AltairvsCanopus
Altair has a higher Apparent Magnitude (1 vs -1 mag), while Altair has a higher Absolute Magnitude (2 vs -5 mag), while Altair has a higher Declination (9 vs -53 °).
Brightness
1
Apparent Magnitude
-1
2
Absolute Magnitude
-5
11
Luminosity
13,855
Physical Properties
17
Distance
309
8,004
Surface Temperature
8,453
0
Color Index (B-V)
0
Position
20
Right Ascension
6
9
Declination
-53
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Data sourced from HYG Database (Free for any purpose, including commercial).