← Back to dex
Common star 17 EP

HD 30712

RA 72.6409° · Dec 15.0835° · star

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

Computing the sky for your location…

Score breakdown

· 3 badges
17 pts · Common
Common 22 pts → Uncommon
  • Sun-like G-type star +8
  • In Orion's hunting ground +6
  • Star +3
Total score 17

5 more points to reach Uncommon.

Badges

  • Star · +3
  • In Orion's hunting ground · +6
  • Sun-like G-type star · +8

Trivia

What it actually is

  • Spectral class. Its spectrum reads G5 — a G-type star: the very same spectral class as our own 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 7.7 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Orion.
  • 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 December — 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. ≈ 2.4 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 215 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
4.603
bv
0.74
constellation
Ori
dist ly
137.6766
luminosity
1.2555
mag
7.73
name
HD 30712
spect
G5

About HD 30712

HD 30712 is a common star. It lies about 137.7 light-years from Earth, sits in the constellation Ori, shines at apparent magnitude 7.73 and has spectral type G5.

Its spectrum reads G5 — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HD 30712 in the constellation Ori. At apparent magnitude 7.73, it is an easy target for binoculars.

Like any astronomical target, HD 30712 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 30712 is a common star

HD 30712 scores 17 points on Spacedle's rarity scale, which places it in the common tier. Another 5 points would lift it into a rarer tier.

That score comes from 3 science badges — Star, In Orion's hunting ground and Sun-like G-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.