M-type star · red

HR 2166

HR 2166 is a red in the constellation Lepus 1,254 ly from Earth. Its surface is about 3,671 K, about 0.6 times the Sun's surface temperature, and it shines at 652× the Sun's brightness. At magnitude 5.7 it is bright enough to see with the naked eye; the light you see left it 1,254 years ago.

1,254 lybrightness mag 5.74M3II/III

Also catalogued as HD 41933 · HIP 28984

3,671 K
temperature
5.74
apparent magnitude
652× ☉
luminosity vs Sun
M3II/III
spectral type
Distance & comparison with our Sun
1,254 years
at light speed from Earth
0.64×
as hot as the Sun
652×
the Sun's light output
-2.19
absolute magnitude
Explore from here · roam the neighborhood
HR 2166M-type
Sky regionLepusthis direction
StarHR 2380180 ly
StarXi¹ CMa190 ly
StarHD 46037240 ly
StarArnebstar
StarNihalstar
Nearest stars
Bright stars in Lepus
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.7To see it no equipment neededLook toward Lepus

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.