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Trash star 14 EP

HR 3591

RA 135.0226° · Dec -41.2536° · star

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Score breakdown

· 3 badges
14 pts · Trash
Trash 15 pts → Common
  • Naked-eye visible +8
  • Star +3
  • Yellow-white F-type star +3
Total score 14

1 more point to reach Common.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Yellow-white F-type star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads Fp — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

Sense of scale

  • In perspective. Far away by human standards, yet still a local address inside the Milky Way's spiral arms.

Find it in the sky

  • How to spot it. At magnitude 4.5 you can see it with your own eyes from a dark site, over in Vela.
  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around February — that's when to go looking.

Could we get there?

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

Getting there

  • Aboard Voyager 1. ≈ 3.7 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 328.6 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
0.402
bv
0.646
constellation
Vel
dist ly
210.4231
luminosity
60.1451
mag
4.45
name
HR 3591
spect
Fp

About HR 3591

HR 3591 is a trash star. It lies about 210.4 light-years from Earth, sits in the constellation Vel, shines at apparent magnitude 4.45 and has spectral type Fp.

Its spectrum reads Fp — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for HR 3591 in the constellation Vel. At apparent magnitude 4.45, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, HR 3591 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 3591 is a trash star

HR 3591 scores 14 points on Spacedle's rarity scale, which places it in the trash tier. Another 1 point would lift it into a rarer tier.

That score comes from 3 science badges — Star, Naked-eye visible and Yellow-white F-type 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.