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Rare star 42 EP

Elgafar

RA 217.0506° · Dec -2.2280° · star

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Score breakdown

· 7 badges
42 pts · Rare
Rare 50 pts → Epic
  • Naked-eye visible +8
  • Has a proper name +8
  • Sun-like G-type star +8
  • Binary star +6
  • Giant star +6
  • Star +3
  • On the zodiac +3
Total score 42

8 more points to reach Epic.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Binary star · +6
  • Has a proper name · +8
  • On the zodiac · +3
  • Sun-like G-type star · +8
  • Giant star · +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 G2III — a G-type star: the very same spectral class as our own Sun.
  • Where it is in life. It is a giant. It has already exhausted its core hydrogen and swollen up enormously in response.

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 4.8 you can see it with your own eyes from a dark site, over in Virgo.
  • 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 April — that's when to go looking.

Could we get there?

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

Properties

absmag
2.013
binary
yes
bv
0.693
constellation
Vir
dist ly
118.2583
luminosity
13.6395
mag
4.81
name
Elgafar
named
yes
spect
G2III

About Elgafar

Elgafar is a rare star. It lies about 118.3 light-years from Earth, sits in the constellation Vir, shines at apparent magnitude 4.81 and has spectral type G2III.

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 Elgafar in the constellation Vir. At apparent magnitude 4.81, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, Elgafar 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 Elgafar is a rare star

Elgafar scores 42 points on Spacedle's rarity scale, which places it in the rare tier. Another 8 points would lift it into a rarer tier.

That score comes from 7 science badges — Star, Naked-eye visible, Binary star, Has a proper name, On the zodiac, Sun-like G-type star and Giant 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.