AlkaphrahvsSirius
Sirius has a higher Absolute Magnitude (1 vs -2 mag), while Alkaphrah has a higher Apparent Magnitude (4 vs -1 mag), while Alkaphrah has a higher Declination (47 vs -17 °).
Brightness
4
Apparent Magnitude
-1
-2
Absolute Magnitude
1
393
Luminosity
23
Physical Properties
358
Distance
9
10,039
Surface Temperature
10,014
0
Color Index (B-V)
0
Position
9
Right Ascension
7
47
Declination
-17
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Data sourced from HYG Database (Free for any purpose, including commercial).