F-type star · yellow-white star
9 Gem
9 Gem is a yellow-white star in the constellation Gemini. Its surface is about 6,644 K, about 1.2 times the Sun's surface temperature, and it shines at 27,797,133× the Sun's brightness. At magnitude 6.2 it is within reach of 50 mm binoculars.
brightness mag 6.24B3Ia
Also catalogued as HR 2240 · HD 43384 · HIP 29840
6,644 K
temperature
6.24
apparent magnitude
27,797,133× ☉
luminosity vs Sun
B3Ia
spectral type
Distance & comparison with our Sun
–
at light speed from Earth
1.15×
as hot as the Sun
27,797,133×
the Sun's light output
-13.76
absolute magnitude
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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.