LONGITUDE n.
ned from the vernal equinox, on the ecliptic, to a circle at right angles to the ecliptic passing through the heavenly body whose longitude is designated; as, the longitude of Capella is 79º. Geocentric longitude (Astron.), the longitude of a heavenly body as seen from the earth. -- Heliocentric longitude, the longitu…
MERIDIAN a. 3 definitions
Being at, or pertaining to, midday; belonging to, or passing through, the highest point attained by the sun in his diurnal course. "Meridian hour." Milton. Tables ... to find the altitude meridian. Chaucer.
MONTH n.
rigee to perigee again, in length 27 d. 13 h. 18 m. 37.4 s.; and the tropical, or time of passing from any point of the ecliptic to the same again, equal to 27 d. 7 h. 43 m. 4.7 s. -- Solar month, the time in which the sun passes through one sign of the zodiac, in mean length 30 d. 10 h. 29 m. 4.1 s.…