AlterfvsPhact
Alterf has a higher Declination (23 vs -34 °), while Alterf has a higher Color Index (B-V) (2 vs 0), while Phact has a higher Surface Temperature (11,920 vs 3,733 K).
Brightness
4
Apparent Magnitude
3
-1
Absolute Magnitude
-2
166
Luminosity
487
Physical Properties
329
Distance
261
3,733
Surface Temperature
11,920
2
Color Index (B-V)
0
Position
10
Right Ascension
6
23
Declination
-34
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Data sourced from HYG Database (Free for any purpose, including commercial).