- stellar luminosity
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English-Polish dictionary for engineers. 2013.
stellar luminosity
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Luminosity — has different meanings in several different fields of science.In photometry and color imagingIn photometry, luminosity is sometimes incorrectly used to refer to luminance, which is the density of luminous intensity in a given direction. The SI… … Wikipedia
Stellar kinematics — is the study of the movement of stars without needing to understand how they acquired their motion. This differs from stellar dynamics, which takes into account gravitational effects. The motion of a star relative to the Sun can provide useful… … Wikipedia
Stellar classification — In astronomy, stellar classification is a classification of stars based on their spectral characteristics. The spectral class of a star is a designated class of a star describing the ionization of its chromosphere, what atomic excitations are… … Wikipedia
Stellar structure — Stars of different mass and age have varying internal structures. Stellar structure models describe the internal structure of a star in detail and make detailed predictions about the luminosity, the color and the future evolution of the… … Wikipedia
Stellar evolution — Life cycle of a Sun like star Stellar evolution is the process by which a star undergoes a sequence of radical changes during its lifetime. Depending on the mass of the star, this lifetime ranges from only a few million years (for the most… … Wikipedia
stellar association — Astron. a sparsely populated group of between 10 and 1000 young stars of similar spectral type and common origin that are moving too fast to form a permanent, gravitationally bound system. Also called association of stars, association. Cf.… … Universalium
stellar classification — ▪ astronomy scheme for assigning stars (star) to types according to their temperatures as estimated from their spectra. The generally accepted system of stellar classification is a combination of two classification schemes: the Harvard… … Universalium
Stellar engine — Diagram of a Class C Stellar Engine to scale built around a sun like star. It consists of a partial Dyson swarm composed of 5 Dyson Rings of solar collectors (the Class B component), and a large statite Shkadov thruster (the Class A component).… … Wikipedia
Stellar birthline — The stellar birthline is a predicted line on the Hertzsprung Russell diagram that relates the colour and luminosity of protostars at the end of the initial phase of accretion onto them. [cite journal | author = Stahler, S.W. | year = 1983 |… … Wikipedia
luminosity function — noun a) A standard measure of the response of the human eye to light of different wavelengths b) A relative measure of the relationship between stellar magnitude and the distribution of stars between magnitudes … Wiktionary
Eddington luminosity — The Eddington luminosity (also referred to as the Eddington limit) in a star is defined as the point where the gravitational force inwards equals the continuum radiation force outwards, assuming hydrostatic equilibrium and spherical symmetry.… … Wikipedia
