Star
Markab
Blue-white star · B9.5III
α Pegasi · Pegasus
Shown in its true colour — like most stars, it is too far away to photograph as more than a point of light.
Alpha Pegasi, formally named Markab, is the third-brightest star in the constellation of Pegasus and one of the four stars in the asterism known as the Great Square of Pegasus.
Description from Wikipedia (CC BY-SA 4.0).
In your sky
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Key facts
Distance
~133 light-years
Apparent mag.
+2.49
Spectral type
B9.5III
Luminosity
147 × Sun
Absolute mag.
−0.57
Catalogue
HIP 113963
Spectral type
B9.5III
True colour from its B–V index (0.00): a surface around 10100 K.
Did you know
- Markab is also known as α Pegasi.
- Its spectral type B9.5III marks it as a blue-white star.
- It lies in the constellation Pegasus.
