عناصر مشابهة

• PHOTOMETRIC INVESTIGATION OF OPEN STAR CLUSTERS CASE STUDY : THE SOUTHERN OPEN CLUSTER NGC 2477
  بواسطة: REDA EL-BENDARY HAMED EL-AWAMY منشور: (2006)
• INVESTIGATION IN GROUPS OF GALAXIES
  بواسطة: SABRY ALI MOAHMED ALI منشور: (2009)
• GLOBAL CHARACTERISTICS OF HII REGIONS IN GALAXIES
  بواسطة: ALI SAID AHMED TAKEY منشور: (2005)
• PROPERTIES OF EARLY AND LATE-TYPE GALAXIES IN GROUPS
  بواسطة: YASSER HASSAN MOHAMMED MOHAMMED HENDY منشور: (2005)
• STUDY OF PHOTOMETRIC CHARACTERISTICS OF SOME TYPES OF COMMERCIAL LAMPS , LUMINAIRES AND LOCAL DAYLIGHT
  بواسطة: MANAL AHMED ABD EL- NABY HARIDY منشور: (2002)