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Common star 19 EP

HD 143450

RA 241.3665° · Dec -69.5958° · star

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Score breakdown

· 4 badges
19 pts · Common
Common 22 pts → Uncommon
  • Deep red star +8
  • Subgiant (leaving the main sequence) +5
  • Star +3
  • Orange K-type star +3
Total score 19

3 more points to reach Uncommon.

Badges

  • Star · +3
  • Orange K-type star · +3
  • Subgiant (leaving the main sequence) · +5
  • Deep red star · +8

Trivia

What it actually is

  • Spectral class. Its spectrum reads K3IV — 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 subgiant, caught in the act of leaving the main sequence as the hydrogen in its core runs out.

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 9.3 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. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 17.4 million years at Voyager 1's speed (17 km/s).

Properties

absmag
1.923
bv
1.448
constellation
TrA
dist ly
988.3515
luminosity
14.8184
mag
9.33
name
HD 143450
spect
K3IV

About HD 143450

HD 143450 is a common star. It lies about 988.4 light-years from Earth, sits in the constellation TrA, shines at apparent magnitude 9.33 and has spectral type K3IV.

Its spectrum reads K3IV — 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 143450 in the constellation TrA. At apparent magnitude 9.33, a small backyard telescope will bring it into view.

Like any astronomical target, HD 143450 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 143450 is a common star

HD 143450 scores 19 points on Spacedle's rarity scale, which places it in the common tier. Another 3 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, Orange K-type star, Subgiant (leaving the main sequence) and Deep red 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.