sidereal month

sidereal month
noun Date: 1868 the mean time of the moon's revolution in its orbit with reference to a star's position ; 27 days, 7 hours, 43 minutes, 11.5 seconds of mean time

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • sidereal month — n. the time required for the moon to complete one revolution around the earth with respect to a fixed star: its average value is 27.32 days of mean solar time …   English World dictionary

  • sidereal month — The average period of revolution of the moon with respect to the stars. It equals 27 days 43 min 11.5 s, or approximately 271/3 days. Sidereal month …   Aviation dictionary

  • sidereal month — noun period between successive conjunctions with a star, 27.322 days • Hypernyms: ↑month, ↑sidereal time …   Useful english dictionary

  • sidereal month — side′real month′ n. astron. month • Etymology: 1865–70 …   From formal English to slang

  • sidereal month — Astron. See under month (def. 5). [1865 70] * * * …   Universalium

  • sidereal month — A month as determined by changes in the position of the moon relative to certain stars. Guaranty Trust & S.D. Co. v Buddington, 27 Fla 215, 9 So 246 …   Ballentine's law dictionary

  • Sidereal time — is a measure of the position of the Earth in its rotation around its axis, or time measured by the apparent diurnal motion of the vernal equinox, which is very close to, but not identical to, the motion of stars. They differ by the precession of… …   Wikipedia

  • month — [munth] n. [ME < OE monath, akin to Ger monat, ON manuthr < Gmc * menōth < IE * mēnōt, month, moon, var. of mēn: see MOON] 1. any of the main parts (usually twelve) into which the calendar year is divided: also calendar month 2. a) the… …   English World dictionary

  • Month — For the Egyptian hawk god, see Monthu. A month is a unit of time, used with calendars, which was first used and invented in Mesopotamia, as a natural period related to the motion of the Moon; month and Moon are cognates. The traditional concept… …   Wikipedia

  • month — /munth/, n. 1. Also called calendar month. any of the twelve parts, as January or February, into which the calendar year is divided. 2. the time from any day of one calendar month to the corresponding day of the next. 3. a period of four weeks or …   Universalium

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