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Rare star 40 EP

Alsafi

RA 293.0872° · Dec 69.6612° · star

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Score breakdown

· 7 badges
40 pts · Rare
Rare 50 pts → Epic
  • Nearby (<25 ly) +12
  • Naked-eye visible +8
  • Has a proper name +8
  • Never sets (northern circumpolar) +4
  • Star +3
  • Orange K-type star +3
  • Main-sequence star +2
Total score 40

10 more points to reach Epic.

Badges

  • Star · +3
  • Nearby (<25 ly) · +12
  • Naked-eye visible · +8
  • Has a proper name · +8
  • Never sets (northern circumpolar) · +4
  • Orange K-type star · +3
  • Main-sequence star · +2

Trivia

What it actually is

  • Spectral class. Its spectrum reads K0V — 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 on the main sequence, quietly fusing hydrogen in its core exactly as the Sun does.

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 4.7 you can see it with your own eyes from a dark site, over in Draco.
  • Never sets. So far north that from Britain, Canada or northern Europe it never dips below the horizon — it is up every clear night of the year.
  • 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.

Getting there

  • Aboard Voyager 1. ≈ 329.8 thousand years at Voyager 1's speed (17 km/s).

Properties

absmag
5.87
bv
0.786
constellation
Dra
dist ly
18.7693
luminosity
0.3908
mag
4.67
name
Alsafi
named
yes
spect
K0V

About Alsafi

Alsafi is a rare star. It lies about 18.8 light-years from Earth, sits in the constellation Dra, shines at apparent magnitude 4.67 and has spectral type K0V.

Its spectrum reads K0V — 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 Alsafi in the constellation Dra. At apparent magnitude 4.67, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, Alsafi 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 Alsafi is a rare star

Alsafi scores 40 points on Spacedle's rarity scale, which places it in the rare tier. Another 10 points would lift it into a rarer tier.

That score comes from 7 science badges — Star, Nearby (<25 ly), Naked-eye visible, Has a proper name, Never sets (northern circumpolar), Orange K-type star and Main-sequence 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.