

RA 67.5524° · Dec 5.2988° · star

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Score breakdown

· 3 badges
9 pts · Trash
Trash 15 pts → Common
  • Star +3
  • On the zodiac +3
  • Yellow-white F-type star +3
Total score 9

6 more points to reach Common.

Badges

  • Star · +3
  • On the zodiac · +3
  • Yellow-white F-type star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads F8+... — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

Sense of scale

  • In perspective. Inside our stellar backyard: every radio broadcast humanity has ever made has already swept past it.

Find it in the sky

  • How to spot it. At magnitude 9.8 you'll want a small backyard telescope, over in Taurus.
  • Seen from everywhere. It sits almost on the celestial equator, so it can be seen from essentially anywhere on Earth.
  • Best time of year. It stands highest in the middle of the night around November — 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. ≈ 611.9 thousand years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 54.4 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
9.688
bv
0.6
constellation
Tau
dist ly
34.8198
luminosity
0.0116
mag
9.83
name
HIP 21000
spect
F8+...

About HIP 21000

HIP 21000 is a trash star. It lies about 34.8 light-years from Earth, sits in the constellation Tau, shines at apparent magnitude 9.83 and has spectral type F8+....

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

How to see it

Look for HIP 21000 in the constellation Tau. At apparent magnitude 9.83, a small backyard telescope will bring it into view.

Like any astronomical target, HIP 21000 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 HIP 21000 is a trash star

HIP 21000 scores 9 points on Spacedle's rarity scale, which places it in the trash tier. Another 6 points would lift it into a rarer tier.

That score comes from 3 science badges — Star, On the zodiac 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.