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Uncommon star 27 EP

HIP 21186

RA 68.1268° · Dec 4.1395° · star

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Score breakdown

· 6 badges
27 pts · Uncommon
Uncommon 34 pts → Rare
  • Deep red star +8
  • Red dwarf +6
  • Cool red M-type star +5
  • Star +3
  • On the zodiac +3
  • Main-sequence star +2
Total score 27

7 more points to reach Rare.

Badges

  • Star · +3
  • On the zodiac · +3
  • Cool red M-type star · +5
  • Main-sequence star · +2
  • Deep red star · +8
  • Red dwarf · +6

Trivia

What it actually is

  • Spectral class. Its spectrum reads M0V: — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.
  • Where it is in life. It is on the main sequence, quietly fusing hydrogen in its core exactly as the Sun does.

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 11 you'll want a small backyard telescope, over in Taurus.
  • Seen from everywhere. It sits almost on the celestial equator, so it can be seen from essentially anywhere on Earth.
  • 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. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 2.2 million years at Voyager 1's speed (17 km/s).

Properties

absmag
8.092
bv
1.51
constellation
Tau
dist ly
126.1725
luminosity
0.0505
mag
11.03
name
HIP 21186
spect
M0V:

About HIP 21186

HIP 21186 is an uncommon star. It lies about 126.2 light-years from Earth, sits in the constellation Tau, shines at apparent magnitude 11.03 and has spectral type M0V:.

Its spectrum reads M0V: — 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 HIP 21186 in the constellation Tau. At apparent magnitude 11.03, a small backyard telescope will bring it into view.

Like any astronomical target, HIP 21186 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 HIP 21186 is an uncommon star

HIP 21186 scores 27 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 7 points would lift it into a rarer tier.

That score comes from 6 science badges — Star, On the zodiac, Cool red M-type star, Main-sequence star, Deep red star and Red dwarf — 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.