B-type star · blue-white star
17 Aur
17 Aur is a blue-white star in the constellation Auriga 398 ly from Earth. Its surface is about 10,695 K, about 1.9 times the Sun's surface temperature, and it shines at 45.04× the Sun's brightness. At magnitude 6.2 it is within reach of 50 mm binoculars; the light you see left it 398 years ago.
Also catalogued as HR 1728 · HD 34364 · HIP 24740
10,695 K
temperature
6.15
apparent magnitude
45.04× ☉
luminosity vs Sun
B9.5V
spectral type
Distance & comparison with our Sun
398 years
at light speed from Earth
1.85×
as hot as the Sun
45.04×
the Sun's light output
0.72
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.