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Anomaly variable star 87 EP

Mintaka

RA 83.0017° · Dec -0.2991° · star

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Score breakdown

· 10 badges
87 pts · Anomaly
Anomaly 120 pts → Mythic
  • Blazing O-type star +26
  • Bright giant +12
  • Intrinsically luminous (Mv < −2) +10
  • Naked-eye visible +8
  • Has a proper name +8
  • In Orion's hunting ground +6
  • Variable star +5
  • Blue-white star +5
  • Gently variable +4
  • A named variable star +3
Total score 87

33 more points to reach Mythic.

Badges

  • Variable star · +5
  • Naked-eye visible · +8
  • Has a proper name · +8
  • In Orion's hunting ground · +6
  • Blazing O-type star · +26
  • Bright giant · +12
  • Blue-white star · +5
  • Intrinsically luminous (Mv < −2) · +10
  • Gently variable · +4
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads O9.5II — 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.
  • Where it is in life. It is a bright giant, well on its way to the largest stars there are.
  • It changes. This star does not hold still: its brightness rises and falls on a rhythm of hours, days or years, either pulsing in size or being eclipsed by a companion.

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 2.2 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.

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Properties

absmag
-4.385
bv
-0.175
constellation
Ori
dist ly
692.4755
luminosity
4943.1069
mag
2.25
name
Mintaka
named
yes
spect
O9.5II
var amplitude
0.1
var designation
Del
var max
2.234
var min
2.334

About Mintaka

Mintaka is an anomaly variable star. It lies about 692.5 light-years from Earth, sits in the constellation Ori, shines at apparent magnitude 2.25 and has spectral type O9.5II.

Its spectrum reads O9.5II — 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 Mintaka in the constellation Ori. At apparent magnitude 2.25, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, Mintaka 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 Mintaka is an anomaly variable star

Mintaka scores 87 points on Spacedle's rarity scale, which places it in the anomaly tier. Another 33 points would lift it into a rarer tier.

That score comes from 10 science badges — Variable star, Naked-eye visible, Has a proper name, In Orion's hunting ground, Blazing O-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.