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Telescope > Declination
The following information is about Declination.
Declination Defined
One of two coordinates for the celestial sphere, which are analogous to latitude and longitude for the Earth's surface. The declination of an object is how many degrees it is north or south of the celestial equator. The other coordinate is called right ascension, and it is measured eastward from a somewhat arbitrary "prime meridian" on the sky.
The "prime meridian" passes through the position of the Sun at the time of the vernal equinox. Thus its position changes slowly over the years, due to the precession of the equinoxes. The position of the celestial poles also changes with precession. Thus, to locate an object from its right ascension and declination, you must also know the date for which those coordinates are valid; that date is called the epoch of the coordinates.
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Off-site Declination Links, User Submitted
The following links have been collected through user bookmark submission in the Declination category. Please note, because these resources are off-site we cannot guarantee the accuracy or quality of any information.
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Fri Jun 19
- Estimated Value of Magnetic Declination - NOAA: Computes declination by zip code as well as by latitude and longitude.
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Tue Jun 2
- NOAA's Geophysical Data Center - Geomagnetic Data: Calculate declination
If you would like to find additional social bookmark based links on the topic of we recommend the Open Tag Directory > Declination. If you would like to find related tags we recommend Tag Patterns > Declination
Off-site Declination Research Links
If you still need additional information on Declination then we suggest the following off-site resources. Please note, because these resources are off-site we cannot guarantee the accuracy or quality of any information.
- A9 > Declination
- Alexa > Declination
- DMOZ > Declination
- Feeds Filtered > Declination
- Google > Declination
- News Meme > Declination
- Nuah: News > Declination
- The Feed Directory > Declination
- OBP > Declination
- Open Tag Directory > Declination
- Podzy > Declination
- Yahoo > Declination
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