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Uncommon star 31 EP

HD 176745

RA 285.5559° · Dec -13.2538° · star

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Score breakdown

· 5 badges
31 pts · Uncommon
Uncommon 34 pts → Rare
  • Bright giant +12
  • Toward the galactic centre +8
  • White A-type star +5
  • Star +3
  • On the zodiac +3
Total score 31

3 more points to reach Rare.

Badges

  • Star · +3
  • Toward the galactic centre · +8
  • On the zodiac · +3
  • White A-type star · +5
  • Bright giant · +12

Trivia

What it actually is

  • Spectral class. Its spectrum reads A0II/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 7.8 it is just past naked-eye reach — ordinary binoculars will pull it in, 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. ≈ 10.8 million years at Voyager 1's speed (17 km/s).

Properties

absmag
1.431
bv
0.176
constellation
Sgr
dist ly
615.3885
luminosity
23.3131
mag
7.81
name
HD 176745
spect
A0II/III

About HD 176745

HD 176745 is an uncommon star. It lies about 615.4 light-years from Earth, sits in the constellation Sgr, shines at apparent magnitude 7.81 and has spectral type A0II/III.

Its spectrum reads A0II/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 176745 in the constellation Sgr. At apparent magnitude 7.81, it is an easy target for binoculars.

Like any astronomical target, HD 176745 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 176745 is an uncommon star

HD 176745 scores 31 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 3 points would lift it into a rarer tier.

That score comes from 5 science badges — Star, Toward the galactic centre, 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.