A-type star · white star
HR 1819
HR 1819 is a white star in the constellation Orion 305 ly from Earth. Its surface is about 8,419 K, about 1.5 times the Sun's surface temperature, and it shines at 21.98× the Sun's brightness. At magnitude 6.3 it is within reach of 50 mm binoculars; the light you see left it 305 years ago.
Also catalogued as HD 35909 · HIP 25638
8,419 K
temperature
6.35
apparent magnitude
21.98× ☉
luminosity vs Sun
A4V
spectral type
Distance & comparison with our Sun
305 years
at light speed from Earth
1.46×
as hot as the Sun
21.98×
the Sun's light output
1.50
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.