AltairvsBrachium
Altair has a higher Absolute Magnitude (2 vs -1 mag), while Altair has a higher Declination (9 vs -25 °), while Brachium has a higher Luminosity (341 vs 11 × Sun).
Brightness
1
Apparent Magnitude
3
2
Absolute Magnitude
-1
11
Luminosity
341
Physical Properties
17
Distance
288
8,004
Surface Temperature
3,549
0
Color Index (B-V)
2
Position
20
Right Ascension
15
9
Declination
-25
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Data sourced from HYG Database (Free for any purpose, including commercial).