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Thanks for the reminder of the Sissy Haas book, Suzy. I think Joe and I left out the Trapezium as it is perhaps everybody's goto when warming up in Orion. Where I live I can rarely get beyond five but a friend with sharper eyes and better gear reaches the six revularly. Other books I get my doub les from are "The Cambridge Double Star Atlas" by Bruce MacvEvoy and Wil Tirion. Similar to Sissy but good maps. Also check Vol 3 of "The Night Sky Observers Guide" Volume 3 -The Southern Skies by Ian Cooper, Jenn7 Kay and eorge Robert Kepple. On the net Eagle Creek Observatory has great lists of doubles in each constellation and Joe has mentioned -also on the net- StellerDoppie(Sp?) which even shows orbits for many binaries.
Regards, Eugene
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