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apparent magnitude

apparent magnitude

A Dictionary of Astronomy | 1997 | Copyright

apparent magnitude (symbol m) The brightness of a celestial object as measured by the observer. Sirius, the brightest star, has an apparent magnitude of -1.44, and the faintest stars visible to the naked eye under the most favourable conditions have magnitudes of about +6.5. Stars of magnitude +23 are regularly measured at modern professional observatories, and as faint as +30 with the Hubble Space Telescope. If m carries no subscript it is assumed to be the visual magnitude. The notation m bol denotes the apparent bolometric magnitude.
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"apparent magnitude." A Dictionary of Astronomy. 1997. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

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apparent magnitude

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

apparent magnitude see magnitude .

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"apparent magnitude." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1E1-X-apparntmag.html

"apparent magnitude." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-X-apparntmag.html

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