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Celestrial Classification.


Celestrial Classification. Home Stars Planets Moons

28th-30th May 2013 Leeds College of Art


Home Stars Planets Most stars are currently classified using the letters O, B, A, F, G, K, and M, where O stars are the hottest and the letter sequence indicates successively cooler stars up to the coolest M class. Useful mnemonics for remembering the spectral type letters are “Oh Be A Fine Girl Kiss Me” or “Oh Boy An F Grade Kills Me”. According to informal tradition, O stars are called “blue”, B stars are called “blue-white”, A stars are called “white”, F stars are called “yellow-white”, G stars are called “yellow”, K stars are called “orange”, and M stars are called “red”, even


Celestrial Classification. Home Stars Planets Moons


Celestrial Classification. Home Stars Planets Moons Most stars are currently classified using the letters O, B, A, F, G, K, and M, where O stars are the hottest and the letter sequence indicates successively cooler stars up to the coolest M class. Useful mnemonics for remembering the spectral type letters are “Oh Be A Fine Girl Kiss Me” or “Oh Boy An F Grade Kills Me”. According to informal tradition, O stars are called “blue”, B stars are called “blue-white”, A stars are called “white”, F stars are


Celestrial Classification. Home Stars Planets Moons

A terrestrial planet, telluric planet or rocky planet is a planet that is composed primarily of silicate rocks or metals. Within the Solar System, the terrestrial planets are the inner planets closest to the Sun. The terms are derived from Latin words for Earth (Terra and Tellus), as these planets are, in terms of composition, “Earth-like�.


Home Stars Planets Moons A terrestrial planet, telluric planet or rocky planet is a planet that is composed primarily of silicate rocks or metals. Within the Solar System, the terrestrial planets are the inner planets closest to the Sun. The terms are derived from Latin words for Earth (Terra and Tellus), as these planets are, in terms of composition, “Earth-like�. Terrestrial planets have a solid planetary surface, making them substantially different from the much larger gas giants, which are composed mostly of some combination of hydrogen, helium, and water existing


Celestrial Classification. Home Stars Planets Moons


Celestrial Classification. Home Stars Planets Moons A natural satellite, or moon, is a celestial body that orbits a planet or smaller body, which is called its primary. There are 172 known natural satellites orbiting six of the eight planets, and eight orbiting three of the five IAU-listed dwarf planets. As of January 2012, over 200 minorplanet moons have been discovered. There are 76 objects in the asteroid belt with satellites (five with two satellites each), four Jupiter trojans, 39 near-Earth objects (two


Some 150 additional small bodies have been observed within rings of Saturn, but only a few were tracked long enough to establish orbits. Planets


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