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Uncommon star 23 EP

HD 157059

RA 260.6415° · Dec -35.3821° · star

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Score breakdown

· 4 badges
23 pts · Uncommon
Uncommon 34 pts → Rare
  • Bright giant +12
  • White A-type star +5
  • Star +3
  • On the zodiac +3
Total score 23

11 more points to reach Rare.

Badges

  • Star · +3
  • On the zodiac · +3
  • White A-type star · +5
  • Bright giant · +12

Trivia

What it actually is

  • Spectral class. Its spectrum reads A3II/III — 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.
  • 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 8 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Scorpius.
  • 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 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. ≈ 15 million years at Voyager 1's speed (17 km/s).

Properties

absmag
0.915
bv
0.259
constellation
Sco
dist ly
856.0525
luminosity
37.4973
mag
8.01
name
HD 157059
spect
A3II/III

About HD 157059

HD 157059 is an uncommon star. It lies about 856.1 light-years from Earth, sits in the constellation Sco, shines at apparent magnitude 8.01 and has spectral type A3II/III.

Its spectrum reads A3II/III — 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 HD 157059 in the constellation Sco. At apparent magnitude 8.01, it is an easy target for binoculars.

Like any astronomical target, HD 157059 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 157059 is an uncommon star

HD 157059 scores 23 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 11 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, On the zodiac, White A-type star and Bright giant — 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.