K-type star · orange

HR 6540

HR 6540 is an orange in the constellation Draco 1,269 ly from Earth. Its surface is about 3,955 K, about 0.7 times the Sun's surface temperature, and it shines at 429× the Sun's brightness. At magnitude 6.2 it is within reach of 50 mm binoculars; the light you see left it 1,269 years ago.

1,269 lybrightness mag 6.22K2III

Also catalogued as HD 159330 · HIP 85692

3,955 K
temperature
6.22
apparent magnitude
429× ☉
luminosity vs Sun
K2III
spectral type
Distance & comparison with our Sun
1,269 years
at light speed from Earth
0.69×
as hot as the Sun
429×
the Sun's light output
-1.73
absolute magnitude
Explore from here · roam the neighborhood
Can you see it tonight?
BINOCULARS NEEDED
Brightness mag 6.2To see it 50 mm binocularsLook toward Draco

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.