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Analysis of planetary surfaces and surface features is a major component of planetary science. Planetary science (or more rarely, planetology) is the scientific study of planets (including Earth), celestial bodies (such as moons, asteroids, comets) and planetary systems (in particular those of the Solar System) and
A-type star In the Harvard spectral classification system, a class of main-sequence star having spectra dominated by Balmer absorption lines of hydrogen. Stars of spectral class A are typically blue-white or white in color, measure between 1.4 and 2.1 times the mass of the Sun, and have surface temperatures of 7,600–10,000 kelvin.
Planetary science is the study of the assemblage of planets, moons, dwarf planets, comets, asteroids, and other bodies orbiting the Sun, as well as extrasolar planets. The Solar System has been relatively well-studied, initially through telescopes and then later by spacecraft. This has provided a good overall understanding of the formation and ...
The adjectival forms of the names of astronomical bodies are not always easily predictable. Attested adjectival forms of the larger bodies are listed below, along with the two small Martian moons; in some cases they are accompanied by their demonymic equivalents, which denote hypothetical inhabitants of these bodies.
PNLF – (astrophysics terminology) Planetary Nebula Luminosity Function, the density of planetary nebula as a function of their luminosity; PNN – (celestial object) planetary nebula nucleus, the central star in a planetary nebula; PNNV – (celestial object) planetary nebula nucleus variable, a variable star in the center of a planetary nebula
Planetary science is a broad field of science that studies all planets. For Earth in particular, see Category:Earth sciences. Subcategories. This category has the ...
Dictionary.com has released its annual Word of the Year for 2024. The online dictionary chose “demure" as the Word of the Year, but “extreme weather" ranked high in searches in 2024.
Planetary Science – study of planets, moons, and planetary systems. Atmospheric science – study of atmospheres and weather. Planetary geology; Planetary oceanography; Exoplanetology – various planets outside of the Solar System; Astrochemistry – studies the abundance and reactions of molecules in the Universe, and their interaction with ...