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Current system
17290+5052
STF 2180
HD 158868
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.
WDS 17290+5052 STF 2180 (HD 158868) : VISUAL OBSERVATIONS REPORTS
Show
date ⇓
username
difficulty
separation
pa_estim
interest
notes
Show
22/07/20
daedalus1
mean difficulty
separated
260
Seeing: Pickering 4, poor. Measures: theta 260, rho 3.2 +/- 0.132