| Affiliation: | 1. College of Graduate Studies, University of South Africa, PO Box 392, Unisa, 0003 Pretoria, South Africa;2. Institute of Astronomy with NAO, Bulgarian Academy of Sciences, blvd. Tsarigradsko chaussee 72, Sofia 1784, Bulgaria;3. Izmir Turk College Planetarium, 8019/21 sok., No: 22, İzmir, Turkey;1. S.D. College, Allappuzha 688 003, Kerala, India;2. Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411 007, India;3. NORDITA, KTH Royal Institute of Technology and Stockholm University, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden;1. İzmir Turk College Planetarium, 8019/21 sok., No: 22, İzmir, Turkey;2. College of Graduate Studies, University of South Africa, PO Box 392, Unisa, 0003 Pretoria, South Africa;3. Girne American University, School of Aviation, PO Box 388, Girne, Cyprus;1. School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, Anhui Province, PR China;2. College of Science/Department of Physics & NAOC-GZU-Sponsored Center for Astronomy Research, GuiZhou University, Guiyang 550025, PR China;3. National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, PR China |
