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Common star 19 EP

10 Tau

RA 54.2183° · Dec 0.4017° · star

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Score breakdown

· 5 badges
19 pts · Common
Common 22 pts → Uncommon
  • Naked-eye visible +8
  • Star +3
  • On the zodiac +3
  • Yellow-white F-type star +3
  • Main-sequence star +2
Total score 19

3 more points to reach Uncommon.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • On the zodiac · +3
  • 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 4.3 you can see it with your own eyes from a dark site, over in Taurus.
  • Seen from everywhere. It sits almost on the celestial equator, so it can be seen from essentially anywhere on Earth.
  • Best time of year. It stands highest in the middle of the night around November — 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. ≈ 800.3 thousand years at Voyager 1's speed (17 km/s).

Properties

absmag
3.565
bv
0.575
constellation
Tau
dist ly
45.5399
luminosity
3.2659
mag
4.29
name
10 Tau
spect
F9V

About 10 Tau

10 Tau is a common star. It lies about 45.5 light-years from Earth, sits in the constellation Tau, shines at apparent magnitude 4.29 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 10 Tau in the constellation Tau. At apparent magnitude 4.29, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 10 Tau 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 10 Tau is a common star

10 Tau scores 19 points on Spacedle's rarity scale, which places it in the common tier. Another 3 points would lift it into a rarer tier.

That score comes from 5 science badges — Star, Naked-eye visible, On the zodiac, 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.