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Topic: Declination


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In the News (Sun 21 Apr 19)

  
  Info and facts on 'Declination'   (Site not responding. Last check: 2007-10-22)
The declination of the sun (A typical star that is the source of light and heat for the planets in the solar system) (Sun Dec) is the angle between the rays of the sun and the plane of the earth equator.
Declination is used in some contexts that rule out astronomical declination, to mean the same as magnetic declination (The angle (at a particular location) between magnetic north and true north).
Declination is occasionally and erroneously used to refer to the linguistic term declension (The inflection of nouns and pronouns and adjectives in Indo-European languages).
www.absoluteastronomy.com /encyclopedia/d/de/declination.htm   (803 words)

  
 Declination - Wikipedia, the free encyclopedia
The declination of the sun (Sun Dec) is the angle between the rays of the sun and the plane of the earth equator.
The stars have approximately the same declination from year to year, but they do have proper motion that can be measured in whole degrees after the passing of centuries.
Declination is used in some contexts that rule out astronomical declination, to mean the same as magnetic declination.
en.wikipedia.org /wiki/Declination   (607 words)

  
 DECLINATION - LoveToKnow Article on DECLINATION
In 1596 at London the angle of declination was 11 E. of N., in 1652 magnetic north was true north, in I8I5 the magneti needle pointed 241/2 W. of N., ill 1891 18 W., in 1896 17 56 W. and in 1906 17 45.
The angle is gradually diminishing and the declination will in time again be 0, when it will slowly increase in an easterly direction, the north magnetic pole oscillating slowly around the North Pole.
In astronomy the declination is the angular distance, as seen from the earth, of a heavenly body from the celestial equator, thus corresponding with terrestrial latitude.
www.1911encyclopedia.org /D/DE/DECLINATION.htm   (152 words)

  
 Encyclopedia: Declination   (Site not responding. Last check: 2007-10-22)
A diagram demonstrating the varying declination of the Sun during the year, marking the Azimuths in °N where the sun rises and sets at summer and winter solstice at a place of 56°N latitude.
The magnetic declination (or magnetic variation) at any point on the earth is a property of the geomagnetic field defined as the angle that must be added or subtracted in converting between two kinds of directional information: the direction of the needle on a magnetic compass located there, and the...
Declination is expressed as an angle with respect to the celestial equator.
www.nationmaster.com /encyclopedia/Declination   (1760 words)

  
 Declination SIG - Introduction to Declination   (Site not responding. Last check: 2007-10-22)
The declination of the planets in any given computer chart can be marked as either N (north) or S (south), or marked with a (+) for N, and a (-) for S. These two aspects have energy manifestations just as longitudinal aspects do.
Natal declination works in looking at birth defects too, and Jayne uses some examples of maturity onset illnesses, with progressions and transits, that last as long as the declination is in orb.
In declination the first day of spring, 0º of Aries, the Sun is on the 0 degree line in declination, beginning its climb to the north, and by virtue of looking at the wheel of houses, its ascent to the first day of summer, or 0º of Cancer.
www.declination.org /intro.htm   (2494 words)

  
 Magnetic declination - Wikipedia, the free encyclopedia
Most use of declination is in conjunction with a map; as stated, that map may state the declination.
A prediction of the current magnetic declination for a given location (based on an world-wide empirical model of the deep flows described above) can also be obtained on-line from a web page operated by the National Geophysical Data Center, a division of the National Oceanic and Atmospheric Administration of the United States.
In navigation the terminology of geomagnetism is used differently and in particular magnetic declination is divided into two parts namely Magnetic Variation and Magnetic Deviation, there are also three types of bearings True, Magnetic and Compass which are related by the rules.
en.wikipedia.org /wiki/Magnetic_declination   (1183 words)

  
 declination --¬† Encyclop√¶dia Britannica
Declination and right ascension, an east-west coordinate, together define the position of an object in the sky.
Thus, +90° declination marks the north celestial pole, 0° the celestial equator, and -90° the south celestial pole.
Thus, +90° declination marks the north celestial pole, 0° the celestial equator, and -90° the south celestial...
www.britannica.com /eb/article-9029708?tocId=9029708   (713 words)

  
 SOLAR DECLINATION   (Site not responding. Last check: 2007-10-22)
Declination is the angular distance of the sun north or south of the earth's equator.
The earth's equator is tilted 23.45 degrees with respect to the plane of the earth's orbit around the sun, so at various times during the year, as the earth orbits the sun, declination varies from 23.45 degrees north to 23.45 degrees south.
Around December 21, the northern hemisphere of the earth is tilted 23.45 degrees away from the sun, which is the winter solstice for the northern hemisphere and the summer solstice for the southern hemisphere.
holodeck.st.usm.edu /vrcomputing/vrc_t/tutorials/solar/declination.shtml   (212 words)

  
 PY 124: Declination   (Site not responding. Last check: 2007-10-22)
Declination is a coordinate on the celestial sphere that is similar to, but not identical to, latitude on the Earth's surface.
The declination of any celestial object is the angle between the celestial equator and the object as measured from the Earth.
Declination is measured as degrees north or south of the celestial equator.
www.physics.ncsu.edu /courses/astron/Declination.html   (165 words)

  
 Orbits and the Ecliptic Plane
Right ascension and declination are like longitude and latitude on the surface of the Earth except that they are measured with respect to the celestial sphere with the vernal equinox as the origin.
A declination south of the celestial equator is given a negative sign.
Measurements with respect to the celestial sphere are typically expressed as right ascension and declination, measurements analogous to latitude and longitude on the Earth's surface.
hyperphysics.phy-astr.gsu.edu /hbase/eclip.html   (870 words)

  
 Planetary Declination
The Sun transits to North and South declinations of 23.27 degrees during the Solstice dates (June 22 and December 22) and crosses the equator on this path North and South near the the Equinox dates (March 21 and September 21).
In general, the Declination is the measurement of a planet's movement relative to the Earth's latitudes.
In the declination, the planets' travels are measured against the celestiallatitude (the equator).
www.lunarliving.org /calendars/declinations.php   (499 words)

  
 Geomagnetism - Magnetic declination
Changes in declination become increasingly as one approaches the North Magnetic Pole, a result of the weak horizontal component of the magnetic field.
Declination is defined as the angle between magnetic north and the true north.
Declination is also shown on aeronautical charts as contour lines and on hydrographic (marine) charts either as contour lines or in the form of a compass rose, depending on the scale of the chart.
gsc.nrcan.gc.ca /geomag/field/magdec_e.php   (1110 words)

  
 Right Ascension & Declination   (Site not responding. Last check: 2007-10-22)
Right Ascension (abbreviated R.A.) and Declination (abbreviated Dec) are a system of coordinates used by astronomers to keep track of where stars and galaxies are in the sky.
Declination is measured in degrees, and refers to how far above the imaginary "celestial equator" an object is (like latitude on the Earth).
Declination, like latitude, is measured as 0 degrees at the equator, +90 degrees at the North Pole, and -90 degrees at the South Pole.
liftoff.msfc.nasa.gov /academy/universe/RADEC.HTML   (329 words)

  
 Celestial Coordinate System
In the celestial coordinate system the North and South Celestial Poles are determined by projecting the rotation axis of the Earth to intersect the celestial sphere, which in turn defines a Celestial Equator.
The celestial equivalent of latitude is called declination and is measured in degrees North (positive numbers) or South (negative numbers) of the Celestial Equator.
The right ascension (R.A.) and declination (dec) of an object on the celestial sphere specify its position uniquely, just as the latitude and longitude of an object on the Earth's surface define a unique location.
csep10.phys.utk.edu /astr161/lect/time/coordinates.html   (700 words)

  
 Magnetic Declination
Declination is shown on all USGS topo maps, but you need to cautious in using that value.
For example, if the declination for your location is 16 degrees east, you simply adjust the north orienting arrow until it is pointing to 16 degrees east on the declination scale.
While they still have a declination scale marked on the base of the vial, it isn't possible to rotate the north orienting arrow.
members.aol.com /annapress/Wild8.html   (611 words)

  
 Declination
Declination is the angular difference between the geometric North Pole and the magnetic north pole measured from your location.
For 7 degrees West declination, turn the screw until the dial points to 7 degrees on the West declination side.
If you are near the line of 0 declination, don't need the highest accuracy, or are working exclusively with the compass only and field bearings, this works fine.
backpackskidive.org /magnetic1.htm   (442 words)

  
 Magnetic declination   (Site not responding. Last check: 2007-10-22)
Magnetic declination is the difference between true north (the axis around which the earth rotates) and magnetic north (the direction the needle of a compass will point).
How far your path varied from true north depends on where you started from; the angle between a straight north-south line and the line you walked is the magnetic declination in the area you were walking.
The exact amount that you need to adjust the declination on your compass to reconcile magnetic north to true north is given in the map legend to the left of the map scale.
www.cs.nmsu.edu /~jbj/index_auxil/idaho_virtual_campus/mag_dec.htm   (368 words)

  
 Questions from the Field: How can I find the declination for my new location?
Magnetic declination is the angular difference between the true north (true meridian) and magnetic north (magnetic meridian).
This difference, or declination, can be manually added (if declination is westerly) or subtracted (if declination is easterly) to a compass reading to get the direction from true north.
This is the line of zero declination and is where a magnetic needle points to true north.
www.proaxis.com /~johnbell/iitt/questionftf49.htm   (977 words)

  
 Introduction to declinations: Kt Boehrer
By identifying a planet's degree of declination we are able to establish the degree of longitude that that planet is most strongly influencing.
A planet going retrograde in a longitudinal AND declinational degree will affect those people most strongly who have placements at that particular degree of both longitude and declination, whereas the individual whose planetary placement is not coordinated with the degree of declination may experience little or nothing of the action.
It is important to understand and keep in mind at all times that there are 360 degrees of longitude and 360 degrees of declination and together they form a grid of longitude and declination that locates an object exactly in space in relation to the Sun and the planet Earth.
www.mandala.be /declination/boehrer1.htm   (1243 words)

  
 How to Deal With Declination
It would be nice if the declination was the same everywhere and you could convert from one to the other with a formula—like you can do with Celsius and Fahrenheit—but it doesn't work that way.
Declination varies dramatically all over the planet—as much as 50 degrees just within the United States—and the only way to find the correct declination for a given area is by looking it up.
Search using "magnetic declination city" where you replace 'city' with the nearest city (or whatever point of reference is most convenient) for the area whose declination you want.
www.atlasquest.com /tutorials/compass/declination.html   (632 words)

  
 declination   (Site not responding. Last check: 2007-10-22)
Declination = degrees measured north or south of the celestial equator.
For example, let's say your latitude is 40 degrees north, and you want to know if the brilliant star Canopus (alpha-Carinae), declination -53 degrees south, is ever visible from your location.
If your co-latitude plus the declination of the star is greater than zero, then it will rise above your horizon at least sometime during the year.
homepage.mac.com /kvmagruder/bcp/sphere/d.htm   (317 words)

  
 Right Ascension / Declination   (Site not responding. Last check: 2007-10-22)
Right ascension and declination are what astronomers use to precisely locate objects on a celestial map, and are equivalent to the imaginary lines of longitude and latitiude used in maps of the earth.
Although it is obvious that all of the stars lie at different distances from the earth, it is also convenient to think of the sky as a fixed sphere with the earth at the center.
Declination is measured in the same way as latitude, with the equator being 0 degrees and anything north of the equator having a positive value and south having a negative value.
members.ncats.net /astro/reference/ra.html   (391 words)

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