TY UMa, A Very Nice Eclipsing Binary Star
I've been out of the loop for a while, lots of changes going on in life.
I wanted to share with you a wonderful eclipsing binary star for the Spring sky for visual observers. I observered TY UMa last night and had an eclipse ranging from 11.5 to 12.1 v. This star is just off of Delta UMa and is very easy to find. If you print a "b" chart from the VSP, the bright star is Delta. Then print a "d" chart for you useful comparison stars.
TY is an W UMa type eclipser. The eclipses last 3 hours. Both the primary and the secondary eclipses range from 11.5 to 12.1, so they are both easy to observe. I use the 11.0, 11.7, and 12.4 comp stars on the chart.
Predictions for eclipses can be found on the AAVSO web site at http://www.aavso.org/eclipsing-binary-ephemerides
Submit your observations via WebObs. Good Observing!
Chris Stephan SET
Robert Clyde Observatory
Avon Park, Florida