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Trash star 8 EP

HD 23137

RA 55.0057° · Dec -55.5478° · star

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Score breakdown

· 2 badges
8 pts · Trash
Trash 15 pts → Common
  • White A-type star +5
  • Star +3
Total score 8

7 more points to reach Common.

Badges

  • Star · +3
  • White A-type star · +5

Trivia

What it actually is

  • Spectral class. Its spectrum reads A4:m... — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.

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 7.8 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Reticulum.
  • 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 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. ≈ 8.1 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 716.3 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
2.099
bv
0.253
constellation
Ret
dist ly
458.7286
luminosity
12.6009
mag
7.84
name
HD 23137
spect
A4:m...

About HD 23137

HD 23137 is a trash star. It lies about 458.7 light-years from Earth, sits in the constellation Ret, shines at apparent magnitude 7.84 and has spectral type A4:m....

Its spectrum reads A4:m... — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.

How to see it

Look for HD 23137 in the constellation Ret. At apparent magnitude 7.84, it is an easy target for binoculars.

Like any astronomical target, HD 23137 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 23137 is a trash star

HD 23137 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 2 science badges — Star and White A-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.