Generally the longitude positions of the planets are all that astrologers wish to know, perhaps with some ingress or aspect information (from the boxes at the bottom of the century ephemeris pages). Some astrologers, however, want more detailed aspect information or wish to work with declination or latitude figures. This ephemeris (adapted to the Greenwich meridian) is issued well in advance of the dates covered and contains such information as the daily right ascension and declination of the sun, moon, planets, and other celestial bodies, and daily data on the sunrise, sunset, moonrise, and moonset.
THE STRUGGLES TO FIND THE NINTH PLANET BY CLYDE W. TOMBAUGH. Clyde Tombaugh (at age 22) shown with his homebuilt 9-inch reflecting telescope that he built before being hired by the Lowell Observatory to search for Percival Lowell's "Planet X." Many papers have been written and published on the triumphal detection and discovery of Pluto.