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Rare star 43 EP

HD 161327

RA 266.5066° · Dec -26.9723° · star

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Score breakdown

· 6 badges
43 pts · Rare
Rare 50 pts → Epic
  • Supergiant +18
  • Toward the galactic centre +8
  • Distant (over 1,000 light-years) +6
  • White A-type star +5
  • Star +3
  • On the zodiac +3
Total score 43

7 more points to reach Epic.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • Toward the galactic centre · +8
  • On the zodiac · +3
  • White A-type star · +5
  • Supergiant · +18

Trivia

What it actually is

  • Spectral class. Its spectrum reads A0Iab-Ib — 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 supergiant. Drop it where the Sun is and its surface would engulf the inner planets.

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 7.4 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 June — 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. ≈ 24.8 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-0.772
bv
0.604
constellation
Sgr
dist ly
1411.9306
luminosity
177.3373
mag
7.41
name
HD 161327
spect
A0Iab-Ib

About HD 161327

HD 161327 is a rare star. It lies about 1,411.9 light-years from Earth, sits in the constellation Sgr, shines at apparent magnitude 7.41 and has spectral type A0Iab-Ib.

Its spectrum reads A0Iab-Ib — 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 161327 in the constellation Sgr. At apparent magnitude 7.41, it is an easy target for binoculars.

Like any astronomical target, HD 161327 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 161327 is a rare star

HD 161327 scores 43 points on Spacedle's rarity scale, which places it in the rare tier. Another 7 points would lift it into a rarer tier.

That score comes from 6 science badges — Star, Distant (over 1,000 light-years), Toward the galactic centre, On the zodiac, White A-type star and Supergiant — 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.