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Trash star 13 EP

HD 165121

RA 271.5194° · Dec -37.4331° · star

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Score breakdown

· 2 badges
13 pts · Trash
Trash 15 pts → Common
  • Distant (>1000 ly) +10
  • Star +3
Total score 13

2 more points to reach Common.

Badges

  • Star · +3
  • Distant (>1000 ly) · +10

Trivia

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 18 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 1.6 million years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 10.2 thousand years in a starship at a tenth of light speed.
  • Distance. 1022 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1004.

Saying hello

  • Say hello. A radio message and its reply would take 2045 years round-trip.

Properties

absmag
0.159
bv
1.223
constellation
CrA
dist ly
1022.4325
mag
7.64
name
HD 165121
spect
K1III

About HD 165121

HD 165121 is a trash star. It lies about 1,022.4 light-years from Earth, sits in the constellation CrA, shines at apparent magnitude 7.64 and has spectral type K1III.

HD 165121 is a trash star worth 13 points across 2 science badges. 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 165121 in the constellation CrA. At apparent magnitude 7.64, it is an easy target for binoculars.

Like any astronomical target, HD 165121 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 165121 is a trash star

HD 165121 scores 13 points on Spacedle's rarity scale, which places it in the trash tier. Another 2 points would lift it into a rarer tier.

That score comes from 2 science badges — Star and Distant (>1000 ly) — 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.