K-type star · orange
Aljanah
Aljanah is an orange in the constellation Cygnus 72.7 ly from Earth. Its surface is about 4,693 K, about 0.8 times the Sun's surface temperature, and it shines at 44.10× the Sun's brightness. At magnitude 2.5 it is bright enough to see with the naked eye; the light you see left it 73 years ago.
Also catalogued as Epsilon Cyg · HR 7949 · HD 197989 · HIP 102488 · Gliese Gl 806.1A
4,693 K
temperature
2.48
apparent magnitude
44.10× ☉
luminosity vs Sun
K0III
spectral type
Distance & comparison with our Sun
73 years
at light speed from Earth
0.81×
as hot as the Sun
44.10×
the Sun's light output
0.74
absolute magnitude
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VISIBLE TO THE NAKED EYE
Star data from the HYG database v4.2 (Astronexus, CC BY-SA 4.0). Temperature and colour computed by gravityfinder from the B-V colour index; the illustration is generated from that temperature, not a photograph.