B-type star · blue-white star

HR 3642

HR 3642 is a blue-white star in the constellation Carina 968 ly from Earth. Its surface is about 12,469 K, about 2.2 times the Sun's surface temperature, and it shines at 1,049× the Sun's brightness. At magnitude 4.7 it is bright enough to see with the naked eye; the light you see left it 968 years ago.

968 lybrightness mag 4.66B2IVe

Also catalogued as HD 78764 · HIP 44626

12,469 K
temperature
4.66
apparent magnitude
1,049× ☉
luminosity vs Sun
B2IVe
spectral type
Distance & comparison with our Sun
968 years
at light speed from Earth
2.16×
as hot as the Sun
1,049×
the Sun's light output
-2.70
absolute magnitude
Explore from here · roam the neighborhood
HR 3642B-type
Sky regionCarinathis direction
StarHR 349161 ly
StarHR 4142140 ly
StarHR 4129160 ly
StarMiaplacidusstar
StarAviorstar
Nearest stars
Bright stars in Carina
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 4.7To see it no equipment neededLook toward Carina

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.