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Uncommon star 22 EP

HD 164389

RA 270.6227° · Dec -36.3635° · star

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Score breakdown

· 5 badges
22 pts · Uncommon
Uncommon 34 pts → Rare
  • Toward the galactic centre +8
  • Subgiant (leaving the main sequence) +5
  • Star +3
  • On the zodiac +3
  • Orange K-type star +3
Total score 22

12 more points to reach Rare.

Badges

  • Star · +3
  • Toward the galactic centre · +8
  • On the zodiac · +3
  • Orange K-type star · +3
  • Subgiant (leaving the main sequence) · +5

Trivia

What it actually is

  • Spectral class. Its spectrum reads K0IV/V — 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 a subgiant, caught in the act of leaving the main sequence as the hydrogen in its core runs out.

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 9.2 you'll want a small backyard telescope, over in Sagittarius.
  • 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 June — 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. ≈ 3.4 million years at Voyager 1's speed (17 km/s).

Properties

absmag
5.38
bv
0.876
constellation
Sgr
dist ly
191.1816
luminosity
0.6138
mag
9.22
name
HD 164389
spect
K0IV/V

About HD 164389

HD 164389 is an uncommon star. It lies about 191.2 light-years from Earth, sits in the constellation Sgr, shines at apparent magnitude 9.22 and has spectral type K0IV/V.

Its spectrum reads K0IV/V — 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 HD 164389 in the constellation Sgr. At apparent magnitude 9.22, a small backyard telescope will bring it into view.

Like any astronomical target, HD 164389 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 164389 is an uncommon star

HD 164389 scores 22 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 12 points would lift it into a rarer tier.

That score comes from 5 science badges — Star, Toward the galactic centre, On the zodiac, Orange K-type star and Subgiant (leaving the main sequence) — 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.