B-type star · blue-white star
HR 2789
HR 2789 is a blue-white star in the constellation Puppis 592 ly from Earth. Its surface is about 11,867 K, about 2.1 times the Sun's surface temperature, and it shines at 130× the Sun's brightness. At magnitude 5.9 it is bright enough to see with the naked eye; the light you see left it 592 years ago.
Also catalogued as HD 57197 · HIP 35347
11,867 K
temperature
5.86
apparent magnitude
130× ☉
luminosity vs Sun
B8II/III
spectral type
Distance & comparison with our Sun
592 years
at light speed from Earth
2.06×
as hot as the Sun
130×
the Sun's light output
-0.43
absolute magnitude
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VISIBLE TO THE NAKED EYE
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.