sidereal month in a sentence
Examples
- An anomalistic month is longer than a sidereal month because the perigee moves in the same direction as the Moon is orbiting the Earth, one revolution in nine years.
- The four-inch rises, Williams said in an interview, occur in 27-day cycles _ the time it takes the Moon to make one full orbit of Earth, known as the sidereal month.
- A draconic month is shorter than a sidereal month because the nodes move in the opposite direction to that in which the Moon is orbiting the Earth, one revolution in 18.6 years.
- The number of nakshatras reflects the number of days in a sidereal month ( modern value : 27.32 days ), the width of a nakshatra traversed by the Moon in about one day.
- This apsidal precession completes one rotation in the same time as the number of sidereal months exceeds the number of anomalistic months by exactly one, after about 3233 days ( 8.85 years ).
- This is the reason that a draconic month or nodal period ( the period of time that the Moon takes to return to the same node in its orbit ) is shorter than the sidereal month.
- :Do you mean sidereal month ( not " exactly " 28 days ), or are you looking for a more colloquial term, like fortnight is used for 14 days ?-- TALK ) 14 : 20, 5 September 2010 ( UTC)
- The Muisca, like the Incas, also took notice of the difference between the sidereal month ( 27 days, 7 hours, 43 minutes ); the time it takes for the Moon to reach the same position with respect to the stars.
- The zodiac month consists of 27 days, approximating the mean sidereal month of 27.321661 days . Thus each zodiac day, called " nekkhat ", represents a lunar mansion, or a segment of the ecliptic along which the moon revolves around the earth.
- This, and the fact that there are about thirteen sidereal months in a tropical year, suggest that the Moon's heliocentric orbit should resemble a rounded triskaidecagon although, as stated above, the figure isn't quite closed and will form a spirograph-like pattern over several years.