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Epic variable star 57 EP

HD 152248

RA 253.5419° · Dec -41.8250° · star

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Score breakdown

· 7 badges
57 pts · Epic
Epic 78 pts → Anomaly
  • Blazing O-type star +26
  • Intrinsically luminous (Mv < −2) +10
  • Distant (over 1,000 light-years) +6
  • Variable star +5
  • Gently variable +4
  • On the zodiac +3
  • A named variable star +3
Total score 57

21 more points to reach Anomaly.

Badges

  • Variable star · +5
  • Distant (over 1,000 light-years) · +6
  • On the zodiac · +3
  • Blazing O-type star · +26
  • Intrinsically luminous (Mv < −2) · +10
  • Gently variable · +4
  • A named variable star · +3

Trivia

What it actually is

  • Spectral class. Its spectrum reads O7e — an O-type star — the hottest, rarest main class there is. Fewer than one star in a million is an O, and none of them lasts long.
  • It changes. This star does not hold still: its brightness rises and falls on a rhythm of hours, days or years, either pulsing in size or being eclipsed by a companion.

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 6.1 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Scorpius.
  • 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. ≈ 23.9 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-2.029
bv
0.126
constellation
Sco
dist ly
1358.9834
luminosity
564.4169
mag
6.07
name
HD 152248
spect
O7e
var amplitude
0.14
var designation
V1007
var max
6.043
var min
6.183

About HD 152248

HD 152248 is an epic variable star. It lies about 1,359 light-years from Earth, sits in the constellation Sco, shines at apparent magnitude 6.07 and has spectral type O7e.

Its spectrum reads O7e — an O-type star — the hottest, rarest main class there is. Fewer than one star in a million is an O, and none of them lasts long.

How to see it

Look for HD 152248 in the constellation Sco. At apparent magnitude 6.07, it is an easy target for binoculars.

Like any astronomical target, HD 152248 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 152248 is an epic variable star

HD 152248 scores 57 points on Spacedle's rarity scale, which places it in the epic tier. Another 21 points would lift it into a rarer tier.

That score comes from 7 science badges — Variable star, Distant (over 1,000 light-years), On the zodiac, Blazing O-type star, Intrinsically luminous (Mv < −2), Gently variable and A named variable star — 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.