Phobos
(Encyclopedia) Phobos fōˈbŏs [key], in astronomy, innermost moon, or natural satellite, of Mars.
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Sycorax
(Encyclopedia) Sycorax sĭkˈərăksˌ [key], in astronomy, one of the natural satellites, or moons, of Uranus.
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Umbriel
(Encyclopedia) Umbriel ŭmˈbrēĕlˌ [key], in astronomy, one of the moons, or natural satellites, of Uranus.
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Portia
(Encyclopedia) Portia pôrˈshə [key], in astronomy, one of the natural satellites, or moons, of Uranus.
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planet
(Encyclopedia) planet [Gr.,=wanderer], a large nonluminous body of rock, gas, or ice that orbits the sun or another star, has a rounded shape due to gravity, and has cleared its orbit of smaller objects. The term, o...
IRAS
(Encyclopedia) IRAS: see infrared astronomy.
NICMOS
(Encyclopedia) NICMOS: see infrared astronomy.
COBE
(Encyclopedia) COBE: see infrared astronomy.
SOFIA
(Encyclopedia) SOFIA: see infrared astronomy.
radio telescope
(Encyclopedia) radio telescope: see radio astronomy.
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