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Lists of astronomical objects. Selection of astronomical bodies and objects: Moon Mimas and Ida, an asteroid with its own moon, Dactyl. Comet Lovejoy and Jupiter, a giant gas planet. The Sun; Sirius A with Sirius B, a white dwarf; the Crab Nebula, a remnant supernova. A black hole (artist concept); Vela Pulsar, a rotating neutron star.
[1] [2] Moore compiled a list of 109 objects to match the commonly accepted number of Messier objects (he excluded M110 [3]), and the list was published in Sky & Telescope in December 1995. [3] Moore used his other surname – Caldwell – to name the list, since the initial of "Moore" is already used for the Messier catalogue.
Nucleons are the fermionic constituents of normal atomic nuclei: Protons, composed of two up and one down quark (uud) Neutrons, composed of two down and one up quark (ddu) Hyperons, such as the Λ, Σ, Ξ, and Ω particles, which contain one or more strange quarks, are short-lived and heavier than nucleons.
Cambridge Blue (colour) Capri (color) Carolina blue. Cerulean. Cobalt blue. Cobalt glass. Color of water. Columbia blue. Copper phthalocyanine.
Astronomical naming conventions. In ancient times, only the Sun and Moon, a few stars, and the most easily visible planets had names. Over the last few hundred years, the number of identified astronomical objects has risen from hundreds to over a billion, and more are discovered every year. Astronomers need to be able to assign systematic ...
Astronomical object. An astronomical object, celestial object, stellar object or heavenly body is a naturally occurring physical entity, association, or structure that exists within the observable universe. [ 1] In astronomy, the terms object and body are often used interchangeably. However, an astronomical body or celestial body is a single ...
A number of other smaller objects, such as Huya, Salacia, 2002 UX 25, Varda, and 2013 FY 27, also have moons, although their dwarf planethood is more doubtful. This list includes all objects with a best estimated diameter above 400 km that are considered likely or official dwarf planets by other sources and astronomers, [ 10 ] [ 11 ] [ 12 ...
Léonor Mérimée described red, yellow, and blue in his book on painting (originally published in French in 1830) as the three simple/primitive colors that can make a "great variety" of tones and colors found in nature. [91] George Field, a chemist, used the word primary to describe red, yellow, and blue in 1835. [92]