Back مطيافية فلكية Arabic Espectroscopia astronómica AST Espectroscòpia astronòmica Catalan Astrospektroskopie German Astronomical spectroscopy English Espectroscopia astronómica Spanish Astrospektroskoopia ET طیفسنجی نجومی FA Spectroscopie astronomique French Espectroscopia astronómica GL
Astronomical spectroscopy is the science of using spectroscopy to figure out what elements astronomical bodies, such as stars, planets and nebulae, are made of. It can also be used to work out how those objects are moving, using doppler shift.
The study of spectroscopy and spectra is used in astronomy to help scientists study the whole spectrum of electromagnetic radiation, including visible light, which radiates from stars and other hot celestial objects. Spectroscopy can be used to find properties of distant stars and galaxies. It can find out their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using doppler effect measurements.