← Back to dex
Trash star 6 EP

HD 212107

RA 335.2144° · Dec 46.0622° · star

Loading sky survey…
🌌 View in 3D star map
Tonight’s visibility

Computing the sky for your location…

Score breakdown

· 2 badges
6 pts · Trash
Trash 15 pts → Common
  • Star +3
  • Yellow-white F-type star +3
Total score 6

9 more points to reach Common.

Badges

  • Star · +3
  • Yellow-white F-type star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads F5 — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

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 7.4 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Lacerta.
  • 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 August — 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. ≈ 2.8 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 246.9 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
4.002
bv
0.474
constellation
Lac
dist ly
158.0979
luminosity
2.1837
mag
7.43
name
HD 212107
spect
F5

About HD 212107

HD 212107 is a trash star. It lies about 158.1 light-years from Earth, sits in the constellation Lac, shines at apparent magnitude 7.43 and has spectral type F5.

Its spectrum reads F5 — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for HD 212107 in the constellation Lac. At apparent magnitude 7.43, it is an easy target for binoculars.

Like any astronomical target, HD 212107 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 HD 212107 is a trash star

HD 212107 scores 6 points on Spacedle's rarity scale, which places it in the trash tier. Another 9 points would lift it into a rarer tier.

That score comes from 2 science badges — Star and Yellow-white F-type 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.