AZRBAYCAN MLL ELMLR AKADEMYASI AZRBAYCAN ASTRONOMYA JURNALI 2018, Cild 13, 2 AZERBAIJAN NATIONAL ACADEMY OF SCIENCES ASTRONOMICAL JOURNAL OF AZERBAIJAN 2018, Vol. 13, 2 Bak-2018 / Baku-2018 ASTRONOMICAL JOURNAL OF AZERBAIJAN Founded in 2006 by the Azerbaijan National Academy of Sciences (ANAS) Published in the Shamakhy Astrophysical Observatory (ShAO) named after N. Tusi, ANAS ISSN: 2078-4163 (Print), 2078-4171 (Online) Editorial board Editor-in-Chief: Dzhalilov N.S. Associate Editor-in-Chief: Babayev E.S. Secretary: Bahaddinova G.R. Members: Aliyev J.S. Shamakhy Astrophysical Observatory, ANAS Asvarov A.I. Institute of Physics, ANAS Guliyev A.S. Shamakhy Astrophysical Observatory, ANAS Kuli-Zade D.M. Baku State University Haziyev G.A. Batabat Astrophysical Observatory,ANAS Huseynov V.A. Baku State University Ismayilov N.Z. Shamakhy Astrophysical Observatory, ANAS Mikailov Kh.M. Shamakhy Astrophysical Observatory, ANAS Technical Editors: Ismayilli R.F., Asgarov A.B. Editorial Oce address: ANAS, 30, Istiglaliyyat Street, Baku, AZ-1001, the Republic of Azerbaijan Address for letters: ShAO, P.O.Box 153, Central Post Oce, Baku, AZ-1000, Azerbaijan E-mail:
[email protected] Phone: (+994 12) 510 82 91 Fax: (+994 12) 497 52 68 Online version: http://www.aaj.shao.az ASTRONOMICAL JOURNAL OF AZERBAIJAN 2018, Vol. 13, 2 Contents Determination of the abundance of "Metallicity", Carbon and 4 Sodium in the atmosphere of star HR 7847 (F5Iab) Z. A. Samedov, A. M. Khalilov, A. R. Hasanova U. R. Gadirova, G. M. Hajiyeva, N. H. Samedova On the Spiral Structures in Heavy-Ion Collisions 12 J. N. Rustamov, A. J. Rustamov Results of long time spectral monitoring of the star IL CEP A 21 N.