A-type star · white star

HR 6642

HR 6642 is a white star in the constellation Hercules 540 ly from Earth. Its surface is about 9,835 K, about 1.7 times the Sun's surface temperature, and it shines at 84.33× the Sun's brightness. At magnitude 6.1 it is within reach of 50 mm binoculars; the light you see left it 540 years ago.

540 lybrightness mag 6.13A1V

Also catalogued as HD 162161 · HIP 87192

9,835 K
temperature
6.13
apparent magnitude
84.33× ☉
luminosity vs Sun
A1V
spectral type
Distance & comparison with our Sun
540 years
at light speed from Earth
1.70×
as hot as the Sun
84.33×
the Sun's light output
0.04
absolute magnitude
Explore from here · roam the neighborhood
HR 6642A-type
Sky regionHerculesthis direction
StarHR 658945 ly
StarHR 659253 ly
StarHR 650267 ly
StarKornephorosstar
StarRasalgethistar
Nearest stars
Bright stars in Hercules
Can you see it tonight?
BINOCULARS NEEDED
Brightness mag 6.1To see it 50 mm binocularsLook toward Hercules

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.