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Trash star 14 EP

HD 21993

RA 53.2128° · Dec 5.2546° · star

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Score breakdown

· 3 badges
14 pts · Trash
Trash 15 pts → Common
  • Sun-like G-type star +8
  • Star +3
  • On the zodiac +3
Total score 14

1 more point to reach Common.

Badges

  • Star · +3
  • On the zodiac · +3
  • Sun-like G-type star · +8

Trivia

What it actually is

  • Spectral class. Its spectrum reads G5 — a G-type star: the very same spectral class as our own 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 7.3 it is just past naked-eye reach — ordinary binoculars will pull it in, 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. ≈ 9.1 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 810.9 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
1.32
bv
0.965
constellation
Tau
dist ly
519.3568
luminosity
25.8226
mag
7.33
name
HD 21993
spect
G5

About HD 21993

HD 21993 is a trash star. It lies about 519.4 light-years from Earth, sits in the constellation Tau, shines at apparent magnitude 7.33 and has spectral type G5.

Its spectrum reads G5 — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HD 21993 in the constellation Tau. At apparent magnitude 7.33, it is an easy target for binoculars.

Like any astronomical target, HD 21993 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 21993 is a trash star

HD 21993 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 3 science badges — Star, On the zodiac and Sun-like G-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.