almucantar Definition

small circle, backstaff, heliometer, apolune, absolute magnitude, orbital plane, sidereal time, celestial point, hubble law, angular distance, apocynthion, star chart, evection, sidereal day, standard candle, inferior planet, circumjovial, armil, celestial sphere, gravitational field, spherical angle, equinoctial circle, magnetic north, true anomaly, selenodesy, altitude, apparent magnitude, sidereal year, binary system, semimajor axis, loxodrome, horizon, apastron, spherograph, translunary, map projection, midnight sun, trioctile, event horizon, aeroscopy, antapex, magnetic dip, inner planet, roche limit, astronomical year, superior planet, apojove, antiscian, mesoseme, coriolis force, astrometeorology, isochasm, isobathytherm, terrestrial telescope, heliometry, pilot balloon, uranoscopy, meteoroscope, isothermobath, astrocompass, microseme, space probe, ecliptic, right ascension, line of force, megaseme, soil horizon, forestaff, major planet, celestial equator, hull down, pantometer, solar day, wind rose, isothermobathic, tangent plane, orbit, artificial horizon, hydrospace, optical phenomenon, cosmic background radiation, solar constant, light second, solar year, superlunar, interplanetary space, acronycal, tellurion, dygogram, acronycally, astrosphere, absorption band, statoscope, triangulum australe, equinoctial point, pyrheliometer, intersidereal, tropical year, ionopause, amphigean,