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Common star 16 EP

HIP 15973

RA 51.4151° · Dec -42.9867° · star

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Score breakdown

· 3 badges
16 pts · Common
Common 22 pts → Uncommon
  • Deep red star +8
  • White A-type star +5
  • Star +3
Total score 16

6 more points to reach Uncommon.

Badges

  • Star · +3
  • White A-type star · +5
  • Deep red star · +8

Trivia

What it actually is

  • Spectral class. Its spectrum reads A5 — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.

Sense of scale

  • In perspective. Inside our stellar backyard: every radio broadcast humanity has ever made has already swept past it.

Find it in the sky

  • How to spot it. At magnitude 11.3 you'll want a small backyard telescope, over in Eridanus.
  • 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. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 1.3 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 118.7 thousand years even at the Parker Solar Probe's 192 km/s.

Properties

absmag
9.423
bv
1.439
constellation
Eri
dist ly
75.9917
luminosity
0.0148
mag
11.26
name
HIP 15973
spect
A5

About HIP 15973

HIP 15973 is a common star. It lies about 76 light-years from Earth, sits in the constellation Eri, shines at apparent magnitude 11.26 and has spectral type A5.

Its spectrum reads A5 — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.

How to see it

Look for HIP 15973 in the constellation Eri. At apparent magnitude 11.26, a small backyard telescope will bring it into view.

Like any astronomical target, HIP 15973 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 15973 is a common star

HIP 15973 scores 16 points on Spacedle's rarity scale, which places it in the common tier. Another 6 points would lift it into a rarer tier.

That score comes from 3 science badges — Star, White A-type star 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.