A megametre (American spelling: megameter, symbol Mm) is a unit of length in the metric system, equal to one million metres, the SI base unit of length, hence to 1,000 km or approximately 621. A foot (plural feet or foot; symbol or abbreviation ft or sometimes &prime – the prime symbol) is a non-SI unit Phonology North American English regional phonology In many ways compared to English English, North American English is conservative in its Phonology. Length is the long Dimension of any object The length of a thing is the distance between its ends its linear extent as measured from end to end The metric system is a decimalised system of measurement. It exists in several variations with different choices of base units, though the choice of base units does The metre or meter is a unit of Length. It is the basic unit of Length in the Metric system and in the International The International System of Units (SI defines seven dimensionally independent SI base units. The kilometre ( American spelling: kilometer) symbol km is a unit of Length in the Metric system, equal to one thousand 37 miles. A mile is a unit of Length, usually used to measure Distance, in a number of different systems including Imperial units United States

Megametres (from the Greek words megas = big and metro = count/measure) are rarely seen in practical use, because they are too big for most terrestrial tasks. Greek (el ελληνική γλώσσα or simply el ελληνικά — "Hellenic" is an Indo-European language, spoken today by 15-22 million people mainly Their symbol (Mm) can also be confused with millimetres (mm). The Millimetre ( American spelling: millimeter, symbol mm) is a unit of Length in the Metric system, equal to Still there are a number of "megametre fans". Megametres are also occasionally found in science fiction.

• The Earth's polar circumference is 39. EARTH was a short-lived Japanese vocal trio which released 6 singles and 1 album between 2000 and 2001 The circumference is the distance around a closed Curve. Circumference is a kind of Perimeter. 94 Mm. (It was exactly 40 Mm from 1791 to 1875; see metre). The metre or meter is a unit of Length. It is the basic unit of Length in the Metric system and in the International
• The distance from Amsterdam to Marseille is approximately 1 Mm. Amsterdam (pronounced) is the capital and largest city of the Netherlands, located in the province of North Holland in the west Marseille, ( English alt Marseilles mɑrˈseɪ — French: maʁsɛj locally — Provençal Occitan: Marselha maʀˈsijɔ
• The Earth's equatorial diameter is 12. EARTH was a short-lived Japanese vocal trio which released 6 singles and 1 album between 2000 and 2001 The equator (sometimes referred to colloquially as "the Line") is the intersection of the Earth 's surface with the plane perpendicular to the Geometry, a diameter of a Circle is any straight Line segment that passes through the center of the circle and whose Endpoints are on the 76 Mm.
• The mean distance from the Earth to the Moon is 384. EARTH was a short-lived Japanese vocal trio which released 6 singles and 1 album between 2000 and 2001 4 Mm.
• Jupiter's equatorial diameter is 143 Mm. The equator (sometimes referred to colloquially as "the Line") is the intersection of the Earth 's surface with the plane perpendicular to the Geometry, a diameter of a Circle is any straight Line segment that passes through the center of the circle and whose Endpoints are on the
• Quebec province's total area is 1. Quebec (kwɨˈbɛk Area is a Quantity expressing the two- Dimensional size of a defined part of a Surface, typically a region bounded by a closed Curve. 542 Mm².

See also

• 1 E+6 m
• SI
• SI prefix
• Metric system
• Orders of magnitude (length)
• Conversion of units, for comparison with other units of length
• light year
• parsec

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A megameter is also a type of astrometrical instrument used for determining longitude by observation of the stars. To help compare different Orders of magnitude this page lists Lengths starting at 106 m (1 Mm or 1000 km) An SI prefix (also known as a metric prefix) is a name or associated symbol that precedes a unit of measure (or its symbol to form a Decimal multiple or The metric system is a decimalised system of measurement. It exists in several variations with different choices of base units, though the choice of base units does To help compare different Orders of magnitude, the following list describes various Lengths between 1 Conversion of units refers to conversion factors between different Units of measurement for the same Quantity. A light-year or light year (symbol ly) is a unit of Length, equal to just under ten trillion Kilometres As defined by History The first direct measurements of an object at interstellar distances were undertaken by German Astronomer Friedrich Wilhelm Bessel in 1838 Astrometry is the branch of Astronomy that relates to precise measurements and explanations of the positions and movements of Stars and other celestial bodies Longitude (ˈlɒndʒɪˌtjuːd or ˈlɒŋgɪˌtjuːd symbolized by the Greek character Lambda (λ is the east-west Geographic coordinate measurement A star is a massive luminous ball of plasma. The nearest star to Earth is the Sun, which is the source of most of the Energy on Earth

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