TY - BOOK ED - Her Majesty's Nautical Almanac Office TI - Planetary co-ordinates for the years 1940-1960: referred to the equinox of 1950 PY - 1939/// CY - London PB - Her Majesty's Stationary Office KW - Almanac ephements KW - Astronomy and Astrophysics Thesaurus KW - Equinox KW - Planetary Tables ER -