AltaisvsSirius
Altais has a higher Apparent Magnitude (3 vs -1 mag), while Altais has a higher Declination (68 vs -17 °), while Altais has a higher Color Index (B-V) (1 vs 0).
Brightness
3
Apparent Magnitude
-1
1
Absolute Magnitude
1
46
Luminosity
23
Physical Properties
97
Distance
9
4,767
Surface Temperature
10,014
1
Color Index (B-V)
0
Position
19
Right Ascension
7
68
Declination
-17
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Data sourced from HYG Database (Free for any purpose, including commercial).