K-type star · orange
Rastaban
Rastaban is an orange in the constellation Draco 380 ly from Earth. Its surface is about 4,856 K, about 0.8 times the Sun's surface temperature, and it shines at 906× the Sun's brightness. At magnitude 2.8 it is bright enough to see with the naked eye; the light you see left it 380 years ago.
Also catalogued as Beta Dra · HR 6536 · HD 159181 · HIP 85670
4,856 K
temperature
2.79
apparent magnitude
906× ☉
luminosity vs Sun
G2II
spectral type
Distance & comparison with our Sun
380 years
at light speed from Earth
0.84×
as hot as the Sun
906×
the Sun's light output
-2.54
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.