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Trash star 14 EP

HD 137551

RA 232.7930° · Dec -69.2192° · star

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Score breakdown

· 3 badges
14 pts · Trash
Trash 15 pts → Common
  • Distant (over 1,000 light-years) +6
  • White A-type star +5
  • Star +3
Total score 14

1 more point to reach Common.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • White A-type star · +5

Trivia

What it actually is

  • Spectral class. Its spectrum reads Ap SiCr — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.

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 9.4 you'll want a small backyard telescope, over in Triangulum Australe.
  • Southern sky only. So far south it never rises for most of the northern hemisphere. To see it you'd have to travel to Chile, South Africa or Australia.
  • Best time of year. It stands highest in the middle of the night around May — that's when to go looking.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 32.6 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 2.9 million years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
0.588
bv
0.028
constellation
TrA
dist ly
1853.159
luminosity
50.6757
mag
9.36
name
HD 137551
spect
Ap SiCr

About HD 137551

HD 137551 is a trash star. It lies about 1,853.2 light-years from Earth, sits in the constellation TrA, shines at apparent magnitude 9.36 and has spectral type Ap SiCr.

Its spectrum reads Ap SiCr — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.

How to see it

Look for HD 137551 in the constellation TrA. At apparent magnitude 9.36, a small backyard telescope will bring it into view.

Like any astronomical target, HD 137551 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 137551 is a trash star

HD 137551 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, Distant (over 1,000 light-years) and White A-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.