January 16, 2015: We have been informed by PI Dr. Matthew Muterspaugh that his campaign on alpha Com (AAVSO Alert Notice 506) has been cancelled. Position measurements published a century ago contained errors that affected the predictions for the time of eclipse.
More information will be coming from Dr. Muterspaugh and we will disseminate it to everyone in an Alert Notice, but he asked that the observer community be informed now so that observing efforts might not be wasted.
Revised Light Elements of 78 Southern Eclipsing Binary Systems
Margaret Streamer, Jeff Byron, David J. W. Moriarty, Tom Richards, Bill Allen, Roy Axelsen, Col Bembrick, Mark Blackford, Terry Bohlsen, David Herald, Roland Idaczyk, Stephen Kerr, Ranald McIntosh, Yenal Ogmen, Jonathan Powles, Peter Starr, George Stockham
January 12, 2015: Photometry by P. Benni (AAVSO observer code BPAD; Massachusetts, United States), D. Collins (CDK; North Carolina, United States), F. Campos (CFRA; Catalunya, Spain), and F. Melillo (MFR; New York, United States) suggest that b Persei may have entered eclipse around JD 2457033.6 (2015 January 11.1 UT). Time-series photometric observations of this bright star are urgently requested beginning immediately, and continuing for the next two weeks (through at least 2015 January 26 UT) and possibly beyond.
Does the Period of a Pulsating Star Depend on its Amplitude?
John R. Percy, Jeong Yeon Yook 245
CT Lacertae: Another Long-period Carbon Star with Long-Timescale Variations?
Matthew R. Templeton, Peter Maurer, Wolfgang Kriebel, Wayne M. Lowder (1932–2003),
Etienne Morelle, Steve O’Connor, Andrzej Arminski, Laurent Bichon, John E. Bortle 260