F-type star · yellow-white star
40 Dra
40 Dra is a yellow-white star in the constellation Draco 237 ly from Earth. Its surface is about 6,295 K, about 1.1 times the Sun's surface temperature, and it shines at 16.52× the Sun's brightness. At magnitude 6.1 it is within reach of 50 mm binoculars; the light you see left it 237 years ago.
Also catalogued as HR 6809 · HD 166865 · HIP 88127
6,295 K
temperature
6.11
apparent magnitude
16.52× ☉
luminosity vs Sun
K2Vvar
spectral type
Distance & comparison with our Sun
237 years
at light speed from Earth
1.09×
as hot as the Sun
16.52×
the Sun's light output
1.80
absolute magnitude
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BINOCULARS NEEDED
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.