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Epic star 50 EP

HR 7573

RA 298.0066° · Dec 24.9922° · star

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Score breakdown

· 6 badges
50 pts · Epic
Epic 78 pts → Anomaly
  • Supergiant +18
  • Intrinsically luminous (Mv < −2) +10
  • Naked-eye visible +8
  • Distant (over 1,000 light-years) +6
  • White A-type star +5
  • Star +3
Total score 50

28 more points to reach Anomaly.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • Naked-eye visible · +8
  • White A-type star · +5
  • Supergiant · +18
  • Intrinsically luminous (Mv < −2) · +10

Trivia

What it actually is

  • Spectral class. Its spectrum reads A1Iab — 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 5.5 you can see it with your own eyes from a dark site, over in Vulpecula.
  • Northern sky. It rides the northern half of the sky — an easier target the further north 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. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 29.7 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-3.032
bv
0.68
constellation
Vul
dist ly
1689.9274
luminosity
1421.6739
mag
5.54
name
HR 7573
spect
A1Iab

About HR 7573

HR 7573 is an epic star. It lies about 1,689.9 light-years from Earth, sits in the constellation Vul, shines at apparent magnitude 5.54 and has spectral type A1Iab.

Its spectrum reads A1Iab — 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 HR 7573 in the constellation Vul. At apparent magnitude 5.54, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, HR 7573 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 7573 is an epic star

HR 7573 scores 50 points on Spacedle's rarity scale, which places it in the epic tier. Another 28 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, White A-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.