Astronomy: General

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twinkling

A Dictionary of Earth Sciences | 1999 | | Copyright

twinkling In mineral optics, the effect observed in plane-polarized light when a thin section of an anisotropic mineral with widely differing refractive indices is rotated rapidly on the stage. The ‘twinkling’ appearance is caused by the rapid changes in relief. Calcite is a well-known example.

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AILSA ALLABY and MICHAEL ALLABY. "twinkling." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "twinkling." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O13-twinkling.html

AILSA ALLABY and MICHAEL ALLABY. "twinkling." A Dictionary of Earth Sciences. 1999. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-twinkling.html

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twinkling

A Dictionary of Astronomy | 1997 | Copyright

twinkling The rapid fluctuations in brightness of stars, more properly known as scintillation. Twinkling is caused by atmospheric turbulence distorting the incoming wavefront from a star. Twinkling is less noticeable in planets, which have an extended area. Excessive twinkling is a sign of bad seeing.

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"twinkling." A Dictionary of Astronomy. 1997. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O80-twinkling.html

"twinkling." A Dictionary of Astronomy. 1997. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-twinkling.html

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twinkling

The Columbia Encyclopedia, 6th ed. | 2011 | Copyright

twinkling in astronomy: see seeing .

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"twinkling." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1E1-X-twinklin.html

"twinkling." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-X-twinklin.html

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Free newspaper and magazine articles

	Twinkling.(Four Poems)(Poem) Magazine article from: World Literature Today; 3/1/2006
	Twinkling gold nanostars for biomedical imaging.(MATERIALS) Newspaper article from: Advanced Ceramics Report; 9/1/2009
	Radio twinkling in Venusian ionosphere. Magazine article from: Science News; 2/25/1989