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Common star 20 EP

HR 4772

RA 187.9113° · Dec -5.0526° · star

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Score breakdown

· 4 badges
20 pts · Common
Common 22 pts → Uncommon
  • Sun-like G-type star +8
  • Giant star +6
  • Star +3
  • On the zodiac +3
Total score 20

2 more points to reach Uncommon.

Badges

  • Star · +3
  • On the zodiac · +3
  • Sun-like G-type star · +8
  • Giant star · +6

Trivia

What it actually is

  • Spectral class. Its spectrum reads G9III: — a G-type star: the very same spectral class as our own Sun.
  • Where it is in life. It is a giant. It has already exhausted its core hydrogen and swollen up enormously in response.

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 6.2 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Virgo.
  • Seen from everywhere. It sits almost on the celestial equator, so it can be seen from essentially anywhere on Earth.
  • Best time of year. It stands highest in the middle of the night around March — 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. ≈ 7.1 million years at Voyager 1's speed (17 km/s).

Properties

absmag
0.722
bv
1.041
constellation
Vir
dist ly
404.6601
luminosity
44.792
mag
6.19
name
HR 4772
spect
G9III:

About HR 4772

HR 4772 is a common star. It lies about 404.7 light-years from Earth, sits in the constellation Vir, shines at apparent magnitude 6.19 and has spectral type G9III:.

Its spectrum reads G9III: — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HR 4772 in the constellation Vir. At apparent magnitude 6.19, it is an easy target for binoculars.

Like any astronomical target, HR 4772 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 HR 4772 is a common star

HR 4772 scores 20 points on Spacedle's rarity scale, which places it in the common tier. Another 2 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, On the zodiac, Sun-like G-type star and Giant 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.