Light curves:                                Long-term  series:      HK Lac
 
 

epoch                 ephemeris                format

15/07/1993	2449139.5+24.608d	data
14/10/1994	2449139.5+24.608d	data
31/10/1996	2449139.5+24.608d	data
27/07/1997	2449139.5+24.608d	data
29/08/1997	2449139.5+24.608d	data
12/11/1997	2449139.5+24.608d	data

 

Related papers:

 
H_alpha line and photometric variability in magnetically active stars
       Catalano, S., Rodonò, M., Cutispoto, G., Frasca, A., Marilli, E., Marino, G., Messina, S., 2000   in Ibanoglu (ed.)
       "Variable Stars as Important Astrophysical Tools", Kluwer Academic Publishers, Netherlands, Vol. 544, 687
 
Photometric and H alpha modulation on active stars
       Catalano, S.; Rodono, M.; Frasca, A.; Cutispoto, C. 1995, IAU Symp. 176
      "Stellar Suface Structures", p.403