A-type star · white star

HR 2449

HR 2449 is a white star in the constellation Gemini 257 ly from Earth. Its surface is about 9,402 K, about 1.6 times the Sun's surface temperature, and it shines at 21.76× the Sun's brightness. At magnitude 6.0 it is bright enough to see with the naked eye; the light you see left it 257 years ago.

257 lybrightness mag 5.99A2V

Also catalogued as HD 47575 · HIP 31876

9,402 K
temperature
5.99
apparent magnitude
21.76× ☉
luminosity vs Sun
A2V
spectral type
Distance & comparison with our Sun
257 years
at light speed from Earth
1.63×
as hot as the Sun
21.76×
the Sun's light output
1.51
absolute magnitude
Explore from here · roam the neighborhood
HR 2449A-type
Sky regionGeminithis direction
StarHR 239110 ly
StarHR 234220 ly
StarHD 4613624 ly
StarPolluxstar
StarAlhenastar
Nearest stars
Bright stars in Gemini
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 6.0To see it no equipment neededLook toward Gemini

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.