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Common star 20 EP

HD 111102

RA 191.9134° · Dec -58.2976° · star

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Score breakdown

· 4 badges
20 pts · Common
Common 22 pts → Uncommon
  • Under the Southern Cross +8
  • Giant star +6
  • Star +3
  • Yellow-white F-type star +3
Total score 20

2 more points to reach Uncommon.

Badges

  • Star · +3
  • Under the Southern Cross · +8
  • Yellow-white F-type star · +3
  • Giant star · +6

Trivia

What it actually is

  • Spectral class. Its spectrum reads F0III — an F-type star — a little hotter, whiter and shorter-lived than the 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 7 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 April — 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. ≈ 7.1 million years at Voyager 1's speed (17 km/s).

Properties

absmag
1.49
bv
0.261
constellation
Cru
dist ly
403.1595
luminosity
22.08
mag
6.95
name
HD 111102
spect
F0III

About HD 111102

HD 111102 is a common star. It lies about 403.2 light-years from Earth, sits in the constellation Cru, shines at apparent magnitude 6.95 and has spectral type F0III.

Its spectrum reads F0III — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for HD 111102 in the constellation Cru. At apparent magnitude 6.95, it is an easy target for binoculars.

Like any astronomical target, HD 111102 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 111102 is a common star

HD 111102 scores 20 points on Spacedle's rarity scale, which places it in the common tier. Another 2 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, Under the Southern Cross, Yellow-white F-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.