A-type star · white star
HR 2129
HR 2129 is a white star in the constellation Lepus 358 ly from Earth. Its surface is about 9,800 K, about 1.7 times the Sun's surface temperature, and it shines at 40.36× the Sun's brightness. At magnitude 6.0 it is within reach of 50 mm binoculars; the light you see left it 358 years ago.
Also catalogued as HD 40972 · HIP 28520
9,800 K
temperature
6.04
apparent magnitude
40.36× ☉
luminosity vs Sun
A0V
spectral type
Distance & comparison with our Sun
358 years
at light speed from Earth
1.70×
as hot as the Sun
40.36×
the Sun's light output
0.83
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.