Astronomy and Astrophysics – Astronomy
Scientist
Astronomy and Astrophysics
Astronomy
Scientist
Institute of Astronomy and Geophysics, Helwan, Egypt; Tokyo Astronomical Observatory, Mitaka, Japan
National Research Institute of Astronomy and Geophysics, Cairo, Egypt
Institute of Astronomy and Geophysics, Helwan, Egypt
Astronomy Dept., National Research Institute of Astronomy and Geophysics, Helwan, Cairo, Egypt
National Research Institute of Astronomy and Geophysics, Helwan, Egypt
National Research Institute for Astronomy and Geophysics, Helwan, Egypt
National Research Institute for Astromomy and Geophystes
Helwan Institute of Astronomy and Geophysics, Cairo, Egypt
Helwan Observatory, Cairo, Egypt
A method for the determination of cosmic distances
Absorption gradient in galaxies.
Absorption gradient in some galaxies. IV
Archimedes spiral and the surface distribution of dark clouds in M31. III
Astronomical research activities with the 74 inch telescope at Kottamia Observatory
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