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Rare variable star 37 EP

47Omi Dra

RA 282.8002° · Dec 59.3884° · star

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Score breakdown

· 7 badges
37 pts · Rare
Rare 50 pts → Epic
  • Bright giant +12
  • Naked-eye visible +8
  • Variable star +5
  • Never sets (northern circumpolar) +4
  • Orange K-type star +3
  • A named variable star +3
  • Barely variable (under 0.05 mag) +2
Total score 37

13 more points to reach Epic.

Badges

  • Variable star · +5
  • Naked-eye visible · +8
  • Never sets (northern circumpolar) · +4
  • Orange K-type star · +3
  • Bright giant · +12
  • Barely variable (under 0.05 mag) · +2
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads K0II-III SB — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.
  • 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 4.6 you can see it with your own eyes from a dark site, over in Draco.
  • 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 July — that's when to go looking.

Could we get there?

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

Properties

absmag
-0.472
bv
1.185
constellation
Dra
dist ly
341.8826
luminosity
134.5241
mag
4.63
name
47Omi Dra
spect
K0II-III SB
var amplitude
0.04
var designation
Omi
var max
4.619
var min
4.659

About 47Omi Dra

47Omi Dra is a rare variable star. It lies about 341.9 light-years from Earth, sits in the constellation Dra, shines at apparent magnitude 4.63 and has spectral type K0II-III SB.

Its spectrum reads K0II-III SB — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.

How to see it

Look for 47Omi Dra in the constellation Dra. At apparent magnitude 4.63, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 47Omi Dra 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 47Omi Dra is a rare variable star

47Omi Dra scores 37 points on Spacedle's rarity scale, which places it in the rare tier. Another 13 points would lift it into a rarer tier.

That score comes from 7 science badges — Variable star, Naked-eye visible, Never sets (northern circumpolar), Orange K-type star, Bright giant, Barely variable (under 0.05 mag) 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.