← Back to dex
Uncommon star 23 EP

63Chi Leo

RA 166.2543° · Dec 7.3360° · star

Loading sky survey…
🌌 View in 3D star map
Tonight’s visibility

Computing the sky for your location…

Score breakdown

· 5 badges
23 pts · Uncommon
Uncommon 34 pts → Rare
  • Naked-eye visible +8
  • Giant star +6
  • Star +3
  • On the zodiac +3
  • Yellow-white F-type star +3
Total score 23

11 more points to reach Rare.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • On the zodiac · +3
  • Yellow-white F-type star · +3
  • Giant star · +6

Trivia

What it actually is

  • Spectral class. Its spectrum reads F2III-IVvar — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
  • Where it is in life. It is a giant. It has already exhausted its core hydrogen and swollen up enormously in response.

Sense of scale

  • In perspective. Inside our stellar backyard: every radio broadcast humanity has ever made has already swept past it.

Find it in the sky

  • How to spot it. At magnitude 4.6 you can see it with your own eyes from a dark site, over in Leo.
  • Seen from everywhere. It sits almost on the celestial equator, so it can be seen from essentially anywhere on Earth.
  • Best time of year. It stands highest in the middle of the night around March — 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. ≈ 1.7 million years at Voyager 1's speed (17 km/s).

Properties

absmag
2.308
bv
0.332
constellation
Leo
dist ly
94.5653
luminosity
10.3944
mag
4.62
name
63Chi Leo
spect
F2III-IVvar

About 63Chi Leo

63Chi Leo is an uncommon star. It lies about 94.6 light-years from Earth, sits in the constellation Leo, shines at apparent magnitude 4.62 and has spectral type F2III-IVvar.

Its spectrum reads F2III-IVvar — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for 63Chi Leo in the constellation Leo. At apparent magnitude 4.62, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 63Chi Leo 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 63Chi Leo is an uncommon star

63Chi Leo scores 23 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 11 points would lift it into a rarer tier.

That score comes from 5 science badges — Star, Naked-eye visible, On the zodiac, Yellow-white F-type star and Giant 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.