M-type star · red

HR 9010

HR 9010 is a red in the constellation Cassiopeia 1,607 ly from Earth. Its surface is about 3,608 K, about 0.6 times the Sun's surface temperature, and it shines at 1,274× the Sun's brightness. At magnitude 5.5 it is bright enough to see with the naked eye; the light you see left it 1,607 years ago.

1,607 lybrightness mag 5.55K3II

Also catalogued as HD 223173 · HIP 117299

3,608 K
temperature
5.55
apparent magnitude
1,274× ☉
luminosity vs Sun
K3II
spectral type
Distance & comparison with our Sun
1,607 years
at light speed from Earth
0.63×
as hot as the Sun
1,274×
the Sun's light output
-2.91
absolute magnitude
Explore from here · roam the neighborhood
HR 9010M-type
Sky regionCassiopeiathis direction
StarHR 8894160 ly
Star2 Cas210 ly
StarHR 9005280 ly
StarCihstar
StarSchedarstar
Nearest stars
Bright stars in Cassiopeia
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.5To see it no equipment neededLook toward Cassiopeia

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.