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Uncommon star 26 EP

HR 2140

RA 90.8150° · Dec -26.2845° · star

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Score breakdown

· 4 badges
26 pts · Uncommon
Uncommon 34 pts → Rare
  • Bright giant +12
  • Naked-eye visible +8
  • Star +3
  • Orange K-type star +3
Total score 26

8 more points to reach Rare.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Orange K-type star · +3
  • Bright giant · +12

Trivia

What it actually is

  • Spectral class. Its spectrum reads K3II/IIICNv — 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 5 you can see it with your own eyes from a dark site, over in Lepus.
  • 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 December — 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. ≈ 7.1 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-0.449
bv
1.335
constellation
Lep
dist ly
406.6784
luminosity
131.7043
mag
5.03
name
HR 2140
spect
K3II/IIICNv

About HR 2140

HR 2140 is an uncommon star. It lies about 406.7 light-years from Earth, sits in the constellation Lep, shines at apparent magnitude 5.03 and has spectral type K3II/IIICNv.

Its spectrum reads K3II/IIICNv — 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 HR 2140 in the constellation Lep. At apparent magnitude 5.03, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, HR 2140 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 2140 is an uncommon star

HR 2140 scores 26 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 8 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, Naked-eye visible, 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.