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Uncommon star 24 EP

HD 137355

RA 232.3047° · Dec -65.0503° · star

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Score breakdown

· 4 badges
24 pts · Uncommon
Uncommon 34 pts → Rare
  • Bright giant +12
  • Distant (over 1,000 light-years) +6
  • Star +3
  • Orange K-type star +3
Total score 24

10 more points to reach Rare.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • Orange K-type star · +3
  • Bright giant · +12

Trivia

What it actually is

  • Spectral class. Its spectrum reads K1II — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.
  • Where it is in life. It is a bright giant, well on its way to the largest stars there are.

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 8.2 it is just past naked-eye reach — ordinary binoculars will pull it in, 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. ≈ 28.8 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-0.336
bv
1.141
constellation
TrA
dist ly
1638.975
luminosity
118.6861
mag
8.17
name
HD 137355
spect
K1II

About HD 137355

HD 137355 is an uncommon star. It lies about 1,639 light-years from Earth, sits in the constellation TrA, shines at apparent magnitude 8.17 and has spectral type K1II.

Its spectrum reads K1II — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.

How to see it

Look for HD 137355 in the constellation TrA. At apparent magnitude 8.17, it is an easy target for binoculars.

Like any astronomical target, HD 137355 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 137355 is an uncommon star

HD 137355 scores 24 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 10 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, Distant (over 1,000 light-years), Orange K-type star and Bright giant — 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.