CapellavsSirius
Capella has a higher Declination (46 vs -17 °), while Sirius has a higher Absolute Magnitude (1 vs -1 mag), while Capella has a higher Apparent Magnitude (0 vs -1 mag).
Brightness
0
Apparent Magnitude
-1
-1
Absolute Magnitude
1
139
Luminosity
23
Physical Properties
43
Distance
9
5,296
Surface Temperature
10,014
1
Color Index (B-V)
0
Position
5
Right Ascension
7
46
Declination
-17
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Data sourced from HYG Database (Free for any purpose, including commercial).