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Trash star 12 EP

HD 205510

RA 323.4238° · Dec 58.1959° · star

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Score breakdown

· 3 badges
12 pts · Trash
Trash 15 pts → Common
  • White A-type star +5
  • Never sets (northern circumpolar) +4
  • Star +3
Total score 12

3 more points to reach Common.

Badges

  • Star · +3
  • Never sets (northern circumpolar) · +4
  • White A-type star · +5

Trivia

What it actually is

  • Spectral class. Its spectrum reads A3p... — 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 7.9 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Cepheus.
  • Northern sky. It rides the northern half of the sky — an easier target the further north 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. ≈ 6.9 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 615.1 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
2.47
bv
0.249
constellation
Cep
dist ly
393.9081
luminosity
8.9536
mag
7.88
name
HD 205510
spect
A3p...

About HD 205510

HD 205510 is a trash star. It lies about 393.9 light-years from Earth, sits in the constellation Cep, shines at apparent magnitude 7.88 and has spectral type A3p....

Its spectrum reads A3p... — 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 205510 in the constellation Cep. At apparent magnitude 7.88, it is an easy target for binoculars.

Like any astronomical target, HD 205510 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 205510 is a trash star

HD 205510 scores 12 points on Spacedle's rarity scale, which places it in the trash tier. Another 3 points would lift it into a rarer tier.

That score comes from 3 science badges — Star, Never sets (northern circumpolar) 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.