Institution: | 1. Department of Physics, Bojnourd Branch, Islamic Azad University, Bojnourd, Iran;2. Faculty of physics, University of Tabriz, 51666-16471 Tabriz, Iran;1. Astronomy Department, National Research Institute of Astronomy and Geophysics (NRIAG), 11421 Helwan, Cairo, Egypt;2. Kottamia Center of Scientific Excellence in Astronomy and Space Science (KCScE, STDF, ASRT), Cairo, Egypt;2. Desert Blooms Observatoery, Benson, AZ (31° 56.466′ N, 110° 15.419′ W) |