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Epic star 55 EP

Albaldah

RA 287.4410° · Dec -21.0236° · star

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Score breakdown

· 8 badges
55 pts · Epic
Epic 78 pts → Anomaly
  • Bright giant +12
  • Intrinsically luminous (Mv < −2) +10
  • Naked-eye visible +8
  • Has a proper name +8
  • Toward the galactic centre +8
  • Star +3
  • On the zodiac +3
  • Yellow-white F-type star +3
Total score 55

23 more points to reach Anomaly.

Badges

  • Star · +3
  • Naked-eye visible · +8
  • Has a proper name · +8
  • Toward the galactic centre · +8
  • On the zodiac · +3
  • Yellow-white F-type star · +3
  • Bright giant · +12
  • Intrinsically luminous (Mv < −2) · +10

Trivia

What it actually is

  • Spectral class. Its spectrum reads F2II/III — an F-type star — a little hotter, whiter and shorter-lived than the 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 2.9 you can see it with your own eyes from a dark site, 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 July — 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. ≈ 9 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-3.089
bv
0.377
constellation
Sgr
dist ly
509.6187
luminosity
1498.3042
mag
2.88
name
Albaldah
named
yes
spect
F2II/III

About Albaldah

Albaldah is an epic star. It lies about 509.6 light-years from Earth, sits in the constellation Sgr, shines at apparent magnitude 2.88 and has spectral type F2II/III.

Its spectrum reads F2II/III — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for Albaldah in the constellation Sgr. At apparent magnitude 2.88, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, Albaldah 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 Albaldah is an epic star

Albaldah scores 55 points on Spacedle's rarity scale, which places it in the epic tier. Another 23 points would lift it into a rarer tier.

That score comes from 8 science badges — Star, Naked-eye visible, Has a proper name, Toward the galactic centre, On the zodiac, Yellow-white F-type star, Bright giant 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.