[1] Umm Al Qura Univ, Dept Phys, Mecca, Saudi Arabia
[2] Univ Carthage, Fac Sci Bizerte, Grp Rech Phys Atom & Astrophys, Tunis, Tunisia
[3] King Saud Univ, Dept Phys & Astron, Coll Sci, POB 2455, Riyadh 11451, Saudi Arabia
[4] UPMC Univ Paris 06, Sorbonne Univ, CNRS, LERMA,Observ Paris,PSL Res Univ, 5 Pl Jules Janssen, F-92195 Meudon, France
[5] Astron Observ, Volgina 7, Belgrade 11060, Serbia
[6] IHIS Techno Experts, Bezanijski Put 23, Belgrade 11080, Serbia
[7] Inst Isaac Newton, Yugoslavia Branch, Belgrade 11060, Serbia