1. Department of Astronomy, Graduate School of Science, Kyoto University , Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto-shi, Kyoto 606-8502 , Japan
2. Okayama Observatory, Kyoto University , 3037-5 Honjo, Kamogata-cho, Asakuchi-shi, Okayama 719-0232 , Japan
3. Department of Multi-Disciplinary Sciences, Graduate School of Arts and Sciences, The University of Tokyo , 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902 , Japan
4. Observatorio Astronómico “Las Pegueras” , Navas De Oro, Segovia 40470 , Spain
5. Phillips Exeter Academy , 20 Main Street, Exeter, NH 03833 , USA
6. American Association of Variable Star Observers (AAVSO) , 55 Dale Gardens, 18 Balder Road, Douglasdale, Sandton 2191 , South Africa
7. Astronomical Society of Southern Africa , Variable Star Section (ASSA)
8. Flarestar Observatory , San Gwann SGN 3160 , Malta
9. British Astronomical Association , Variable Star Section, Standlake, Oxfordshire OX29 , UK
10. Madrona Peak Observatory , 4635 Shadow Grass Dr., Katy, TX 77493 , USA
11. American Association of Variable Star Observers (AAVSO) , Rolling Hills Observatory, Clermont, FL 34711 , USA
12. Institute of Earth Systems, University of Malta , Msida MSD 2080 , Malta
13. American Association of Variable Star Observers (AAVSO) , Midland, MI , USA
14. Groupe Européen d’Observations Stellaires (GEOS) , 23 Parc de Levesville, 28300 Bailleau l’Evêque , France
15. Bundesdeutsche Arbeitsgemeinschaft für Veränderliche Sterne (BAV) , Munsterdamm 90, 12169 Berlin , Germany
16. Vereniging voor Sterrenkunde (VVS) , Oostmeers 122 C, 8000 Brugge , Belgium
17. American Association of Variable Star Observers (AAVSO) , New Smyrna Beach, FL , USA
18. Bethune Observers Group , Post Office Box 25553 Columbia, SC 29224 , USA
19. Universidad Complutense de Madrid , Avda. de Séneca, 2, Ciudad Universitaria, Madrid 28040 , Spain
20. American Association of Variable Star Observers (AAVSO) , Capraia e Limite, Firenze 50050 , Italy
21. Variable Star Observers League in Japan (VSOLJ) , 1001-105 Nishiterakata, Hachioji-shi, Tokyo 192-0153 , Japan
22. Variable Star Observers League in Japan (VSOLJ) , 7-1 Kitahatsutomi, Kamagaya-shi, Chiba 273-0126 , Japan
23. American Association of Variable Star Observers (AAVSO) , 2405 Steele Ranch Ct., Friendswood, TX 77546 , USA
24. Svensk Amator Astronomisk Forening , variabelsektionen (SAAF) , Sweden
25. URSA Astronomical Association , Variable Star Section (URSA) , Finland
26. American Association of Variable Star Observers (AAVSO) , Hillsborough, CA 94010 , USA
27. Bronberg Observatory, Center for Backyard Astrophysics Pretoria , PO Box 11426, Tiegerpoort 0056 , South Africa
28. Kleinkaroo Observatory, Center for Backyard Astrophysics Kleinkaroo , Sint Helena 1B, PO Box 281, Calitzdorp 6660 , South Africa
29. Observatorio de Sencelles , 07140 Sencelles, Balearic Islands , Spain
30. Variable Star Observers League in Japan (VSOLJ) , 290-383, Ogata-cho, Sasebo-shi, Nagasaki 858-0926 , Japan
31. Variable Star Observers League in Japan (VSOLJ) , Okayama , Japan
32. Variable Star Observers League in Japan (VSOLJ) , 5-9-3 B-305 Honson, Chigasaki-shi, Kanagawa 253-0042 , Japan
33. Al Sadeem Astronomy , Al Wathba South, Abu Dhabi , UAE
34. Al Khatim Observatory, International Astronomical Center , Abu Dhabi , UAE
35. Agrupació Astronòmica de Sabadell , Carrer Prat de la Riba, 116, Sabadell, Barcelona 08206 , Spain
36. Perth Observatory , Western Australia 6076 , Australia
37. AstroMallorca, Asociación Astronómica de Mallorca , Spain
38. American Association of Variable Star Observers (AAVSO) , Calle San Vicente, 18, 02660 Caudete , Spain
39. Pobedy street , House 7, Flat 60, Yuzhno-Morskoy, Nakhodka, Primorsky Krai 692954, Russia
40. American Association of Variable Star Observers (AAVSO) , 185 Alewife Brook Parkway, Suite 410, Cambridge, MA 02138 , USA
41. Burke-Gaffney Observatory, Saint Mary’s University , 923 Robie Street, Halifax, NS B3H3C3 , Canada
42. Abbey Ridge Observatory , 45 Abbey Rd, Stillwater Lake, NS B3Z1R1 , Canada
43. iTelescope.Net Observatory New Mexico Skies at Mayhill , NM 88339 , USA
44. School of Physics and Astronomy, Rochester Institute of Technology , Rochester, NY 14623 , USA
45. Observatorio Astronómico “Nastro Verde” , Sorrento, Naples 80067 , Italy
46. Variable Star Observers League in Japan (VSOLJ) , Nishi juni-jou minami 3-1-5, Nayoro-shi, Hokkaido 080-0020 , Japan
47. Observation and Data Center for Cosmosciences, Faculty of Science, Hokkaido University , Kita-ku, Sapporo-shi, Hokkaido 060-0810 , Japan
48. Nayoro Observatory , 157-1 Nisshin, Nayoro-shi, Hokkaido 096-0066 , Japan
49. American Association of Variable Star Observers (AAVSO) , PO Box 274, Wheelock, TX 77882 , USA
50. Factory Physics, Inc. , Houston, TX 77019 , USA
51. Burleith Observatory , 1810 35th St NW, Washington, D.C. 20007 , USA
52. Center for Backyard Astrophysics Belgium , Walhostraat 1A, B-3401 Landen , Belgium
53. Center for Backyard Astrophycis Extremadura , e-EyE Astronomical Complex, 06340 Fregenal de la Sierra , Spain
54. Vihorlat Observatory , Mierova 4, 06601 Humenne , Slovakia
55. American Association of Variable Star Observers (AAVSO) , 126 Powell Bay Road, Elgin, ON K0G 1E0 , Canada
56. Royal Astronomical Society of Canada (RASC) , 203-489 College St., Toronto, ON M6G 1A5 , Canada
57. Bundesdeutsche Arbeitsgemeinschaft fur Veranderliche Sterne e.V. (BAV) , Oberwiesenthal , Germany
58. Drebach-South Observatory , Tivoli Southern Sky Guest Farm, Windhoek, Khomas 11854 , Namibia
59. American Association of Variable Star Observers (AAVSO) , Glasgow , UK