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Day - Definition of a day in astronomy

Day - Definition of a day in astronomy: Encyclopedia II - Day - Definition of a day in astronomy

For a given planet, there are two types of day defined in astronomy: 1 apparent sidereal day = a single rotation of a planet with respect to the distant stars (for Earth it is 23.934 solar hours or 24 sidereal hours) 1 solar day = a single rotation of a planet with respect to Sun. ...

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Day: Encyclopedia II - Day - Definition of a day in astronomy

Day - Definition of a day in astronomy

For a given planet, there are two types of day defined in astronomy:

1 apparent sidereal day = a single rotation of a planet with respect to the distant stars (for Earth it is 23.934 solar hours or 24 sidereal hours)

1 solar day = a single rotation of a planet with respect to Sun.

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Adapted from the Wikipedia article "Definition of a day in astronomy", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki

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