F-type star · yellow-white star

HR 2439

HR 2439 is a yellow-white star in the constellation Gemini 107 ly from Earth. Its surface is about 6,286 K, about 1.1 times the Sun's surface temperature, and it shines at 2.51× the Sun's brightness. At magnitude 6.4 it is within reach of 50 mm binoculars; the light you see left it 107 years ago.

107 lybrightness mag 6.43F8IV

Also catalogued as HD 47415 · HIP 31850

6,286 K
temperature
6.43
apparent magnitude
2.51× ☉
luminosity vs Sun
F8IV
spectral type
Distance & comparison with our Sun
107 years
at light speed from Earth
1.09×
as hot as the Sun
2.51×
the Sun's light output
3.85
absolute magnitude
Explore from here · roam the neighborhood
HR 2439F-type
Sky regionGeminithis direction
StarAlhena16 ly
Star63 Gem21 ly
StarLambda Gem23 ly
StarPolluxstar
StarCastor Bstar
Nearest stars
Bright stars in Gemini
Can you see it tonight?
BINOCULARS NEEDED
Brightness mag 6.4To see it 50 mm binocularsLook 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.