AlnairvsArcturus
Arcturus has a higher Declination (19 vs -47 °), while Arcturus has a higher Color Index (B-V) (1 vs 0), while Alnair has a higher Apparent Magnitude (2 vs 0 mag).
Brightness
2
Apparent Magnitude
0
-1
Absolute Magnitude
0
170
Luminosity
116
Physical Properties
101
Distance
37
11,092
Surface Temperature
4,234
0
Color Index (B-V)
1
Position
22
Right Ascension
14
-47
Declination
19
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Data sourced from HYG Database (Free for any purpose, including commercial).