[1] Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
[2] Okayama Astrophysical Observatory, National Astronomical Observatory of Japan, 3037-5 Honjo, Kamogata, Asakuchi, Okayama 719-0232, Japan
[3] Astrophysical Science Center, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
[4] Kwasan and Hida Observatories, Kyoto University, Yamashina-ku, Kyoto 607-8471, Japan
[5] Subaru Telescope, National Astronomical Observatory of Japan, 650 North A'ohoku Place, Hilo, HI 96720, United States
[6] Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan
[7] Osaka Kyoiku University, 4-698-1 Asahigaoka, Kashiwara, Osaka 582-8582, Japan
[8] Variable Star Observers League in Japan (VSOLJ), 124 Teradani, Isato-cho, Kumano, Mie 519-4673, Japan
[9] VSOLJ, 4-405-1003 Matsushiro, Tsukuba, Ibaraki 305-0035, Japan
[10] Department of Biosphere-Geosphere System Science, Faculty of Informatics, Okayama University of Science, 1-1 Ridai-cho, Okayama, Okayama 700-0005, Japan
[11] American Association of Variable Star Observers (AAVSO), 49 Bay State Rd., Cambridge, MA 02138, United States
[12] Nyrola Observatory, Jyvaskylan Sirius ry, Vertaalantie 419, FI-40270 Palokka, Finland
[13] Bronberg Observatory, Center for Backyard Astrophysics (Pretoria), PO Box 11426, Tiegerpoort 0056, South Africa
[14] VSOLJ, 1001-105 Nishiterakata, Hachioji, Tokyo 192-0153, Japan
[15] Vihorlat Observatory, Mierova 4, Humenne, Slovakia
[16] Phillips Academy Andover, 180 Main Street, Andover, MA 01810, United States
[17] Center for Backyard Astrophysics (Belgium), Walhostraat 1A, B-3401, Landen, Belgium
[18] Nollenweg 6, 65510 Idstein, Germany
[19] Camberwarra Drive, Craigie, WA 6025, Australia
[20] Silver Lane, West Challow, Wantage, OX12 9TX, United Kingdom
[21] RMB 2493, Ellinbank 3820, Australia
[22] Center for Backyard Astrophysics (New Mexico), PO Box 1351, Cloudcroft, NM 83117, United States
[23] Center for Backyard Astrophysics (Concord), 1730 Helix Ct., Concord, CA 94518, United States
[24] Department of Earth and Space Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
[25] DeKalb Observatory, H63, 2507 County Road 60, Auburn, IN 46706, United States
[26] Pemberton, School Lane, Bunbury, Tarporley, Cheshire, CW6 9NR, United Kingdom
[27] Sondervej 38, DK-8350 Hundslund, Denmark
[28] Virtual Telescope Project, Via Madonna del Loco 47, 03023 Ceccano, FR, Italy
[29] Project Eridanus, Observatory and Planetarium of Johann Palisa, VSB - Technical University Ostrava, Trida 17. Listopadu 15, Ostrava - Poruba 708 33, Czech Republic
[30] Institute of Computer Science, Faculty of Civil Engineering, Brno University of Technology, 602 00 Brno, Czech Republic
[31] Center for Backyard Astrophysics (Flanders), American Association of Variable Star Observers (AAVSO), Alan Guth Observatory, Koningshofbaan 51, Hofstade, Aalst, Belgium
[32] Furzehill House, Ilston, Swansea, SA2 7LE, United Kingdom
[33] VSOLJ, 3-1-5 Nishi, Juni-jo Minami, Nayoro, Hokkaido 096-0022, United States
[34] American Association of Variable Star Observers (AAVSO), 15 rue Pré Mathy, 5170 Lesve (Profondeville), Belgium
[35] Seikei Meteorological Observatory, Seikei High School, 3-3-1 Kichijoji-Kita-machi, Musashino, Tokyo 180-8633, Japan
[36] Arch Cape Observatory, 79916 W. Beach Road, Arch Cape, OR 97102, United States
[37] 5 Melba Drive, Hudson, NH 03051, United States
[38] Southern Stars Observatory, PO Box 60972, 98702 FAAA Tahiti, French Polynesia
[39] Woodridge Observatory, 8 Diosma Rd, Eltham, VIC 3095, Australia
[40] Center for Backyard Astrophysics (Alberta), King's University College, Edmonton, AB T6B 2H3, Canada
[41] Conder Brow Observatory, Fell Acre, Conder Brow, Little Fell Lane, Scotforth, Lancashire, LA2 ORQ, United Kingdom
[42] Physics Department, Rochester Institute of Technology, Rochester, NY 14623, United States
[43] 9 rue Vasco de GAMA, 59553 Lauwin Planque, France
[44] Crimean Astrophysical Observatory, 98409, Nauchny, Crimea, Ukraine
[45] Institute of Astronomy, Russian Academy of Sciences, 361605 Peak Terskol, Kabardino-Balkaria, Russia
[46] Department of Astronomy, University of Minnesota, 116 Church St. S.E., Minneapolis, MN 55455, United States
[47] 2320 Cherokee Drive NW, Calgary, AB T2L 0X7, Canada
[48] Šíd Astronomical Observatory, Šíd 303, 986 01, Slovakia
[49] Green Island Observatory, Geçitkale, Magosa, via Mersin, Cyprus
[50] Barfold Observatory, 165 Sievers Lane, Glenhope, VIC 3444, Australia