Order of magnitude - Wikipedia, the free encyclopedia
Orders of magnitude are generally used to make very approximate comparisons. ... two numbers differ by one order of magnitude, one is about ten times larger than ...
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Apparent magnitude - Wikipedia, the free encyclopedia
The apparent magnitude (m) of a star, planet or other celestial body is a measure of its apparent brightness as seen by an observer on Earth. ...
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Glossary of Terms on EQ Maps
USGS Earthquake Hazards Program, responsible for monitoring, reporting, ... are many different ways that magnitude is measured from seismograms because each ...
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Richter Magnitude
John N. Louie, Ph.D provides the short and long explanation on how the Richter scale measures earthquake magnitude.
http://www.seismo.unr.edu/ftp/pub/louie/class/100/magnitude.html - k - In Cache

Stellar Magnitudes
Obviously the apparent magnitude is easy to determine because we only need measure the apparent brightness and convert it to a magnitude with no further ...
http://csep10.phys.utk.edu/astr162/lect/stars/magnitudes.html - k - In Cache

magnitude -- Britannica Online Encyclopedia
The brighter the object, the lower the number assigned as a magnitude. ... a reference to this article on magnitude will enhance your website, blog-post, ...
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Recent Earthquakes - Glossary
... are many different ways that magnitude is measured from seismograms because each ... A magnitude for distant earthquakes based on the amplitude of Rayleigh ...
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magnitude: Definition, Synonyms and Much More from Answers.com
magnitude ( ) n. Greatness of rank or position: "such duties as were expected of a landowner of his magnitude" (Anthony Powell)
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Sacramento Peak: Magnitude
The brighter the star, the lower its magnitude. ... place on Earth depends not just on the limiting magnitude at that place and time, ...
http://www.nso.edu/PR/answerbook/magnitude.html - k - In Cache

What Is Visual Magnitude?
Magnitude of an Astronomical Object "Visual magnitude" is a scale used ... only see stars as dim as 6th magnitude, but today we can see stars with ground ...
http://liftoff.msfc.nasa.gov/academy/universe/MAG.HTML - k - In Cache