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Common star 20 EP

HR 665

RA 34.2935° · Dec 23.7678° · 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 6.5 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Aries.
  • 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 October — 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. ≈ 9.4 million years at Voyager 1's speed (17 km/s).

Properties

absmag
0.464
bv
1.025
constellation
Ari
dist ly
532.9347
luminosity
56.8068
mag
6.53
name
HR 665
spect
G9III

About HR 665

HR 665 is a common star. It lies about 532.9 light-years from Earth, sits in the constellation Ari, shines at apparent magnitude 6.53 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 665 in the constellation Ari. At apparent magnitude 6.53, it is an easy target for binoculars.

Like any astronomical target, HR 665 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 665 is a common star

HR 665 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.