spectroheliograph Definition

spectroheliogram, spectrohelioscope, actinic radiation, heliography, photoheliograph, lucimeter, helioscope, tithonographic, microspectroscope, optical device, calorescence, spectral type, heliometer, absorption band, telespectroscope, heat ray, solar telescope, photoscope, optography, chromascope, photomagnetic, compton effect, dynactinometer, chromatrope, optogram, exposure meter, scioptics, luminous energy, heliochromy, microwave spectroscopy, anaclastics, spectro, microscopium, wollaston prism, photographometer, parhelic circle, scintillation counter, skiagram, photodisintegration, photofission, visible spectrum, cosmorama, heliogram, perspicil, sensitometer, ophthalmometer, ultramicroscope, photopolarimeter, pyrheliometer, wavelength, telestereoscope, photonuclear, light meter, dioptrics, dynameter, nicol prism, optical phenomenon, magnetograph, spectrometer, perspectograph, tithonic, xeroradiography, infrared, optical instrument, leucoscope, infrared lamp, diaphote, microdensitometer, heliochrome, radio astronomer, spectral, stauroscope, background radiation, absorption spectrum, catopter, heliometry, light microscope, megalethoscope, chromophotography, microphotometer, absolute magnitude, line spectrum, magnetic lens, diradiation, phantascope, photofluorography, rutilate, cometarium, alethoscope, photometer, telephotograph, holophote, tithonometer, stereomonoscope, dioptometer, astronomical telescope, aeroscopy, tithonicity, star chart, microradiography,