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Anomaly variable star 86 EP

Menkib

RA 59.7412° · Dec 35.7910° · star

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Score breakdown

· 9 badges
86 pts · Anomaly
Anomaly 120 pts → Mythic
  • Blazing O-type star +26
  • Supergiant +18
  • Intrinsically luminous (Mv < −2) +10
  • Naked-eye visible +8
  • Has a proper name +8
  • Distant (over 1,000 light-years) +6
  • Variable star +5
  • A named variable star +3
  • Barely variable (under 0.05 mag) +2
Total score 86

34 more points to reach Mythic.

Badges

  • Variable star · +5
  • Distant (over 1,000 light-years) · +6
  • Naked-eye visible · +8
  • Has a proper name · +8
  • Blazing O-type star · +26
  • Supergiant · +18
  • Intrinsically luminous (Mv < −2) · +10
  • Barely variable (under 0.05 mag) · +2
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads O7.5Iab: — 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 supergiant. Drop it where the Sun is and its surface would engulf the inner planets.
  • 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 4 you can see it with your own eyes from a dark site, over in Perseus.
  • 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 November — that's when to go looking.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Properties

absmag
-3.928
bv
0.016
constellation
Per
dist ly
1244.8703
luminosity
3244.8902
mag
3.98
name
Menkib
named
yes
spect
O7.5Iab:
var amplitude
0.02
var designation
Xi
var max
3.97
var min
3.99

About Menkib

Menkib is an anomaly variable star. It lies about 1,244.9 light-years from Earth, sits in the constellation Per, shines at apparent magnitude 3.98 and has spectral type O7.5Iab:.

Its spectrum reads O7.5Iab: — 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 Menkib in the constellation Per. At apparent magnitude 3.98, it can be glimpsed with the unaided eye under dark skies.

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

Menkib scores 86 points on Spacedle's rarity scale, which places it in the anomaly tier. Another 34 points would lift it into a rarer tier.

That score comes from 9 science badges — Variable star, Distant (over 1,000 light-years), Naked-eye visible, Has a proper name, Blazing O-type star, Supergiant, Intrinsically luminous (Mv < −2) and Barely variable (under 0.05 mag) — 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.