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Epic star 58 EP

30Eta Leo

RA 151.8331° · Dec 16.7627° · star

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Score breakdown

· 8 badges
58 pts · Epic
Epic 78 pts → Anomaly
  • Supergiant +18
  • Intrinsically luminous (Mv < −2) +10
  • Naked-eye visible +8
  • Distant (over 1,000 light-years) +6
  • White A-type star +5
  • Blue-white star +5
  • Star +3
  • On the zodiac +3
Total score 58

20 more points to reach Anomaly.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • Naked-eye visible · +8
  • On the zodiac · +3
  • White A-type star · +5
  • Supergiant · +18
  • Blue-white star · +5
  • Intrinsically luminous (Mv < −2) · +10

Trivia

What it actually is

  • Spectral class. Its spectrum reads A0Ib — 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.
  • Where it is in life. It is a supergiant, hundreds of times wider than the Sun.

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 3.5 you can see it with your own eyes from a dark site, over in Leo.
  • Northern sky. It rides the northern half of the sky — an easier target the further north you are.
  • Best time of year. It stands highest in the middle of the night around February — 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. ≈ 22.3 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-4.47
bv
-0.031
constellation
Leo
dist ly
1269.0896
luminosity
5345.6436
mag
3.48
name
30Eta Leo
spect
A0Ib

About 30Eta Leo

30Eta Leo is an epic star. It lies about 1,269.1 light-years from Earth, sits in the constellation Leo, shines at apparent magnitude 3.48 and has spectral type A0Ib.

Its spectrum reads A0Ib — 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 30Eta Leo in the constellation Leo. At apparent magnitude 3.48, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 30Eta 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 30Eta Leo is an epic star

30Eta Leo scores 58 points on Spacedle's rarity scale, which places it in the epic tier. Another 20 points would lift it into a rarer tier.

That score comes from 8 science badges — Star, Distant (over 1,000 light-years), Naked-eye visible, On the zodiac, White A-type star, Supergiant, Blue-white star and Intrinsically luminous (Mv < −2) — 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.