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Trash variable star 5 EP

HR 3447

RA 130.0733° · Dec -52.9219° · 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. ≈ 8.7 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 770.4 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 4934 years in a starship at a tenth of light speed.
  • Distance. 493 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1533.

Saying hello

  • Say hello. A radio message and its reply would take 987 years round-trip.

Properties

absmag
-2.299
bv
-0.168
constellation
Vel
dist ly
493.428
mag
3.6
name
HR 3447
spect
B3IV

About HR 3447

HR 3447 is a trash variable star. It lies about 493.4 light-years from Earth, sits in the constellation Vel, shines at apparent magnitude 3.6 and has spectral type B3IV.

HR 3447 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 HR 3447 in the constellation Vel. At apparent magnitude 3.6, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, HR 3447 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 HR 3447 is a trash variable star

HR 3447 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.