B-type star · blue-white star

15 Cnc

15 Cnc is a blue-white star in the constellation Cancer 684 ly from Earth. Its surface is about 11,138 K, about 1.9 times the Sun's surface temperature, and it shines at 216× the Sun's brightness. At magnitude 5.6 it is bright enough to see with the naked eye; the light you see left it 684 years ago.

684 lybrightness mag 5.62B9p SiCr

Also catalogued as HR 3215 · HD 68351 · HIP 40240

11,138 K
temperature
5.62
apparent magnitude
216× ☉
luminosity vs Sun
B9p SiCr
spectral type
Distance & comparison with our Sun
684 years
at light speed from Earth
1.93×
as hot as the Sun
216×
the Sun's light output
-0.99
absolute magnitude
Explore from here · roam the neighborhood
15 CncB-type
Sky regionCancerthis direction
StarOmega¹ Cnc63 ly
StarPi Gem81 ly
Star76 Gem99 ly
StarTarfstar
StarAsellus Australisstar
Nearest stars
Bright stars in Cancer
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.6To see it no equipment neededLook toward Cancer

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.