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Common star 20 EP

16 UMa

RA 138.5856° · Dec 61.4233° · star

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Score breakdown

· 5 badges
20 pts · Common
Common 22 pts → Uncommon
  • Naked-eye visible +8
  • Never sets (northern circumpolar) +4
  • Star +3
  • Yellow-white F-type star +3
  • Main-sequence star +2
Total score 20

2 more points to reach Uncommon.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Never sets (northern circumpolar) · +4
  • Yellow-white F-type star · +3
  • Main-sequence star · +2

Trivia

What it actually is

  • Spectral class. Its spectrum reads F9V — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
  • Where it is in life. It is on the main sequence, quietly fusing hydrogen in its core exactly as the Sun does.

Sense of scale

  • In perspective. Inside our stellar backyard: every radio broadcast humanity has ever made has already swept past it.

Find it in the sky

  • How to spot it. At magnitude 5.2 you can see it with your own eyes from a dark site, over in Ursa Major.
  • Never sets. So far north that from Britain, Canada or northern Europe it never dips below the horizon — it is up every clear night of the year.
  • 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. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 1.1 million years at Voyager 1's speed (17 km/s).

Properties

absmag
3.722
bv
0.605
constellation
UMa
dist ly
63.8271
luminosity
2.8262
mag
5.18
name
16 UMa
spect
F9V

About 16 UMa

16 UMa is a common star. It lies about 63.8 light-years from Earth, sits in the constellation UMa, shines at apparent magnitude 5.18 and has spectral type F9V.

Its spectrum reads F9V — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for 16 UMa in the constellation UMa. At apparent magnitude 5.18, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 16 UMa 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 16 UMa is a common star

16 UMa 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 5 science badges — Star, Naked-eye visible, Never sets (northern circumpolar), Yellow-white F-type star and Main-sequence 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.