hko Definition

observatory, astronomy satellite, radio astronomer, solar telescope, astronomical, astronomical telescope, optical telescope, terrestrial telescope, astronomer, telescope, uranoscopy, galilean telescope, meteorological, planetarium, telespectroscope, astrometeorology, planetary, star chart, astronomy, circumjovial, chromatoscope, meteor shower, emcdda, herschel, uranography, astrophysical, meteorograph, geomagnetic, celestial body, equinoctial point, geodetic, weatherglass, observation post, meteoroscope, right ascension, midnight sun, radioastronomy, spectrohelioscope, hubble, solar eclipse, equatorial, astrobleme, orrery, inferior planet, heliometer, micrometeorology, meteoromancy, total eclipse, stargaze, observation, astroscopy, almucantar, evection, climatological, minor planet, astronomic, tropospheric, lunar eclipse, ionospheric, interplanetary space, major planet, sidereal time, inner planet, annular eclipse, ephemeris, dynameter, moonquake, apocynthion, seismograph, maksutov telescope, oort cloud, proper motion, seismometry, ptolemaic system, seismology, cometarium, giant planet, absolute magnitude, eumc, superlunar, solar year, solar flare, sidereal day, herschelian, pluviograph, aurora borealis, geoselenic, copernican system, inferior rectus, equinoctial circle, prutenic, superior rectus, cometology, lateral rectus, tropic of capricorn, uranology, backstaff, weather map, meteoroidal, corona australis,