M-type star · red

HR 2169

HR 2169 is a red in the constellation Gemini 2,064 ly from Earth. Its surface is about 3,613 K, about 0.6 times the Sun's surface temperature, and it shines at 1,482× the Sun's brightness. At magnitude 5.9 it is bright enough to see with the naked eye; the light you see left it 2,064 years ago.

2,064 lybrightness mag 5.93K4III

Also catalogued as HD 42049 · HIP 29196

3,613 K
temperature
5.93
apparent magnitude
1,482× ☉
luminosity vs Sun
K4III
spectral type
Distance & comparison with our Sun
2,064 years
at light speed from Earth
0.63×
as hot as the Sun
1,482×
the Sun's light output
-3.08
absolute magnitude
Explore from here · roam the neighborhood
HR 2169M-type
Sky regionGeminithis direction
StarChi² Ori270 ly
Star57 Ori280 ly
StarHR 2111320 ly
StarPolluxstar
StarAlhenastar
Nearest stars
Bright stars in Gemini
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.9To 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.