B-type star · blue-white star
Delta¹ Lyr
Delta¹ Lyr is a blue-white star in the constellation Lyra 991 ly from Earth. Its surface is about 12,254 K, about 2.1 times the Sun's surface temperature, and it shines at 472× the Sun's brightness. At magnitude 5.6 it is bright enough to see with the naked eye; the light you see left it 991 years ago.
Also catalogued as HR 7131 · HD 175426 · HIP 92728
12,254 K
temperature
5.58
apparent magnitude
472× ☉
luminosity vs Sun
B2.5V
spectral type
Distance & comparison with our Sun
991 years
at light speed from Earth
2.12×
as hot as the Sun
472×
the Sun's light output
-1.83
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.