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Uncommon star 30 EP

HD 106109

RA 183.1690° · Dec -59.4199° · star

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Score breakdown

· 5 badges
30 pts · Uncommon
Uncommon 34 pts → Rare
  • Under the Southern Cross +8
  • Sun-like G-type star +8
  • Distant (over 1,000 light-years) +6
  • Subgiant (leaving the main sequence) +5
  • Star +3
Total score 30

4 more points to reach Rare.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • Under the Southern Cross · +8
  • Sun-like G-type star · +8
  • Subgiant (leaving the main sequence) · +5

Trivia

What it actually is

  • Spectral class. Its spectrum reads G5/G6IV/V — 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 8.9 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Crux.
  • 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 March — 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. ≈ 41.8 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 3.7 million years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
-0.436
bv
0.983
constellation
Cru
dist ly
2380.7007
luminosity
130.1368
mag
8.88
name
HD 106109
spect
G5/G6IV/V

About HD 106109

HD 106109 is an uncommon star. It lies about 2,380.7 light-years from Earth, sits in the constellation Cru, shines at apparent magnitude 8.88 and has spectral type G5/G6IV/V.

Its spectrum reads G5/G6IV/V — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HD 106109 in the constellation Cru. At apparent magnitude 8.88, it is an easy target for binoculars.

Like any astronomical target, HD 106109 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 106109 is an uncommon star

HD 106109 scores 30 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 4 points would lift it into a rarer tier.

That score comes from 5 science badges — Star, Distant (over 1,000 light-years), Under the Southern Cross, Sun-like G-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.