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WDS 20078+1950 WEB 12 (HD 191140) : VISUAL OBSERVATIONS REPORTS
Show
date
username
difficulty
separation
pa_estim
interest
notes
Show
22/08/29
daedalus1
mean difficulty
separated
77
Seeing: Pickering 9, excellent. Measures: theta 077, rho 40.6 +/- 0.125