Thanks to all participants that answered my queries. Robin, thanks for pointing to Washington Double Star Catalogue. It should be useful – my Cambridge Double Star Atlas is not much of help concerning Theta Aurigae. I would like to clarify my question – wide separation & short period. I would like to observe a visual double star system with period of say 10 years rather than an eclipsing binary. Thanks to David for pointing to the Double Star group within Deep Sky Section – I found two excellent articles on double star observation & measurements in Deep Sky Newsletter 2021 issue. Thanks again, David!
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This reply was modified 2 years, 3 months ago by
Iain Poplett.