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Trash star 3 EP

HD 218531

RA 347.2374° · Dec -20.8619° · star

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Score breakdown

· 1 badge
3 pts · Trash
Trash 15 pts → Common
  • Star +3
Total score 3

12 more points to reach Common.

Badges

  • Star · +3

Trivia

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 4.3 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 382.6 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 2450 years in a starship at a tenth of light speed.
  • Distance. 245 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1781.

Saying hello

  • Say hello. A radio message and its reply would take 490 years round-trip.

Properties

absmag
5.211
bv
0.752
constellation
Aqr
dist ly
245.0459
mag
9.59
name
HD 218531
spect
G5/G6V

About HD 218531

HD 218531 is a trash star. It lies about 245 light-years from Earth, sits in the constellation Aqr, shines at apparent magnitude 9.59 and has spectral type G5/G6V.

HD 218531 is a trash star worth 3 points across 1 science badge. Explore its facts, badges and place on the sky map, then add it to your dex on Spacedle.

How to see it

Look for HD 218531 in the constellation Aqr. At apparent magnitude 9.59, a small backyard telescope will bring it into view.

Like any astronomical target, HD 218531 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 218531 is a trash star

HD 218531 scores 3 points on Spacedle's rarity scale, which places it in the trash tier. Another 12 points would lift it into a rarer tier.

That score comes from 1 science badge — 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.

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Sky imagery and survey data courtesy of Aladin Lite & CDS, Strasbourg. Object data from the NASA Exoplanet Archive, JPL Small-Body Database, and the ATNF Pulsar Catalogue.