WDS 20557+3540 : VIRTUAL EYEPIECE
 
 

20557+3540 SEI1316A mag 10.87 Sp G0 20557+3540 SEI1316B sep 11.9 P.A. 19.90 mag 12.73 virtual eyepiece
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Radius:
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WDS 20557+3540 : ALADIN DSS IMAGE @ 20h 55m 41.66s +35° 40' 13.9"