RR Lyr star

Alert Notice 336: CCD campaign to observe 1059+23 AH Leo

April 4, 2006

Subject: CCD CAMPAIGN TO OBSERVE 1059+23 AH LEO

Coordinates: 11:05:05.30 +23:21:08.0 (2000.0)

AAVSO Council member Dr. Pamela Gay, Harvard University, has requested our assistance in observing the RR Lyrae variable star AH Leo closely this spring and early summer. She is studying the Blazhko cycle and other periodicities in this star, and precise, well time-sampled observations are essential.