Twenty-Two New Variable Stars in the Northern Sky and Light Elements Improvement for PT Lyr, [WM2007] 1157, and [WM2007] 1160
Riccardo Furgoni
Keyhole Observatory MPC K48, Via Fossamana 86, S. Giorgio di Mantova (MN), Italy
and
AAMN Gorgo Astronomical Observatory MPC 434, S. Benedetto Po (MN), Italy
Received April 17,2014; revised April 28, 2014; accepted April 28, 2014
Abstract
I report the discovery of twenty-two new variable stars in the Northern Sky: eleven eclipsing, seven pulsating (one of which is suspected), three rotating, and one of unspecified type. Three already known variables (PT Lyr, [WM2007] 1157, and [WM2007] 1160) have been studied more carefully in order to clarify their characterization or provide updated ephemeris.