| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,767,250,617 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
radial velocity |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.03 sec. |
|
radial velocity, in astronomy, the speed with which a star moves toward or away from the sun. It is determined from the red or blue shift in the star's spectrum spectrum, arrangement or display of light or other form of radiation separated according to wavelength, frequency, energy, or some other property. Beams of charged particles can be separated into a spectrum according to mass in a mass spectrometer (see mass ..... Click the link for more information. . radial velocity [′rād·ē·əl və′läs·əd·ē] (mechanics) The component of the velocity of a body that is parallel to a line from an observer or reference point to the body; the radial velocities of stars are valuable in determining the structure and dynamics of the Galaxy. Also known as line-of-sight velocity. 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 | ||
|---|---|---|---|
| 11b) and moved over the site with impressive outbound radial velocities to the southwest of Reese. Such an instrument will be useful for studying the distinctive spectral features of hot, rapidly rotating B[e] supergiant stars and for measuring shifts in the positions of spectral lines to determine the radial velocities of stars in binary systems. 2003: Signal Power and Radial Velocities from 30 July 2001 at Merriman, NE. |
| Encyclopedia |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|