Stellar spectra are graphs or visual representations of the intensity of light emitted by a star at different wavelengths. They provide information about the star's temperature, chemical composition, and motion towards or away from Earth. Studying stellar spectra is crucial for understanding the properties and evolution of stars.
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Many people were involved in the current spectral classes.The person who first realised that the spectral sequence then categorised was in fact temperature, was Cecilia Payne.See related link for more information on her.
Stellar parallax was first observed by Friedrich Wilhelm Bessel in 1838, when he measured the parallax of 61 Cygni. This discovery provided the first direct evidence of the Earth's orbital motion around the Sun.
Stellar aberration was discovered by James Bradley in the early 18th century. He observed the apparent shift in the positions of stars due to the Earth's motion around the Sun. This discovery provided important evidence for the heliocentric model of the Solar System.
Stellar spectra are graphs or visual representations of the intensity of light emitted by a star at different wavelengths. They provide information about the star's temperature, chemical composition, and motion towards or away from Earth. Studying stellar spectra is crucial for understanding the properties and evolution of stars.
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Charles R. Cowley has written: 'The theory of stellar spectra' -- subject(s): Spectra, Stars 'An introduction to cosmochemistry' -- subject(s): Astrogeology, Astrophysics, Cosmochemistry 'Line identification studies using traditional techniques and wavelength coincidence statistics' -- subject(s): Abundance, Line spectra, Statistical analysis, Stellar spectra
Richard D. Robinson has written: 'High-level manpower in economic development' 'Coordinated HST-EUVE observations of YZ CMi' -- subject(s): Stellar flares, Satellite observation, M stars, Ultraviolet spectra, Stellar spectra, Spaceborne astronomy
Thomas Espin has written: 'The distribution of stars of Type III and of stellar spectra in space'
Scientists study stellar spectra to learn about their properties such as temperature, chemical composition and relative chemical abundances, radial velocity, rotational speed etc.
David Tytler has written: 'Strong associated C IV absorption in low redshift quasars' -- subject(s): Absorption spectra, Interstellar gas, Quasars, Stellar spectra
Bengt E. Westerlund has written: 'The Magellanic Clouds' 'Luminosity effects and colour-equivalents as measured in short stellar spectra' -- subject(s): Stars, Color, Spectra
Jennifer Catelli has written: 'Variability in the X-ray emission of H0538+608, an unusual AM Her-type cataclysmic variable' -- subject(s): Cataclysmic variables, Emission spectra, Light curve, Periodic variations, Stellar spectra, X ray astronomy, X ray spectra
Wayne Lee Waldron has written: 'A deep PSPC observation of the Cyg OB2 association' -- subject(s): Emission spectra, B stars, O stars, X ray sources, Radio observation, Spectrum analysis, Star clusters, X ray spectra, X ray astronomy, Radio spectra, X rays, Stellar spectra, Cygnus constellation
Viktor Viktorovich Sobolev has written: 'Theory of stellar spectra' -- subject(s): Spectra, Stars 'Moving envelopes of stars' -- subject(s): Stars, Spectra, Radiation 'Course in theoretical astrophysics' -- subject(s): Astrophysics 'A treatise on radiative transfer' -- subject(s): Atmospheres, Radiative transfer, Radiation, Stars, Planets
Many people were involved in the current spectral classes.The person who first realised that the spectral sequence then categorised was in fact temperature, was Cecilia Payne.See related link for more information on her.