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Epic variable star 58 EP

41The1Ori

RA 83.8159° · Dec -5.3873° · star

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Score breakdown

· 6 badges
58 pts · Epic
Epic 78 pts → Anomaly
  • Blazing O-type star +26
  • Strongly variable +10
  • Naked-eye visible +8
  • In Orion's hunting ground +6
  • Variable star +5
  • A named variable star +3
Total score 58

20 more points to reach Anomaly.

Badges

  • Variable star · +5
  • Naked-eye visible · +8
  • In Orion's hunting ground · +6
  • Blazing O-type star · +26
  • Strongly variable · +10
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads O7 — 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.
  • 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.

Find it in the sky

  • How to spot it. At magnitude 5 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.

How we came to know it

  • Cosmic yardstick. Variable stars are how we measured the universe. In 1912 Henrietta Leavitt showed that a pulsating star's rhythm reveals its true brightness — turning these stars into distance markers.

Properties

absmag
-15.02
constellation
Ori
luminosity
88715601.2038
mag
4.98
name
41The1Ori
spect
O7
var amplitude
0.81
var designation
V1016
var max
4.741
var min
5.551

About 41The1Ori

41The1Ori is an epic variable star. It sits in the constellation Ori, shines at apparent magnitude 4.98 and has spectral type O7.

Its spectrum reads O7 — 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 4.98, 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 an epic variable star

41The1Ori 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 6 science badges — Variable star, Naked-eye visible, In Orion's hunting ground, Blazing O-type star, Strongly variable and A named variable 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.