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Rare star 34 EP

HR 6433

RA 259.6541° · Dec 10.8645° · star

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Score breakdown

· 5 badges
34 pts · Rare
Rare 50 pts → Epic
  • Bright giant +12
  • Naked-eye visible +8
  • Deep red star +8
  • Star +3
  • Orange K-type star +3
Total score 34

16 more points to reach Epic.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Orange K-type star · +3
  • Bright giant · +12
  • Deep red star · +8

Trivia

What it actually is

  • Spectral class. Its spectrum reads K4II-III — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.
  • Where it is in life. It is a bright giant, well on its way to the largest stars there are.

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 you can see it with your own eyes from a dark site, over in Ophiuchus.
  • 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 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. ≈ 8.7 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-0.866
bv
1.539
constellation
Oph
dist ly
492.6828
luminosity
193.3749
mag
5.03
name
HR 6433
spect
K4II-III

About HR 6433

HR 6433 is a rare star. It lies about 492.7 light-years from Earth, sits in the constellation Oph, shines at apparent magnitude 5.03 and has spectral type K4II-III.

Its spectrum reads K4II-III — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.

How to see it

Look for HR 6433 in the constellation Oph. At apparent magnitude 5.03, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, HR 6433 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 6433 is a rare star

HR 6433 scores 34 points on Spacedle's rarity scale, which places it in the rare tier. Another 16 points would lift it into a rarer tier.

That score comes from 5 science badges — Star, Naked-eye visible, Orange K-type star, Bright giant and Deep red 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.