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Common star 20 EP

HD 17832

RA 42.4206° · Dec -52.7585° · star

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Score breakdown

· 4 badges
20 pts · Common
Common 22 pts → Uncommon
  • Distant (over 1,000 light-years) +6
  • Giant star +6
  • Cool red M-type star +5
  • Star +3
Total score 20

2 more points to reach Uncommon.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • Cool red M-type star · +5
  • Giant star · +6

Trivia

What it actually is

  • Spectral class. Its spectrum reads M5/M6III — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.

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 8 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Horologium.
  • 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 November — that's when to go looking.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 21.1 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 1.9 million years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
0.185
bv
1.322
constellation
Hor
dist ly
1203.5277
luminosity
73.4514
mag
8.02
name
HD 17832
spect
M5/M6III

About HD 17832

HD 17832 is a common star. It lies about 1,203.5 light-years from Earth, sits in the constellation Hor, shines at apparent magnitude 8.02 and has spectral type M5/M6III.

Its spectrum reads M5/M6III — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.

How to see it

Look for HD 17832 in the constellation Hor. At apparent magnitude 8.02, it is an easy target for binoculars.

Like any astronomical target, HD 17832 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 HD 17832 is a common star

HD 17832 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, Distant (over 1,000 light-years), Cool red M-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.