82 G. ErivsCygnus X-1
Cygnus X-1 has a higher Declination (35 vs -43 °), while 82 G. Eri has a higher Absolute Magnitude (5 vs 0 mag), while Cygnus X-1 has a higher Luminosity (90 vs 1 × Sun).
Brightness
4
Apparent Magnitude
9
5
Absolute Magnitude
0
1
Luminosity
90
Physical Properties
20
Distance
1,941
5,564
Surface Temperature
5,501
1
Color Index (B-V)
1
Position
3
Right Ascension
20
-43
Declination
35
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Data sourced from HYG Database (Free for any purpose, including commercial).