3C 273vsAlterf
3C 273 has a higher Distance (326,156 vs 329 light-years), while 3C 273 has a higher Luminosity (61,376 vs 166 × Sun), while Alterf has a higher Color Index (B-V) (2 vs 0).
Brightness
13
Apparent Magnitude
4
-7
Absolute Magnitude
-1
61,376
Luminosity
166
Physical Properties
326,156
Distance
329
8,839
Surface Temperature
3,733
0
Color Index (B-V)
2
Position
12
Right Ascension
10
2
Declination
23
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Data sourced from HYG Database (Free for any purpose, including commercial).