THE CONTRIBUTION OF TO THE ASTRONOMY Yusuf BAYRAMOĞLU CET Title ALİ KUŞCU

Introduction Aim TO INVESTIGATE THE STUDIES OF TURKISH SCIENTIST TO THE ASTRONOMY IN 15. CENTURY

Introduction Outline HIS WORK OF ARTS, THE PEOPLE WHO AFFECT HIM, THE EFFECT OF THE CENTURY ON HIM Include Exclude THE PERSONALITY OF HIM, HIS STUDIES ON MATHEMATICS

HE STARTED TO WORK IN OBSERVATORY WITH ULUĞ BEY AND WROTE OBSERVATORY Zic-I Uluğ bey TOGETHER

Hallül Eşkalil Kamer TO ULUĞ BEY AS A GİFT MEANWHILE, HE PRESENT, WHICH IS ABOUT THE PHASE OF MOON OF MOON,

HE WROTE AND TRANSLATE A LOT OF BOOK WITH THE HELP OF HIS OBSERVATIONs IN ULUĞ BEY’S OBSERVATORY

ONE OF THEM IS FETHIYE WHICH IS GIVEN TO FATIH SULTAN MEHMET AFTER CONGUEST OF ISTANBUL FATIH SULTAN MEHMET

ULUĞ BEY WAS KILLED AND THE OBSERVATORY WAS RAZED TO THE GROUND BYTHE OBSERVATORY Abd al-Latif’s DISLOYALTY

AFTER THE DEATH OF UZUN HASAN, THE SULTAN OF AKKOYUNLULAR,ACCEPTED HIM ULUĞ BEY

THE NEED TO DETERMINE THE PRAY TIME AND THE PERIOD OF HOLY DAYS IN ISLAM 12 OCAK

PROVIDE AN IMPROVEMENT AND DEVELOPMENT IN ASTRONOMY THANKS TO THE SCIENTESTS WHO DEAL WITH OBSERVATIONSASTRONOMY

IS THE STUDY OF STARS, PLANETS, BLACK HOLES AND THEIR MOVEMENT IN SPACE

FULL MOON, HALF MOON, NEW MOON ARE NAMES WHICH ARE USED TO CLARIFY THE PHASES OF MOON

OBSERVATORY IS A PLACE WHERE OBSERVERS MAKE OBSERVATION OF THE STARS, MOON, PLANET, WEATHER

THE SULTAN OF OTTOMON EMPIRE WHO CALLED THE CONQUER DUE TO THE CONQUEST OF ISTANBUL