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Epic star 52 EP

Adhara

RA 104.6565° · Dec -28.9721° · star

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Score breakdown

· 7 badges
52 pts · Epic
Epic 78 pts → Anomaly
  • Bright giant +12
  • Intrinsically luminous (Mv < −2) +10
  • Naked-eye visible +8
  • Has a proper name +8
  • Hot blue B-type star +6
  • Blue-white star +5
  • Star +3
Total score 52

26 more points to reach Anomaly.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Has a proper name · +8
  • Hot blue B-type star · +6
  • Bright giant · +12
  • Blue-white star · +5
  • Intrinsically luminous (Mv < −2) · +10

Trivia

What it actually is

  • Spectral class. Its spectrum reads B2II — a blue-white B-type star, with a surface tens of thousands of degrees hot and a life measured in tens of millions 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 1.5 you can see it with your own eyes from a dark site, over in Canis Major.
  • 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 January — 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
-3.971
bv
-0.211
constellation
CMa
dist ly
405.1627
luminosity
3375.981
mag
1.5
name
Adhara
named
yes
spect
B2II

About Adhara

Adhara is an epic star. It lies about 405.2 light-years from Earth, sits in the constellation CMa, shines at apparent magnitude 1.5 and has spectral type B2II.

Its spectrum reads B2II — a blue-white B-type star, with a surface tens of thousands of degrees hot and a life measured in tens of millions of years.

How to see it

Look for Adhara in the constellation CMa. At apparent magnitude 1.5, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, Adhara 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 Adhara is an epic star

Adhara scores 52 points on Spacedle's rarity scale, which places it in the epic tier. Another 26 points would lift it into a rarer tier.

That score comes from 7 science badges — Star, Naked-eye visible, Has a proper name, Hot blue B-type star, Bright giant, 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.