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Rare star 49 EP

29 Sgr

RA 282.4171° · Dec -20.3247° · star

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Score breakdown

· 8 badges
49 pts · Rare
Rare 50 pts → Epic
  • Intrinsically luminous (Mv < −2) +10
  • Naked-eye visible +8
  • Toward the galactic centre +8
  • Deep red star +8
  • Giant star +6
  • Star +3
  • On the zodiac +3
  • Orange K-type star +3
Total score 49

1 more point to reach Epic.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Toward the galactic centre · +8
  • On the zodiac · +3
  • Orange K-type star · +3
  • Giant star · +6
  • Deep red star · +8
  • Intrinsically luminous (Mv < −2) · +10

Trivia

What it actually is

  • Spectral class. Its spectrum reads K2III — 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 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 5.2 you can see it with your own eyes from a dark site, over in Sagittarius.
  • 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 July — 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. ≈ 16.4 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-2.066
bv
1.404
constellation
Sgr
dist ly
934.5446
luminosity
583.9827
mag
5.22
name
29 Sgr
spect
K2III

About 29 Sgr

29 Sgr is a rare star. It lies about 934.5 light-years from Earth, sits in the constellation Sgr, shines at apparent magnitude 5.22 and has spectral type K2III.

Its spectrum reads K2III — 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 29 Sgr in the constellation Sgr. At apparent magnitude 5.22, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, 29 Sgr 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 29 Sgr is a rare star

29 Sgr scores 49 points on Spacedle's rarity scale, which places it in the rare tier. Another 1 point would lift it into a rarer tier.

That score comes from 8 science badges — Star, Naked-eye visible, Toward the galactic centre, On the zodiac, Orange K-type star, Giant star, Deep red star and Intrinsically luminous (Mv < −2) — 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.