M-type star · red

HD 7733

HD 7733 is a red in the constellation Cassiopeia 1,136 ly from Earth. Its surface is about 3,664 K, about 0.6 times the Sun's surface temperature, and it shines at 294× the Sun's brightness. At magnitude 6.4 it is within reach of 50 mm binoculars; the light you see left it 1,136 years ago.

1,136 lybrightness mag 6.39M5

Also catalogued as HIP 6093

3,664 K
temperature
6.39
apparent magnitude
294× ☉
luminosity vs Sun
M5
spectral type
Distance & comparison with our Sun
1,136 years
at light speed from Earth
0.63×
as hot as the Sun
294×
the Sun's light output
-1.32
absolute magnitude
Explore from here · roam the neighborhood
HD 7733M-type
Sky regionCassiopeiathis direction
StarHR 181100 ly
Star44 Cas120 ly
StarHR 298130 ly
StarCihstar
StarSchedarstar
Nearest stars
Bright stars in Cassiopeia
Can you see it tonight?
BINOCULARS NEEDED
Brightness mag 6.4To see it 50 mm binocularsLook toward Cassiopeia

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.