Simonsen et al., JAAVSO Volume 42, 2014 1 Z Cam Stars in the Twenty-First Century Mike Simonsen AAVSO, 49 Bay State Road., Cambridge, MA 02138;
[email protected] David Boyd 5 Silver Lane, West Challow OX12 9TX, England;
[email protected] William Goff 13508 Monitor Lane, Sutter Creek, CA 95685;
[email protected] Tom Krajci Center for Backyard Astronomy, P.O. Box 1351, Cloudcroft, NM 88317;
[email protected] Kenneth Menzies 318A Potter Road, Framingham MA, 01701;
[email protected] Sebastian Otero AAVSO, 49 Bay State Road, Cambridge, MA 02138;
[email protected] Stefano Padovan Barrio Masos SN, 17132 Foixà, Girona, Spain;
[email protected] Gary Poyner 67 Ellerton Road, Kingstanding, Birmingham B44 0QE, England;
[email protected] James Roe 85 Eikermann Road-174, Bourbon, MO 65441;
[email protected] Richard Sabo 2336 Trailcrest Drive, Bozeman, MT 59718;
[email protected] George Sjoberg 9 Contentment Crest, #182, Mayhill, NM 88339;
[email protected] Bart Staels Koningshofbaan 51, Hofstade (Aalst) B-9308, Belgium;
[email protected] Rod Stubbings 2643 Warragul, Korumburra Road, Tetoora Road, VIC 3821, Australia;
[email protected] John Toone 17 Ashdale Road, Cressage, Shrewsbury SY5 6DT, England;
[email protected] Patrick Wils Aarschotsebaan 31, Hever B-3191, Belgium;
[email protected] Received October 7, 2013; revised November 12, 2013; accepted November 12, 2013 2 Simonsen et al., JAAVSO Volume 42, 2014 Abstract Z Cam (UGZ) stars are a small subset of dwarf novae that exhibit standstills in their light curves. Most modern literature and catalogs of cataclysmic variables quote the number of known Z Cams to be on the order of thirty or so systems.