M-type star · red

HD 51021

HD 51021 is a red in the constellation Auriga 1,717 ly from Earth. Its surface is about 3,551 K, about 0.6 times the Sun's surface temperature, and it shines at 617× the Sun's brightness. At magnitude 6.5 it is within reach of 50 mm binoculars; the light you see left it 1,717 years ago.

1,717 lybrightness mag 6.48M3

Also catalogued as HIP 33453

3,551 K
temperature
6.48
apparent magnitude
617× ☉
luminosity vs Sun
M3
spectral type
Distance & comparison with our Sun
1,717 years
at light speed from Earth
0.62×
as hot as the Sun
617×
the Sun's light output
-2.13
absolute magnitude
Explore from here · roam the neighborhood
HD 51021M-type
Sky regionAurigathis direction
StarPsi³ Aur370 ly
StarOmega Gem430 ly
StarHR 2645460 ly
StarMenkalinanstar
StarMahasimstar
Nearest stars
Bright stars in Auriga
Can you see it tonight?
BINOCULARS NEEDED
Brightness mag 6.5To see it 50 mm binocularsLook toward Auriga

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.