K-type star · orange
HR 1921
HR 1921 is an orange in the constellation Taurus 344 ly from Earth. Its surface is about 4,791 K, about 0.8 times the Sun's surface temperature, and it shines at 25.54× the Sun's brightness. At magnitude 6.5 it is within reach of 50 mm binoculars; the light you see left it 344 years ago.
Also catalogued as HD 37329 · HIP 26571
4,791 K
temperature
6.45
apparent magnitude
25.54× ☉
luminosity vs Sun
G9III
spectral type
Distance & comparison with our Sun
344 years
at light speed from Earth
0.83×
as hot as the Sun
25.54×
the Sun's light output
1.33
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.