equatorial, celestial equator, latitudes, tropics, aphelion, troposphere, ecliptic, perihelion, arctic circle, anticyclones, landmasses, mesosphere, equinox, galactic equator, longitudes, equinoxes, syrtis major, celestial sphere, drake passage, tropopause, airglow, capricornus, gondwanaland, magnetopause, antarctic peninsula, perigee, saturnian, jet stream, northern hemisphere, iapetus, rhumb line, milky way galaxy, oort cloud, subtropics, enceladus, planitia, poleward, planets, heliosphere, gyre, orbits, heliopause, photosphere, exosphere, antarctic continent, roaring forties, southern hemisphere, polar, tasman sea, greater antilles, weddell sea, celestial pole, intertropical convergence zone, annularity, autumnal equinox, meridional, annular eclipse, tuamotu archipelago, supercontinent, lithosphere, cape verde islands, chromosphere, jovian, altitudinal, icecap, tropical, pleiades, magnetic pole, proxima centauri, aurora, kuroshio current, insolation, umbra, solstices, prograde, ionosphere, ushant, synchronous orbit, prime meridian, moonlet, convection, water vapor, asthenosphere, el nino southern oscillation, uranus, winter solstice, subantarctic, austral islands, vernal equinox, isobars, aurora australis, cirrus cloud, marquesas islands, geosynchronous orbit, seamount, oceans, laurasia, nullarbor plain, sunspots, interstellar medium, ross ice shelf, amundsen sea, longitude, latitude, parallax, meridian, midpoint, pole, zodiac, centerline, centroid, precession, globe, height, jerusalem, schoolroom, altitude, coordinates, eden, abscissa, rectum, retina, mean, thorax, medulla, abdomen, anus, bloodstream, duodenum, esophagus, pharynx, seme, zenith, apex, cornea, cranium, dimensionless

., aclinic line, celestial latitude, celestial longitude, cetus, dec, declination, ecliptic, el nino, equatorial, equatorial current, equinoctial, equinoctial point, equinox, ha, hour angle, hydra, kiribati, latitude, line of latitude, line of longitude, longitude, lunar latitude, magnetic equator, mean solar time, mean sun, mean time, mercator's projection, mercator projection, meridian, northern hemisphere, north atlantic, north equatorial current, north pacific, orion, parallel, parallel of latitude, ra, republic of kiribati, right ascension, sanson-flamsteed projection, sinusoidal projection, snake, solstice, southern hemisphere, south atlantic, south equatorial current, south pacific, south sea, spindle, subtropic, subtropical, the hunter, trade, trade wind, tropic, tropical, tropic of cancer, tropic of capricorn, virgo

circle, great circle