Saesen, S.Pigulski, A.Carrier, F.De Ridder, J.Aerts, C.Handler, G.Narwid, A.Fu, J. N.Zhang, C.Jiang, X. J.Kopacki, G.Vanautgaerden, J.Steslicki, M.Acke, B.Poretti, E.Uytterhoeven, K.De Meester, W.Reed, M. D.Kolaczkowski, Z.Michalska, G.Schmidt, E.Ostensen, R.Gielen, C.Yakut, K.Leitner, A.Kalomeni, B.Prins, S.Van Helshoecht, V.Zima, W.Huygen, R.Vandenbussche, B.Lenz, P.Ladjal, D.Antolin, E. PugaVerhoelst, T.Niarchos, P.Liakos, A.Lorenz, D.Dehaes, S.Reyniers, M.Davignon, G.Kim, S-LKim, D. H.Lee, Y-JLee, C-UKwon, J-HBroeders, E.Van Winckel, H.Vanhollebeke, E.Raskin, G.Blom, Y.Eggen, J. R.Beck, P.Puschnig, J.Schmitt, L.Gelven, G. A.Steiniger, B.Drummond, R.Gizon, LRoth, M2019-10-272019-10-2720081742-6588https://doi.org/10.1088/1742-6596/118/1/012071https://hdl.handle.net/11454/40996International Conference on Helioseismology, Asteroseismology and MHD Connections (HELAS II) -- AUG 20-24, 2007-2008 -- Gottingen, GERMANYIn 2005 a photometric observation campaign started on the open cluster chi Persei, involving 13 telescopes spread over the whole northern hemisphere. After two years we gathered almost 1200 hours of data. We present here preliminary results on the variability search, especially from the 60-cm telescope in Bialkow (Poland), which show seven confirmed beta Cephei stars, four candidate B-type pulsators and other interesting variable stars.en10.1088/1742-6596/118/1/012071info:eu-repo/semantics/openAccessConference Object118WOS:000268177900071N/A