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Trash star 3 EP

HD 137423

RA 231.0274° · Dec 48.7704° · 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. ≈ 15.6 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 1.4 million years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 8863 years in a starship at a tenth of light speed.
  • Distance. 886 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1140.

Saying hello

  • Say hello. A radio message and its reply would take 1773 years round-trip.

Properties

absmag
2.259
bv
0.426
constellation
Boo
dist ly
886.2934
mag
9.43
name
HD 137423
spect
G5

About HD 137423

HD 137423 is a trash star. It lies about 886.3 light-years from Earth, sits in the constellation Boo, shines at apparent magnitude 9.43 and has spectral type G5.

HD 137423 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 137423 in the constellation Boo. At apparent magnitude 9.43, a small backyard telescope will bring it into view.

Like any astronomical target, HD 137423 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 137423 is a trash star

HD 137423 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.