| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,516,077,493 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
apparent magnitude |
Also found in: Wikipedia | 0.09 sec. |
|
apparent magnitude: see magnitude magnitude, in astronomy, measure of the brightness of a star or other celestial object. The stars cataloged by Ptolemy (2d cent. A.D.), all visible with the unaided eye, were ranked on a brightness scale such that the brightest stars were of 1st magnitude and the ..... Click the link for more information. . How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | ||
|---|---|---|---|
| At its closest approach to Earth early Sunday, the asteroid will shine at a stellar magnitude of 9, about one-sixteenth the brightness of the faintest star visible without a telescope. In 1935, Richter dressed up the Japanese method to create an earthquake index -- a simple numerical scale much like the stellar magnitudes used by his astronomical colleagues at the California Institute of Technology in Pasadena. |
| Encyclopedia |
| Free Tools: |
For surfers:
Browser extension |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|