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Epic star 50 EP

Struve 2398 B

RA 280.6987° · Dec 59.6268° · star

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Score breakdown

· 8 badges
50 pts · Epic
Epic 78 pts → Anomaly
  • Nearby (<25 ly) +12
  • Has a proper name +8
  • Deep red star +8
  • Binary star +6
  • Intrinsically feeble (Mv > +12) +6
  • Never sets (northern circumpolar) +4
  • Star +3
  • Orange K-type star +3
Total score 50

28 more points to reach Anomaly.

Badges

  • Star · +3
  • Nearby (<25 ly) · +12
  • Binary star · +6
  • Has a proper name · +8
  • Never sets (northern circumpolar) · +4
  • Orange K-type star · +3
  • Deep red star · +8
  • Intrinsically feeble (Mv > +12) · +6

Trivia

What makes it special

  • Not one star but two. It is a binary: two stars orbiting a shared centre of mass. More than half of all the 'stars' you can see are actually multiple systems.

What it actually is

  • Spectral class. Its spectrum reads K5 — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.

Sense of scale

  • In perspective. Inside our stellar backyard: every radio broadcast humanity has ever made has already swept past it.

Find it in the sky

  • How to spot it. At magnitude 9.7 you'll want a small backyard telescope, 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. A multi-generation starship could one day attempt the crossing.

Getting there

  • Aboard Voyager 1. ≈ 198 thousand years at Voyager 1's speed (17 km/s).

Properties

absmag
12.008
binary
yes
bv
1.561
constellation
Dra
dist ly
11.2671
luminosity
0.0014
mag
9.7
name
Struve 2398 B
named
yes
spect
K5

About Struve 2398 B

Struve 2398 B is an epic star. It lies about 11.3 light-years from Earth, sits in the constellation Dra, shines at apparent magnitude 9.7 and has spectral type K5.

It is a binary: two stars orbiting a shared centre of mass. More than half of all the 'stars' you can see are actually multiple systems.

How to see it

Look for Struve 2398 B in the constellation Dra. At apparent magnitude 9.7, a small backyard telescope will bring it into view.

Like any astronomical target, Struve 2398 B 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 Struve 2398 B is an epic star

Struve 2398 B scores 50 points on Spacedle's rarity scale, which places it in the epic tier. Another 28 points would lift it into a rarer tier.

That score comes from 8 science badges — Star, Nearby (<25 ly), Binary star, Has a proper name, Never sets (northern circumpolar), Orange K-type star, Deep red star and Intrinsically feeble (Mv > +12) — 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.