Wen & how you take ex meridian sight , long by chron , polaris sights ?
X 0
EX MERIDIAN : IF THE BODY OBSERVED WHEN NEAR THE MERIDIAN WHEN ITS HOUR ANGLE IS SMALL (THE LIMIT OF HOUR ANGLE IS LAT DIFFERENT DECN ARE SAME NAME AND THE RATE OF CHANGE OF ALTITUDE WILL BE LARGER)
THERE FOR EX MERIDIAN LIMITS ARE SMALLER THAN WHEN LAT AND DECN ARE DIFFERENT NAME.
POLARIS: WE KNOW THAT ALTITUDE OF OF THE CELESTIAL POLE IS EQUAL TO THE LATITUDE OF OBSERVER.POLARIS IS SITUATED VERY CLOSE TO CELESTIAL NORTH POLE.
LONG BY CHRON: TO CALCULATE THE NOON POSN REQUIRED LONG BY CHRON AT MORNING HOURS IS THE TIME FOR TAKING LONG BY CHRON
MMD / MCA ORALS CHIEF MATE EXAM
