B-type star · blue-white star
Phi Sgr
Phi Sgr is a blue-white star in the constellation Sagittarius 239 ly from Earth. Its surface is about 11,692 K, about 2.0 times the Sun's surface temperature, and it shines at 253× the Sun's brightness. At magnitude 3.2 it is bright enough to see with the naked eye; the light you see left it 239 years ago.
Also catalogued as HR 7039 · HD 173300 · HIP 92041
11,692 K
temperature
3.17
apparent magnitude
253× ☉
luminosity vs Sun
B8.5III
spectral type
Distance & comparison with our Sun
239 years
at light speed from Earth
2.03×
as hot as the Sun
253×
the Sun's light output
-1.16
absolute magnitude
Explore from here · roam the neighborhood
Nearest stars
Can you see it tonight?
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.