CHANGE OF dLONGITUDE (CH LONG/ D LONG)
CHANGE OF dLONGITUDE (CH LONG/ D LONG) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ THE CHANGE OF LONGITUDE BETWEEN TWO POINTS IS THE SMALLER ARC OF THE EQUATOR INTERCEPTED BY MERIDIANS THROUGH TWO POINTS ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ It is annotated EAST or WEST according to the direction of the change from the first point to the second. It depends on whether the points are EAST/WEST of the PRIME MERIDIAN (0°) for the value of the change. RULES (According to the PRIME MERIDIAN) •EAST to WEST / WEST to EAST - ADD the LONGITUDES •EAST to EAST / WEST to WEST - SUBTRACT the LONGITUDES •While crossing IDL (180°) ADD the two LONGITUDES then SUBTRACT it from 360°, then check the direction ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #aviation #avgeek #boeing #aviationphotography #aviationlovers #airplane #aircraft #aviationdaily #airbus #planespotting #pilot #instagramaviation
