delphinus, amphion, collimator, trifid, eridanus, rotary actuator, aegir, refractor, tucana, cepheus, arcas, euterpe, procyon, coronis, echoscope, refracting telescope, niobe, centrifugal pump, superliner, viracocha, pleiades, oceanus, eclipsing binary, amphitrite, rals, pipelayer, leti, hydroid, pollux, magnifica, circinus, hyades, cytometer, hydrus, photometer, ancon, lacerta, camelopardalis, fluidics, anapurna, arcturus, serpens, orionis, auriga, polarimeter, audient, reflectometer, gyrocompass, electron optics, scintillator, edmund halley, imager, flybridge, lucida, edda, magnetic resonance, spectroscope, grms, galatea, airglow, ixion, capricornus, hagia, proxima centauri, sentinelle, duros, davits, astronomical telescope, viscometer, crius, pyxis, cepheid variable, galvanometer, deneb, azur, nautic, thalassa, osiris, arcsecond, caravel, azimuthal, gimbals, retroreflector, undulator, brahms, lyrae, philae, aurigae, alcyon, magellan, talaria, beta centauri, achernar, foiler, optical telescope, borealis, spica, ellipsoid, horsehead nebula, celestial sphere, lumma, electron volt