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Common star 16 EP

HD 218554

RA 347.2587° · Dec -13.7166° · star

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Score breakdown

· 4 badges
16 pts · Common
Common 22 pts → Uncommon
  • Sun-like G-type star +8
  • Star +3
  • On the zodiac +3
  • Main-sequence star +2
Total score 16

6 more points to reach Uncommon.

Badges

  • Star · +3
  • On the zodiac · +3
  • Sun-like G-type star · +8
  • Main-sequence star · +2

Trivia

What it actually is

  • Spectral class. Its spectrum reads G2/G3V — a G-type star: the very same spectral class as our own Sun.

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 9.5 you'll want a small backyard telescope, over in Aquarius.
  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around September — 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. ≈ 6.8 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 602 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
4.167
bv
0.633
constellation
Aqr
dist ly
385.5272
luminosity
1.8759
mag
9.53
name
HD 218554
spect
G2/G3V

About HD 218554

HD 218554 is a common star. It lies about 385.5 light-years from Earth, sits in the constellation Aqr, shines at apparent magnitude 9.53 and has spectral type G2/G3V.

Its spectrum reads G2/G3V — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HD 218554 in the constellation Aqr. At apparent magnitude 9.53, a small backyard telescope will bring it into view.

Like any astronomical target, HD 218554 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 218554 is a common star

HD 218554 scores 16 points on Spacedle's rarity scale, which places it in the common tier. Another 6 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, On the zodiac, Sun-like G-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.