F-type star · yellow-white star
HR 641
HR 641 is a yellow-white star in the constellation Perseus. Its surface is about 6,154 K, about 1.1 times the Sun's surface temperature, and it shines at 23,334,581× the Sun's brightness. At magnitude 6.4 it is within reach of 50 mm binoculars.
brightness mag 6.43A3Iab
Also catalogued as HD 13476 · HIP 10379
6,154 K
temperature
6.43
apparent magnitude
23,334,581× ☉
luminosity vs Sun
A3Iab
spectral type
Distance & comparison with our Sun
–
at light speed from Earth
1.07×
as hot as the Sun
23,334,581×
the Sun's light output
-13.57
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.