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Trash variable star 5 EP

HD 147491

RA 245.8456° · Dec -26.3712° · 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. ≈ 4.8 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 424.4 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 2718 years in a starship at a tenth of light speed.
  • Distance. 272 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1754.

Saying hello

  • Say hello. A radio message and its reply would take 544 years round-trip.

Properties

absmag
4.996
bv
0.626
constellation
Sco
dist ly
271.7966
mag
9.6
name
HD 147491
spect
G0V

About HD 147491

HD 147491 is a trash variable star. It lies about 271.8 light-years from Earth, sits in the constellation Sco, shines at apparent magnitude 9.6 and has spectral type G0V.

HD 147491 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 147491 in the constellation Sco. At apparent magnitude 9.6, a small backyard telescope will bring it into view.

Like any astronomical target, HD 147491 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 147491 is a trash variable star

HD 147491 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.