K-type star · orange
HR 3740
HR 3740 is an orange in the constellation Carina 2,160 ly from Earth. Its surface is about 3,828 K, about 0.7 times the Sun's surface temperature, and it shines at 1,153× the Sun's brightness. At magnitude 6.3 it is within reach of 50 mm binoculars; the light you see left it 2,160 years ago.
Also catalogued as HD 81502 · HIP 46049
3,828 K
temperature
6.30
apparent magnitude
1,153× ☉
luminosity vs Sun
K1/K2II/III
spectral type
Distance & comparison with our Sun
2,160 years
at light speed from Earth
0.66×
as hot as the Sun
1,153×
the Sun's light output
-2.81
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.