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Uncommon star 26 EP

HD 18189

RA 44.0199° · Dec 26.0907° · star

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Score breakdown

· 5 badges
26 pts · Uncommon
Uncommon 34 pts → Rare
  • Sun-like G-type star +8
  • Distant (over 1,000 light-years) +6
  • Giant star +6
  • Star +3
  • On the zodiac +3
Total score 26

8 more points to reach Rare.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • On the zodiac · +3
  • Sun-like G-type star · +8
  • Giant star · +6

Trivia

What it actually is

  • Spectral class. Its spectrum reads G8III — 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 8 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Aries.
  • 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 November — that's when to go looking.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 18.3 million years at Voyager 1's speed (17 km/s).

Properties

absmag
0.498
bv
1.063
constellation
Ari
dist ly
1042.0319
luminosity
55.0554
mag
8.02
name
HD 18189
spect
G8III

About HD 18189

HD 18189 is an uncommon star. It lies about 1,042 light-years from Earth, sits in the constellation Ari, shines at apparent magnitude 8.02 and has spectral type G8III.

Its spectrum reads G8III — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HD 18189 in the constellation Ari. At apparent magnitude 8.02, it is an easy target for binoculars.

Like any astronomical target, HD 18189 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 HD 18189 is an uncommon star

HD 18189 scores 26 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 8 points would lift it into a rarer tier.

That score comes from 5 science badges — Star, Distant (over 1,000 light-years), 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.