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What (who) is proper cut - definition
TYPE OF CONTINUOUS FUNCTION
Proper function; Proper mapping
Erik Proper
DUTCH COMPUTER SCIENTIST
Henderik A. Proper; Henderik Alex Proper; H.A. Proper; Proper, Erik; Henderik Proper
Henderik Alex (Erik) Proper (born 22 May 1967) is a Dutch computer scientist, an FNR PEARL Laureate, and a senior research manager within the Computer Science (ITIS) department of the Luxembourg Institute of Science and Technology (LIST).
proper motion
![Proper motion of [[61 Cygni]] in one year intervals.](https://commons.wikimedia.org/wiki/Special:FilePath/61 Cygni Proper Motion.gif?width=200 "Proper motion of [[61 Cygni]] in one year intervals.")
![March equinox]] (center of the sun's position then) at the J2000 epoch, is vector ''V''.<br>In red the diagram adds the components of proper motion across the [[celestial sphere]].<br>An ideal time to measure exactly such a small annual shift is at culmination. The culmination of the star is daily reached when the observer (and earth) passes as shown by the blue arrows "beneath" the star.<br>The positive axes of the two components of its usually annually measured or published shift in proper motion are the exaggerated red arrows, note: the right arrows point to the east horizon. One red annotation is subtly shorter as the cosine of a star resting at 0° declination is 1, so such a star's east or west shift would not need to be multiplied by the cosine of its declination.<br>The proper motion vector is '''''μ''''', ''α'' = [[right ascension]], ''δ'' = [[declination]], ''θ'' = [[position angle]].](https://commons.wikimedia.org/wiki/Special:FilePath/Components of proper motion.svg?width=200 "March equinox]] (center of the sun's position then) at the J2000 epoch, is vector ''V''.<br>In red the diagram adds the components of proper motion across the [[celestial sphere]].<br>An ideal time to measure exactly such a small annual shift is at culmination. The culmination of the star is daily reached when the observer (and earth) passes as shown by the blue arrows \"beneath\" the star.<br>The positive axes of the two components of its usually annually measured or published shift in proper motion are the exaggerated red arrows, note: the right arrows point to the east horizon. One red annotation is subtly shorter as the cosine of a star resting at 0° declination is 1, so such a star's east or west shift would not need to be multiplied by the cosine of its declination.<br>The proper motion vector is '''''μ''''', ''α'' = [[right ascension]], ''δ'' = [[declination]], ''θ'' = [[position angle]].")
ASTRONOMICAL MEASURE OF THE OBSERVED CHANGES IN THE APPARENT PLACES OF STARS IN THE SKY
Proper Motion; Proper motions; Improper motion; Intrinsic motion; Proper-motion; Common proper motion star; Proper motion star; High proper motion star
¦ noun Astronomy the part of the apparent motion of a star due to its actual movement in space relative to the sun.
proper noun
GRAMMATICAL CONCEPT
ProperNames; Common noun; Proper names; Proper nouns; Improper noun; Proper name; Common nouns; Proper Noun; Proper name (linguistics); Non-proper noun; Non-proper nouns; Proper noun and common noun; Proper and common noun; Proper versus common noun; Proper versus common nouns; Common and proper nouns; Common and proper noun; Common-noun phrase; Common noun phrase; Proper noun phrase; Proper-noun phrase; Proper and common nouns
also proper name
(proper nouns)
A proper noun is the name of a particular person, place, organization, or thing. Proper nouns begin with a capital letter. Examples are 'Margaret', 'London', and 'the United Nations'. Compare common noun
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N-COUNT
Wikipedia
Proper map
In mathematics, a function between topological spaces is called proper if inverse images of compact subsets are compact. In algebraic geometry, the analogous concept is called a proper morphism.
