A-type star · white star
HR 3689
HR 3689 is a white star in the constellation Cancer 645 ly from Earth. Its surface is about 9,076 K, about 1.6 times the Sun's surface temperature, and it shines at 93.67× the Sun's brightness. At magnitude 6.4 it is within reach of 50 mm binoculars; the light you see left it 645 years ago.
Also catalogued as HD 80064 · HIP 45614
9,076 K
temperature
6.40
apparent magnitude
93.67× ☉
luminosity vs Sun
A2IV
spectral type
Distance & comparison with our Sun
645 years
at light speed from Earth
1.57×
as hot as the Sun
93.67×
the Sun's light output
-0.08
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.