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Epic star 51 EP

HR 5358

RA 215.0814° · Dec -56.3865° · star

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Score breakdown

· 6 badges
51 pts · Epic
Epic 78 pts → Anomaly
  • Supergiant +18
  • Intrinsically luminous (Mv < −2) +10
  • Naked-eye visible +8
  • Distant (over 1,000 light-years) +6
  • Hot blue B-type star +6
  • Star +3
Total score 51

27 more points to reach Anomaly.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • Naked-eye visible · +8
  • Hot blue B-type star · +6
  • Supergiant · +18
  • Intrinsically luminous (Mv < −2) · +10

Trivia

What it actually is

  • Spectral class. Its spectrum reads B6Ib — a blue-white B-type star, with a surface tens of thousands of degrees hot and a life measured in tens of millions of years.
  • Where it is in life. It is a supergiant, hundreds of times wider than the Sun.

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 4.3 you can see it with your own eyes from a dark site, over in Centaurus.
  • 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 April — 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. ≈ 21.5 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-3.576
bv
0.082
constellation
Cen
dist ly
1226.1502
luminosity
2346.3889
mag
4.3
name
HR 5358
spect
B6Ib

About HR 5358

HR 5358 is an epic star. It lies about 1,226.2 light-years from Earth, sits in the constellation Cen, shines at apparent magnitude 4.3 and has spectral type B6Ib.

Its spectrum reads B6Ib — a blue-white B-type star, with a surface tens of thousands of degrees hot and a life measured in tens of millions of years.

How to see it

Look for HR 5358 in the constellation Cen. At apparent magnitude 4.3, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, HR 5358 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 5358 is an epic star

HR 5358 scores 51 points on Spacedle's rarity scale, which places it in the epic tier. Another 27 points would lift it into a rarer tier.

That score comes from 6 science badges — Star, Distant (over 1,000 light-years), Naked-eye visible, Hot blue B-type star, Supergiant and Intrinsically luminous (Mv < −2) — 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.