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Common star 21 EP

HD 106958

RA 184.5526° · Dec -57.2295° · star

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Score breakdown

· 4 badges
21 pts · Common
Common 22 pts → Uncommon
  • Under the Southern Cross +8
  • White A-type star +5
  • Subgiant (leaving the main sequence) +5
  • Star +3
Total score 21

1 more point to reach Uncommon.

Badges

  • Star · +3
  • Under the Southern Cross · +8
  • White A-type star · +5
  • Subgiant (leaving the main sequence) · +5

Trivia

What it actually is

  • Spectral class. Its spectrum reads A8IV — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.
  • 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 8.8 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. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 12.3 million years at Voyager 1's speed (17 km/s).

Properties

absmag
2.102
bv
0.35
constellation
Cru
dist ly
699.9057
luminosity
12.5661
mag
8.76
name
HD 106958
spect
A8IV

About HD 106958

HD 106958 is a common star. It lies about 699.9 light-years from Earth, sits in the constellation Cru, shines at apparent magnitude 8.76 and has spectral type A8IV.

Its spectrum reads A8IV — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.

How to see it

Look for HD 106958 in the constellation Cru. At apparent magnitude 8.76, it is an easy target for binoculars.

Like any astronomical target, HD 106958 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 106958 is a common star

HD 106958 scores 21 points on Spacedle's rarity scale, which places it in the common tier. Another 1 point would lift it into a rarer tier.

That score comes from 4 science badges — Star, Under the Southern Cross, White A-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.