planet has definitions from the field of astronomy
1
[ noun ] (astronomy) any of the celestial bodies (other than comets or satellites) that revolve around the sun in the solar system

Used in print

(Cornell H. Mayer, "Radio Emission of the Moon...)

It has recently become practical to use the radio_emission of the moon and planets as a new source of information about these bodies and their atmospheres .

Observations of the radio_emission of a planet which has an extensive atmosphere will probe the atmosphere to_a_greater_extent than those using shorter wave_lengths and should in some cases give otherwise unobtainable information about the characteristics of the solid surface .

Radio_observations of Venus and Jupiter have already supplied unexpected experimental data on the physical conditions of these planets .

This result suggests a very high_temperature at the solid surface of the planet , although there is the possibility that the observed radiation may be a combination of both thermal and non thermal components and that the observed spectrum is that of a black_body merely by coincidence .

Of the remaining planets , only Mars and Saturn have been observed as radio_sources , and not very much information is available .

2
[ noun ] a person who follows or serves another

Synonyms

satellite

Used in print

(Harry Olesker, Impact....)

She was the sun , he the closest planet orbiting around her , the rest of the world existing and visible yet removed .

Related terms

follower

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