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Rare star 40 EP

GL GJ 1155B

RA 184.2136° · Dec 2.9692° · star

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Score breakdown

· 5 badges
40 pts · Rare
Rare 50 pts → Epic
  • White dwarf (a burnt-out core) +22
  • Binary star +6
  • Intrinsically feeble (Mv > +12) +6
  • Star +3
  • On the zodiac +3
Total score 40

10 more points to reach Epic.

Badges

  • Star · +3
  • Binary star · +6
  • On the zodiac · +3
  • White dwarf (a burnt-out core) · +22
  • 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 DA s — a white dwarf — the exposed, Earth-sized cinder of a dead star, with nothing left to burn.

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 15.3 it is far too faint for the eye: this one belongs to cameras and long exposures, 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 March — 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. ≈ 1.2 million years at Voyager 1's speed (17 km/s).

Properties

absmag
13.634
binary
yes
bv
0.38
constellation
Vir
dist ly
70.9034
luminosity
0.0003
mag
15.32
name
GL GJ 1155B
spect
DA s

About GL GJ 1155B

GL GJ 1155B is a rare star. It lies about 70.9 light-years from Earth, sits in the constellation Vir, shines at apparent magnitude 15.32 and has spectral type DA s.

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 GL GJ 1155B in the constellation Vir. At apparent magnitude 15.32, it takes a larger telescope or a long-exposure image to capture.

Like any astronomical target, GL GJ 1155B 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 GL GJ 1155B is a rare star

GL GJ 1155B 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 5 science badges — Star, Binary star, On the zodiac, White dwarf (a burnt-out core) 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.