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Rare star 43 EP

41The1Ori

RA 83.8186° · Dec -5.3897° · star

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Score breakdown

· 4 badges
43 pts · Rare
Rare 50 pts → Epic
  • Blazing O-type star +26
  • Naked-eye visible +8
  • In Orion's hunting ground +6
  • Star +3
Total score 43

7 more points to reach Epic.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • In Orion's hunting ground · +6
  • Blazing O-type star · +26

Trivia

What it actually is

  • Spectral class. Its spectrum reads O6pe — an O-type star — the hottest, rarest main class there is. Fewer than one star in a million is an O, and none of them lasts long.

Find it in the sky

  • How to spot it. At magnitude 5.1 you can see it with your own eyes from a dark site, over in Orion.
  • 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 December — that's when to go looking.

Its true colour

  • Its true colour. Measured through blue and visual filters it comes out brilliant white (B−V 0) — hotter and whiter than the Sun, the colour of Sirius or Vega.
  • Why no green stars. No star ever looks green: a surface hot enough to peak in green also floods out plenty of red and blue, and your eye blends the mixture back to white.

By the numbers

  • Surface temperature. Its colour puts the surface at roughly 9880 K, against the Sun's 5778 K.

Properties

absmag
-14.87
bv
0.02
constellation
Ori
luminosity
77268058.5096
mag
5.13
name
41The1Ori
spect
O6pe

About 41The1Ori

41The1Ori is a rare star. It sits in the constellation Ori, shines at apparent magnitude 5.13 and has spectral type O6pe.

Its spectrum reads O6pe — an O-type star — the hottest, rarest main class there is. Fewer than one star in a million is an O, and none of them lasts long.

How to see it

Look for 41The1Ori in the constellation Ori. At apparent magnitude 5.13, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 41The1Ori 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 41The1Ori is a rare star

41The1Ori scores 43 points on Spacedle's rarity scale, which places it in the rare tier. Another 7 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, Naked-eye visible, In Orion's hunting ground and Blazing O-type 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.