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Common star 16 EP

39 Ser

RA 238.3004° · Dec 13.1966° · star

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Score breakdown

· 3 badges
16 pts · Common
Common 22 pts → Uncommon
  • Sun-like G-type star +8
  • Subgiant (leaving the main sequence) +5
  • Star +3
Total score 16

6 more points to reach Uncommon.

Badges

  • Star · +3
  • Sun-like G-type star · +8
  • Subgiant (leaving the main sequence) · +5

Trivia

What it actually is

  • Spectral class. Its spectrum reads G0IV — a G-type star: the very same spectral class as our own Sun.
  • Where it is in life. It is a subgiant, caught in the act of leaving the main sequence as the hydrogen in its core runs out.

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 6.1 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Serpens.
  • 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 May — 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. ≈ 994.4 thousand years at Voyager 1's speed (17 km/s).

Properties

absmag
4.874
bv
0.598
constellation
Ser
dist ly
56.5851
luminosity
0.9781
mag
6.07
name
39 Ser
spect
G0IV

About 39 Ser

39 Ser is a common star. It lies about 56.6 light-years from Earth, sits in the constellation Ser, shines at apparent magnitude 6.07 and has spectral type G0IV.

Its spectrum reads G0IV — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for 39 Ser in the constellation Ser. At apparent magnitude 6.07, it is an easy target for binoculars.

Like any astronomical target, 39 Ser 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 39 Ser is a common star

39 Ser 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 3 science badges — Star, Sun-like G-type star and Subgiant (leaving the main sequence) — 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.