apogean Definition

apastron, apocynthion, apolune, celestial point, antapex, apojove, pinnacle, apoapsis, perigee, zenith, true anomaly, almucantar, apex, aphelion, periapsis, perilune, equinoctial point, launch window, sidereal day, heliometer, astrometer, anomalistic year, armil, angular distance, translunary, apside, orbit, pilot balloon, nadir, regrede, lunistice, sidereal time, sidereal year, apicular, tropical year, apollo, circumjovial, cosmolabe, superior planet, pessimum, angulometer, cosmic time, machmeter, lunicurrent, mean solar day, peakless, evection, lunary, semimajor axis, mesoseme, inferior planet, pantometer, culmination, megaseme, holometer, minute of arc, microradian, decameter, angular unit, round angle, lunitidal, backstaff, orbitar, solar day, space probe, peak, right ascension, phonometer, astronomical year, summer triangle, microseme, solar year, predicrotic, stereometer, absolute magnitude, megameter, binary system, geological time, altitude, clivity, lunar, orbital plane, jupiter, epoch, perihelion, orion, geosynchronous orbit, old moon, decametre, spacecraft, mach number, straight angle, space vehicle, galilean telescope, ascent, standard candle, solid angle, aerobraking, statoscope, spherograph,