K-type star · orange

HR 5639

HR 5639 is an orange in the constellation Boötes 445 ly from Earth. Its surface is about 4,823 K, about 0.8 times the Sun's surface temperature, and it shines at 55.67× the Sun's brightness. At magnitude 6.2 it is within reach of 50 mm binoculars; the light you see left it 445 years ago.

445 lybrightness mag 6.16G6V:

Also catalogued as HD 134323 · HIP 74121

4,823 K
temperature
6.16
apparent magnitude
55.67× ☉
luminosity vs Sun
G6V:
spectral type
Distance & comparison with our Sun
445 years
at light speed from Earth
0.84×
as hot as the Sun
55.67×
the Sun's light output
0.49
absolute magnitude
Explore from here · roam the neighborhood
HR 5639K-type
Sky regionBoötesthis direction
Star7 Ser26 ly
StarHD 13808549 ly
StarTau² Ser56 ly
StarIzarstar
StarMuphridstar
Nearest stars
Bright stars in Boötes
Can you see it tonight?
BINOCULARS NEEDED
Brightness mag 6.2To see it 50 mm binocularsLook toward Boötes

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.