K-type star · orange
HR 7643
HR 7643 is an orange in the constellation Sagittarius 351 ly from Earth. Its surface is about 4,789 K, about 0.8 times the Sun's surface temperature, and it shines at 39.81× the Sun's brightness. At magnitude 6.0 it is within reach of 50 mm binoculars; the light you see left it 351 years ago.
Also catalogued as HD 189561 · HIP 98575
4,789 K
temperature
6.01
apparent magnitude
39.81× ☉
luminosity vs Sun
K0III
spectral type
Distance & comparison with our Sun
351 years
at light speed from Earth
0.83×
as hot as the Sun
39.81×
the Sun's light output
0.85
absolute magnitude
Explore from here · roam the neighborhood
Nearest stars
Can you see it tonight?
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.