F-type star · yellow-white star

HR 3991

HR 3991 is a yellow-white star in the constellation Hydra 90.5 ly from Earth. Its surface is about 7,055 K, about 1.2 times the Sun's surface temperature, and it shines at 5.08× the Sun's brightness. At magnitude 5.3 it is bright enough to see with the naked eye; the light you see left it 90 years ago.

90.5 lybrightness mag 5.30F2/F3IV/V

Also catalogued as HD 88215 · HIP 49809

7,055 K
temperature
5.30
apparent magnitude
5.08× ☉
luminosity vs Sun
F2/F3IV/V
spectral type
Distance & comparison with our Sun
90 years
at light speed from Earth
1.22×
as hot as the Sun
5.08×
the Sun's light output
3.08
absolute magnitude
Explore from here · roam the neighborhood
HR 3991F-type
Sky regionHydrathis direction
StarHR 415813 ly
StarLambda Hya22 ly
StarHR 375022 ly
StarGamma Hyastar
StarZeta Hyastar
Nearest stars
Bright stars in Hydra
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.3To see it no equipment neededLook toward Hydra

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.