heliometer Definition

heliometry, absolute magnitude, holometer, standard candle, pyrheliometer, apparent magnitude, solar telescope, backstaff, spectrohelioscope, spherometer, astrometer, sidereal time, helioscope, almucantar, tellurometer, gravitational field, spherograph, light meter, terrestrial telescope, chromatoscope, aerometer, radio interferometer, pantometer, angulometer, binary system, light second, evection, star chart, exposure meter, cathetometer, apolune, solarimeter, sidereal day, radio astronomer, astronomy unit, macrometer, apocynthion, spectroheliograph, hubble law, gravity meter, semidiameter, circumjovial, anglemeter, microdensitometer, ultramicrometer, angular distance, mean solar day, armil, magnetograph, roche limit, meteorometer, sidereal year, inferior planet, mesoseme, decametric, dioptometer, metergram, cosmolabe, dynactinometer, absorption band, declinometer, megameter, selenodesy, sensitometer, telespectroscope, hypsometer, microseme, solar constant, lucimeter, multiple star, orbital plane, dynameter, machmeter, inner planet, megaseme, meteoroscope, pupillometer, evaporometer, nephoscope, airometer, astrocompass, celestial point, rhysimeter, apastron, solar day, femtometer, apojove, heat ray, cometarium, proper motion, space probe, actinometry, phonometer, astrometeorology, magnetic north, magnetic moment, dendrometer, demicircle, salinometer, astrosphere,