Ashraf Latif Tadross, <br/><br/>
Photometric analysis and star counts in the open cluster ''M25'' 
 تحليل فوتومترى و إحصائى للحشد النجمى المفتوح "M25'' 
By Ashraf Latif Tadross ; Under Supervisors Prof. Dr. M.marie, Prof. Dr. A.l.osman, Prof. Dr. S.m.hassan. 
 - 90 pages :   illustrations ;    30 cm. +  
<br/><br/>Thesis (M.Sc.) -Cairo University, 1995. 
<br/><br/>Bibliography: pages 75-79. 
<br/><br/><label>Subjects--Index Terms: </label>celestial mechanics . general relativity. cosmology solar physics.