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Common star 16 EP

27Tau6Eri

RA 56.7121° · Dec -23.2497° · star

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Score breakdown

· 4 badges
16 pts · Common
Common 22 pts → Uncommon
  • Naked-eye visible +8
  • Star +3
  • Yellow-white F-type star +3
  • Main-sequence star +2
Total score 16

6 more points to reach Uncommon.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Yellow-white F-type star · +3
  • Main-sequence star · +2

Trivia

What it actually is

  • Spectral class. Its spectrum reads F3/F5V — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

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 4.2 you can see it with your own eyes from a dark site, over in Eridanus.
  • 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 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. ≈ 1 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 89.8 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
2.989
bv
0.434
constellation
Eri
dist ly
57.4928
luminosity
5.5514
mag
4.22
name
27Tau6Eri
spect
F3/F5V

About 27Tau6Eri

27Tau6Eri is a common star. It lies about 57.5 light-years from Earth, sits in the constellation Eri, shines at apparent magnitude 4.22 and has spectral type F3/F5V.

Its spectrum reads F3/F5V — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for 27Tau6Eri in the constellation Eri. At apparent magnitude 4.22, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 27Tau6Eri 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 27Tau6Eri is a common star

27Tau6Eri 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, Naked-eye visible, 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.