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Trash variable star 5 EP

HD 103720

RA 179.1716° · Dec -2.7790° · star

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Score breakdown

· 1 badge
5 pts · Trash
Trash 15 pts → Common
  • Variable star +5
Total score 5

10 more points to reach Common.

Badges

  • Variable star · +5

Trivia

Could we get there?

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

Getting there

  • Aboard Voyager 1. ≈ 2.4 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 211.8 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 1356 years in a starship at a tenth of light speed.
  • Distance. 136 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1890.

Saying hello

  • Say hello. A radio message and its reply would take 271 years round-trip.

Properties

absmag
6.406
bv
0.945
constellation
Vir
dist ly
135.6157
mag
9.5
name
HD 103720
spect
K3V

About HD 103720

HD 103720 is a trash variable star. It lies about 135.6 light-years from Earth, sits in the constellation Vir, shines at apparent magnitude 9.5 and has spectral type K3V.

HD 103720 is a trash variable star worth 5 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 103720 in the constellation Vir. At apparent magnitude 9.5, a small backyard telescope will bring it into view.

Like any astronomical target, HD 103720 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 103720 is a trash variable star

HD 103720 scores 5 points on Spacedle's rarity scale, which places it in the trash tier. Another 10 points would lift it into a rarer tier.

That score comes from 1 science badge — Variable 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.