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Uncommon star 31 EP

HR 5547

RA 225.0472° · Dec -77.1606° · star

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Score breakdown

· 4 badges
31 pts · Uncommon
Uncommon 34 pts → Rare
  • Bright giant +12
  • Naked-eye visible +8
  • Sun-like G-type star +8
  • Star +3
Total score 31

3 more points to reach Rare.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Sun-like G-type star · +8
  • Bright giant · +12

Trivia

What it actually is

  • Spectral class. Its spectrum reads G8II — a G-type star: the very same spectral class as our own Sun.
  • 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 5.9 you can see it with your own eyes from a dark site, over in Apus.
  • Southern sky only. So far south it never rises for most of the northern hemisphere. To see it you'd have to travel to Chile, South Africa or Australia.
  • Best time of year. It stands highest in the middle of the night around May — 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. ≈ 13.4 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-0.923
bv
1.052
constellation
Aps
dist ly
762.0469
luminosity
203.798
mag
5.92
name
HR 5547
spect
G8II

About HR 5547

HR 5547 is an uncommon star. It lies about 762 light-years from Earth, sits in the constellation Aps, shines at apparent magnitude 5.92 and has spectral type G8II.

Its spectrum reads G8II — a G-type star: the very same spectral class as our own Sun.

How to see it

Look for HR 5547 in the constellation Aps. At apparent magnitude 5.92, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, HR 5547 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 HR 5547 is an uncommon star

HR 5547 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 4 science badges — Star, Naked-eye visible, Sun-like G-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.