Англо-русский толковый словарь по геоинформатике. В.Ю. Андрианов. 2015.
Spectral theory of compact operators — In functional analysis, compact operators are linear operators that map bounded sets to precompact ones. Compact operators acting on a Hilbert space H is the closure of finite rank operators in the uniform operator topology. In general, operators … Wikipedia
Spectral Mornings — Infobox Album | Name = Spectral Mornings Type = Album Artist = Steve Hackett Released = May 1979 Recorded = 1979 at Phonogram Studios, Hilversum, The Netherlands Genre = Progressive rock Length = 39:03 Label = Charisma Records Chrysalis Records… … Wikipedia
Spectral envelope — In remote sensing using a spectrometer, the spectral envelope of a feature is the boundary of its spectral properties, as defined by the range of brightness levels in each of the spectral bands of interest. References *… … Wikipedia
Least-squares spectral analysis — (LSSA) is a method of estimating a frequency spectrum, based on a least squares fit of sinusoids to data samples, similar to Fourier analysis. [cite book | title = Variable Stars As Essential Astrophysical Tools | author = Cafer Ibanoglu |… … Wikipedia
Asteroid spectral types — Asteroids are assigned a type based on spectral shape, color, and sometimes albedo. These types are thought to correspond to an asteroid s surface composition. For small bodies which are not internally differentiated, the surface and internal… … 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
Planetshine — Saturn s moon Iapetus lit by Saturnshine. This is an enhanced picture; the Saturn light is too faint by contrast to be visible to the unaided human eye … Wikipedia
Metal L-edge — Figure 1: L3 and L2 edges of [CuCl4]2 … Wikipedia
The Dark Energy Survey — DES logo The Dark Energy Survey (DES) is a survey that aims to probe the dynamics of the expansion of the universe and the growth of large scale structure. The collaboration is composed of research institutes and universities from United… … Wikipedia
D-type asteroid — D type asteroids have a very low albedo and a featureless reddish electromagnetic spectrum[citation needed]. It has been suggested that they have a composition of organic rich silicates, carbon and anhydrous silicates, possibly with water ice in… … Wikipedia
X-type asteroid — The X group of asteroids collects together several types with similar spectra, but probably quite different compositions.Tholen classificationIn the Tholen classification the X group contains the types: * E type * M type, the largest grouping * P … Wikipedia
