M-type star · red
HR 237
HR 237 is a red in the constellation Cassiopeia. Its surface is about 3,299 K, about 0.6 times the Sun's surface temperature, and it shines at 33,419,504× the Sun's brightness. At magnitude 6.0 it is within reach of 50 mm binoculars.
brightness mag 6.04K5Ib
Also catalogued as HD 4817 · HIP 3988
3,299 K
temperature
6.04
apparent magnitude
33,419,504× ☉
luminosity vs Sun
K5Ib
spectral type
Distance & comparison with our Sun
–
at light speed from Earth
0.57×
as hot as the Sun
33,419,504×
the Sun's light output
-13.96
absolute magnitude
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BINOCULARS NEEDED
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.