Star
Aljanah
Orange star · K0III
ε Cygni · Cygnus
Shown in its true colour — like most stars, it is too far away to photograph as more than a point of light.
Epsilon Cygni is a binary star system in the constellation of Cygnus. Its name is a Bayer designation. With an apparent visual magnitude of 2.48, it is readily visible to the naked eye at night, and is the third-brightest star in the constellation. Based upon parallax measurement, Epsilon Cygni is about 73 light-years distant.
Description from Wikipedia (CC BY-SA 4.0).
In your sky
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Key facts
Distance
~72.7 light-years
Apparent mag.
+2.48
Spectral type
K0III
Luminosity
44.1 × Sun
Absolute mag.
+0.74
Catalogue
HIP 102488
Spectral type
K0III
True colour from its B–V index (1.02): a surface around 4700 K.
Did you know
- Aljanah is also known as ε Cygni.
- Its spectral type K0III marks it as a orange star.
- It lies in the constellation Cygnus.
