observatories Definition

observations, stations, observers, watchdogs, telescopes, astronomers, satellites, optical telescope, astronomy, astronomical telescope, astrometry, nebulas, grond, polarimetry, auroras, geodesy, asteroids, themis, interferometer, occultation, seismology, planetarium, lidar, earthshine, novae, physicists, astrophysical, masers, epsilon aurigae, spacecraft, meteor shower, cosmic ray, sciamachy, geodetic, coronagraph, meteoroids, radars, omega centauri, quasars, spectrometers, detectors, astron, harlow shapley, photometry, dixi, orbiters, perseids, aristarchus, spectrographic, volcanoes, spectroscopic, jodrell bank, taurid, cassini, stargazers, planetology, airglow, comets, meteors, geomagnetism, radiometer, jovian, hipparchus, planets, ionosphere, galaxies, corona australis, scientists, redshift, radial velocity, meteorites, corot, nightglow, celestial mechanics, small magellanic cloud, supernovae, pulsars, retroreflector, hubble, oceanographers, photometer, arecibo, cherenkov, deimos, seismometer, eclipsing binary, syrtis major, craters, constellations, wavelengths, andromeda galaxy, aurora borealis, muons, lunar, particle beam, cosmic rays, antineutrinos, prominences, orbits, scarps,