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Trash star 3 EP

HD 20308

RA 48.8819° · Dec -16.5549° · 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. ≈ 14.4 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 1.3 million years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 8216 years in a starship at a tenth of light speed.
  • Distance. 822 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1204.

Saying hello

  • Say hello. A radio message and its reply would take 1643 years round-trip.

Properties

absmag
1.884
bv
0.288
constellation
Eri
dist ly
821.5517
mag
8.89
name
HD 20308
spect
A7m...

About HD 20308

HD 20308 is a trash star. It lies about 821.6 light-years from Earth, sits in the constellation Eri, shines at apparent magnitude 8.89 and has spectral type A7m....

HD 20308 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 20308 in the constellation Eri. At apparent magnitude 8.89, it is an easy target for binoculars.

Like any astronomical target, HD 20308 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 20308 is a trash star

HD 20308 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.