A-type star · white star
HR 7940
HR 7940 is a white star in the constellation Cepheus. Its surface is about 7,578 K, about 1.3 times the Sun's surface temperature, and it shines at 25,351,286× the Sun's brightness. At magnitude 6.3 it is within reach of 50 mm binoculars.
brightness mag 6.34B2III
Also catalogued as HD 197770 · HIP 102258
7,578 K
temperature
6.34
apparent magnitude
25,351,286× ☉
luminosity vs Sun
B2III
spectral type
Distance & comparison with our Sun
–
at light speed from Earth
1.31×
as hot as the Sun
25,351,286×
the Sun's light output
-13.66
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.