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Common star 17 EP

HR 6366

RA 257.1981° · Dec -30.4037° · star

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Score breakdown

· 4 badges
17 pts · Common
Common 22 pts → Uncommon
  • Naked-eye visible +8
  • Star +3
  • On the zodiac +3
  • Yellow-white F-type star +3
Total score 17

5 more points to reach Uncommon.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • On the zodiac · +3
  • Yellow-white F-type star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads Fm — 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 5.9 you can see it with your own eyes from a dark site, over in Scorpius.
  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around June — 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. ≈ 4.5 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 398.5 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
1.463
bv
0.276
constellation
Sco
dist ly
255.2083
luminosity
22.636
mag
5.93
name
HR 6366
spect
Fm

About HR 6366

HR 6366 is a common star. It lies about 255.2 light-years from Earth, sits in the constellation Sco, shines at apparent magnitude 5.93 and has spectral type Fm.

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

How to see it

Look for HR 6366 in the constellation Sco. At apparent magnitude 5.93, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, HR 6366 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 6366 is a common star

HR 6366 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 4 science badges — Star, Naked-eye visible, On the zodiac 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.