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Common star 16 EP

4Eps1Lyr

RA 281.0848° · Dec 39.6701° · 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 F1V — 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. 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 4.7 you can see it with your own eyes from a dark site, over in Lyra.
  • 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 July — 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. ≈ 2.9 million years at Voyager 1's speed (17 km/s).

Properties

absmag
1.185
bv
0.17
constellation
Lyr
dist ly
162.3474
luminosity
29.2415
mag
4.67
name
4Eps1Lyr
spect
F1V

About 4Eps1Lyr

4Eps1Lyr is a common star. It lies about 162.3 light-years from Earth, sits in the constellation Lyr, shines at apparent magnitude 4.67 and has spectral type F1V.

Its spectrum reads F1V — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for 4Eps1Lyr in the constellation Lyr. At apparent magnitude 4.67, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 4Eps1Lyr 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 4Eps1Lyr is a common star

4Eps1Lyr 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.