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Trash variable star 5 EP

HD 120447

RA 207.3448° · Dec 10.5908° · 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. ≈ 9 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 800.7 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 5128 years in a starship at a tenth of light speed.
  • Distance. 513 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1513.

Saying hello

  • Say hello. A radio message and its reply would take 1026 years round-trip.

Properties

absmag
2.677
bv
0.719
constellation
Boo
dist ly
512.8239
mag
8.66
name
HD 120447
spect
G5

About HD 120447

HD 120447 is a trash variable star. It lies about 512.8 light-years from Earth, sits in the constellation Boo, shines at apparent magnitude 8.66 and has spectral type G5.

HD 120447 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 120447 in the constellation Boo. At apparent magnitude 8.66, it is an easy target for binoculars.

Like any astronomical target, HD 120447 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 120447 is a trash variable star

HD 120447 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.