(1) the declination of Arcturus is 19 degrees north(2) He also determined the latitude and longitude of many stars, and measured the greatest declination of the planet Mercury.(3) The actual declination letter disappeared from the file.(4) To calculate the distance we need to know the declination of the sun on a given day.(5) Proposals were being made to solve the longitude problem and in 1673 one based on magnetic declination was proposed by a certain Henry Bond.(6) Gellibrand's most famous scientific discovery was the change over the years in magnetic declination .(7) On the North Rim the difference between map and compass is 15 east, a distinction known as magnetic declination .(8) in the face of this declination of the proposition(9) The compass needle and a knowledge of magnetic declination , the angle between the magnetic north and geographic north, were developments from this knowledge; they were described by Shen Kua in 1088.(10) Consistently, equinoctial markers and alignments were made to an declination well over half a degree to the north.(11) Also every month, the Moon will reach its minimum declination at 18 north or south.(12) It's easy enough to gauge an asteroid's longitude and latitude (ascension and declination in astro-speak), but figuring out its current celestial position is tricky.(13) the mandatory vaccine declination form(14) He also studied magnetic declination and was the first to observe the secular variation.(15) Half a year of measurements, for instance, is sufficient to fully discriminate between the lunar and the solar declinational waves called K1 and P1.(16) This constituent expresses the effect of departure from a sinusoidal declinational motion.