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Common star 16 EP

HIP 47316

RA 144.6242° · Dec 57.9202° · star

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Score breakdown

· 4 badges
16 pts · Common
Common 22 pts → Uncommon
  • Distant (over 1,000 light-years) +6
  • Never sets (northern circumpolar) +4
  • Star +3
  • Yellow-white F-type star +3
Total score 16

6 more points to reach Uncommon.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • Never sets (northern circumpolar) · +4
  • Yellow-white F-type star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads sdF:p — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
  • Where it is in life. It is a subdwarf: an old, metal-poor star from the galaxy's early days, a little smaller and fainter than a main-sequence star of the same colour.

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 11.8 you'll want a small backyard telescope, over in Ursa Major.
  • Northern sky. It rides the northern half of the sky — an easier target the further north you are.
  • Best time of year. It stands highest in the middle of the night around February — 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. ≈ 31.7 million years at Voyager 1's speed (17 km/s).

Properties

absmag
3.088
bv
0.484
constellation
UMa
dist ly
1801.9669
luminosity
5.0676
mag
11.8
name
HIP 47316
spect
sdF:p

About HIP 47316

HIP 47316 is a common star. It lies about 1,802 light-years from Earth, sits in the constellation UMa, shines at apparent magnitude 11.8 and has spectral type sdF:p.

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

How to see it

Look for HIP 47316 in the constellation UMa. At apparent magnitude 11.8, a small backyard telescope will bring it into view.

Like any astronomical target, HIP 47316 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 HIP 47316 is a common star

HIP 47316 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, Distant (over 1,000 light-years), Never sets (northern circumpolar) and Yellow-white F-type 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.