|
| |
| | Celestial Navigation |
 | | The declination of the celestial body (the body is denoted by star on Figure 4) is the arc of the body's meridian from the celestial equator to the place of the body on the sphere. | | | If we have a celestial body (denoted by the yellow star in Figure 3) on the celestial sphere, then it's azimuth is the arc of the celestial horizon which lies between the observer's meridian and the vertical circle of the body. | | | NE.The altitude of the body is the arc of it's vertical circle from the celestial horizon to the place of the body on the sphere. |
|
http://www.math.ubc.ca/~cass/courses/m308-02b/projects/jackson/Page1.html
(795 words)
|
|
| |
| | The Celestial Sphere |
| | Celestial longitude is the angular distance along the ecliptic, again from the vernal equinox; celestial latitude is the distance north or south of the ecliptic along a great circle passing through the two celestial poles. | | | Accounts of the celestial sphere typically refer to other circles on its surface, including the arctic and antarctic circles, the zodiac, tropics, and the solstitial and equinoctial colures. | | | The Tropic of Cancer is a circle parallel to the celestial equator which touches the ecliptic at its northernmost point; when the sun is at this point, just about to enter the zodiacal sign of Cancer, it is the summer solstice. |
|
http://www.hps.cam.ac.uk/starry/armillmaths.html
(710 words)
|
|
| |
| | Celestial Sphere |
| | The celestial sphere has a north and south celestial pole as well as a celestial equator which are projected reference points to the same positions on the Earth surface. | | | It is measured north and south of the celestial equator and ranges from 0° at the celestial equator to 90° at the celestial poles, being taken to be positive when north of the celestial equator and negative when south. | | | The celestial sphere has a north and south celestial pole as well as a celestial equator which are projected from reference points from the Earth surface. |
|
http://zebu.uoregon.edu/~js/ast122/lectures/lec02.html
(2041 words)
|
|
| |
| | [No title] |
| | This celestial spheresouthern constellation is one of the largest in the sky. | | | Its ultimate limit was the primum mobile, whose diurnal rotation was conferred upon it by a transcendental God, not part of the universe, a motionless prime mover and first cause. | | | Therefore, points north of the celestial equator have positive declination, while those to the south have negative declination. |
|
http://www.worldhistory.com/wiki/C/Celestial-sphere.htm
(1073 words)
|
|
| |
| | Astronomy Without a Telescope |
| | The arc of the celestial equator moves to the north, but the arc still intercepts the horizon at the exactly east/west points. | | | For northern hemisphere observers, which celestial object would be above the horizon for the greatest amount of time: one that is on the celestial equator, one that is 30° above the celestial equator, one that is 70° above the celestial equator, or one that is 40° below the celestial equator? | | | At the equator, you see the celestial equator arcing from exactly east to the zenith to exactly west. |
|
http://www.astronomynotes.com/nakedeye/s4.htm
(1466 words)
|
|
| |
| | The Celestial Sphere |
| | The ecliptic and the celestial equator intercept at two points, associated with the zodiacal constellations of Aries and Libra. | | | The first point of Aries is defined to be the point where the Sun, moving along the ecliptic, crosses the celestial equator from south to north and forms the basis of the most often used celestial coordinate system. | | | At the summer and winter solstices the Sun is directly overhead at noon at the Tropics of Cancer and Capricorn, respectively, these being the zodiacal constellations associated with those parts of the ecliptic where the Sun is at these times. |
|
http://www.empirenet.com/tajames/astronomy/notes-celestial-sphere.html
(2565 words)
|
|
| |
| | Celestial Coordinate System |
| | The point on the ecliptic where the Sun is most north of the celestial equator is termed the Summer Solstice and the point where it is most south of the celestial equator is termed the Winter Solstice. | | | The zero point for celestial longitude (that is, for right ascension) is the Vernal Equinox, which is that intersection of the ecliptic and the celestial equator near where the Sun is located in the Northern Hemisphere Spring. | | | The term solstice derives from a root that means to "stand still"; at the solstices the Sun reaches its most northern or most southern position in the sky and begins to move back toward the celestial equator. |
|
http://csep10.phys.utk.edu/astr161/lect/time/coordinates.html
(700 words)
|
|
| |
| | Astronomical Leage - Astro Note 11: Celestial Coordinate Systems |
| | That intersection where the Sun appears to cross the celestial equator from south to north is chosen as the reference point and is known as the vernal equinox. | | | Negative declinations indicate objects south of the celestial equator. | | | Right ascension, designated alpha, is measured along the celestial equator eastward from the vernal equinox. |
|
http://www.astroleague.org/al/astrnote/astnot11.html
(607 words)
|
|
| |
| | Celestial Sphere |
| | The perpendicular angle of a star north or south of the celestial equator is given by its declination, indicated by lower case Greek letter Delta. | | | The extension of the Earth's rotation axis to the sky defines the North and South Celestial Poles (the NCP and SCP), while the extension of the Earth's equatorial plane defines the celestial equator. | | | As the Sun traverses the ecliptic path, it appears to move against a band of 12 ancient constellations called the Zodiac, which in traditional order are: |
|
http://www.astro.uiuc.edu/~kaler/celsph.html#zodiac
(1937 words)
|
|
| |
| | The Celestial Sphere |
| | Thus, we shall be able to specify the precise location of things on the celestial sphere by giving the celestial analog of their latitudes and longtitudes, or something related to those quantities. | | | The point on the celestial sphere that is directly over our heads at a given time is termed the zenith. | | | At any one time we see no more than half of this sphere, but we will refer loosely to the imaginary half-sphere over our heads as just the celestial sphere (see adjacent figure). |
|
http://csep10.phys.utk.edu/astr161/lect/celestial/celestial.html
(824 words)
|
|
| |
| | Motions of the Celestial Bodies |
| | The zenith is the point on the celestial sphere that is directly overhead at your location. | | | The ecliptic is inclined to the celestial equator by about 23°. | | | It also moves around the celestial sphere from west to east in 27.3 days. |
|
http://www.sciencemaster.com/space/item/motions.php
(879 words)
|
|
| |
| | Astronomy - MSN Encarta |
| | The celestial equator is at declination 0°, the north celestial pole is at declination 90°, and the south celestial pole has a declination of –90°. | | | This sphere has north and south celestial poles directly above Earth’s North and South poles. | | | The celestial sphere is a giant imaginary globe surrounding Earth. |
|
http://encarta.msn.com/encyclopedia_1741502444_5/Astronomy.html
(1298 words)
|
|
| |
| | Celestial Sphere Page : Viewing the Stars |
| | Declination is measured in degrees, minutes and seconds of arc (that is, angular unites) and is measured from the celestial equator. | | | Professional Astronomers denote the position of an object in the sky by right ascension (RA) and declination (Dec). | | | Extend the Earth's equator outward, thus forming the celestial equator. |
|
http://inkido.indiana.edu/a100/celestialsphere.html
(447 words)
|
|
| |
| | The Celestial Sphere |
| | Like the Earth, the celestial sphere has a celestial equator and north and south celestial Poles, or NCP and SCP, repectively, which are just the projections of these points on Earth onto the sky. | | | Therefore, the North Celestial Pole is that point in the sky directly above the North Pole on Earth. | | | Declination 0° is the celestial equator, and increases as you move towards the NCP. |
|
http://www.astro.lsa.umich.edu/Course/Labs/celestial_sphere/cs.html
(1455 words)
|
|
| |
| | Definitions Pertaining to the Celestial Sphere |
| | Vernal Equinox -- the position on the celestial sphere where the sun crosses the celestial equator going from south to north. | | | Zenith -- the point of the celestial sphere directly overhead, 90 degrees above the horizon, for any point on the earth. | | | Declination -- the angular distance of a celestial body from the celestial equator along the hour circle to the body. |
|
http://www.phys-astro.sonoma.edu/courses/a231/some_definitions.html
(732 words)
|
|
| |
| | Celestial pole - Wikipedia, the free encyclopedia |
| | Make an equilateral triangle, the third point of which is the South Celestial Pole. | | | The third imaginary corner will be the South Celestial Pole. | | | The celestial poles are also the poles of the celestial equatorial coordinate system, meaning they have declinations of +90 degrees and -90 degrees (for the north and south celestial poles, respectively). |
|
http://en.wikipedia.org/wiki/Celestial_pole
(538 words)
|
|
| |
| | Photography techniques: Angles and the celestial sphere - an introduction |
| | are given by directions in the sky or on the ground, or better put, directions on this celestial sphere, where the sky and ground are part of. | | | The figure above shows this imaginary celestial sphere with reference points, arcs and planes drawn into it. | | | Directions on this celestial sphere are given by angles. |
|
http://www.weather-photography.com/techniques.php?cat=optics&page=celestialsphere
(1133 words)
|
|
| |
| | Astrology Celestial Sphere - © Dr Shepherd Simpson |
| | A Static View of the Celestial Sphere The Celestial Equator is the horizontal plane in the centre. | | | Where these two meet are the Equinoxes and where they lie furthest from each other are the Solstices. | | | This is a view of the Earth at Equinox, so the light and dark portions of the Earth are the same size. |
|
http://www.geocities.com/astrologyancientconcepts/celestialsphere.htm
(621 words)
|
|
| |
| | Open Course : Astronomy : Introduction : Lecture 2 : Motion of Stars and Sun |
| | The North Celestial Pole is the point on the celestial sphere directly above the Earth's North Pole. | | | The celestial equator is directly above the Earth's equator. | | | The south celestial pole is at 90° south declination (-90° dec). |
|
http://www.opencourse.info/astronomy/introduction/02.motion_stars_sun
(2368 words)
|
|
| |
| | The Celestial Sphere |
| | 2000 years ago Polaris was not near the north celestial pole due to the Earth's Precession. | | | It was apparently made of some heavenly material we could not fathom. | | | The proposition that the earth is not the centre of the world and immovable, but that it moves, and also with a diurnal motion, is equally absurd and false philosophically, and theologically considered, at least erroneous in faith.” (See The Church Sentences Galileo.) |
|
http://members.cox.net/deleyd/religion/solarmyth/csphere.html
(477 words)
|
|
| |
| | Online Book |
| | The celestial equators is the projection of the Earth's equator onto the sky. | | | What you see in the sky depends on your location on the Earth. | | | This site provides a good definition of the ecliptic and the celestial sphere. |
|
http://www.physics.sfasu.edu/astro/astronomylinks/all2.html
(1764 words)
|
|
| |
| | ZET - Astrology Software - Celestial Sphere |
| | The tableau depicts the celestial vault at night-time as a globe which can be viewed as if from inside or outside, or as transparent. | | | The mini-button near the tag "Star aspects" displays a list of the 3D aspects. | | | The Celestial Sphere (planetarium) tableau is selected by clicking the "Celestial Sphere" |
|
http://www.zaytsev.com/EManual/celestial_sphere.html
(722 words)
|
|
| |
| | Phys. 101: Activity 1. Celestial Sphere |
| | Whoever is today's leader should read each section aloud as you come to it. | | | Label it's upper end NH, for the northern horizon. | | | The celestial sphere is an imaginary spherical surface which surrounds the Earth, on which the stars are located. |
|
http://solar.physics.montana.edu/welsch/Phys101/activity1b.html
(993 words)
|
|
| |
| | Observing the Sky: The Celestial Sphere |
| | The ecliptic is 23.5' to the north of the celestial equator on the Summer Solstice, and 23.5' to the south of the celestial equator on the Winter Solstice. | | | The Earth's North and South Poles are extended out to the sphere to mark the north and south celestial poles. | | | This is the same word used to describe the Earth's path around the Sun because the Earth's motion is what makes the Sun seem to move among the stars. |
|
http://www.onr.navy.mil/focus/spacesciences/observingsky/sphere1.htm
(396 words)
|
|
| |
| | * Celestial sphere - (Astrology): Definition |
| | Therefore, although the lower four centres work through the Earth Zodiac, they form the connections between this and the higher zodiacs, giving the magician the ability to contact the 360 spirits of the degrees of every zodiac or celestial sphere. | | | The apparent sphere, with the Earth at the centre, on which the celestial bodies appear to be projected | | | celestial sphere The conceptualization of the infinite heavens as a sphere revolving around Earth, based upon the part of the skies visible from a point on Earth. |
|
http://en.mimi.hu/astrology/celestial_sphere.html
(658 words)
|
|
| |
| | Orbits and the Ecliptic Plane |
| | A declination south of the celestial equator is given a negative sign. | | | Declination is expressed as an angle with respect to the celestial equator. | | | The apparent path of the Sun's motion on the celestial sphere as seen from Earth is called the ecliptic. |
|
http://hyperphysics.phy-astr.gsu.edu/hbase/eclip.html
(870 words)
|
|
| |
| | Celestial sphere - Wikipedia, the free encyclopedia |
| | Likewise, one can locate the Celestial Tropic of Cancer, Celestial Tropic of Capricorn, North Celestial Pole, and South Celestial Pole. | | | This divides the sphere into the north celestial hemisphere and the south celestial hemisphere. | | | A celestial sphere can also refer to a physical model of the celestial sphere. |
|
http://en.wikipedia.org/wiki/Celestial_sphere
(406 words)
|
|
| |
| | Navigator Light Software |
| | The seconds of arc are not used in the celestial navigation, since the angle measurement instrument - the sextant - is not precise enough to measure them. | | | The position of the celestial bodies and points on the surface of the earth may be described by angles. | | | 1 - The Earth and the Celestial Sphere |
|
http://www.tecepe.com.br/nav/inav_c11.htm
(1545 words)
|
|
| |
| | Celestial Sphere Page 2 |
| | Declination of an object is the angular distance north or south of the celestial equator. | | | The celestial equator divides the sky into northern and southern hemispheres, just as the Earth's equator divides the Earth into two hemispheres. | | | Thus, all one has to do to envision the celestial sphere is to extend out Earth's major geologic features such as the equator, north and south poles. |
|
http://inkido.indiana.edu/a100/celestialsphere2.html
(193 words)
|
|
| |
| | eBay - celestial sphere, Asian Antiques, Antiques items on eBay.com |
| | Note: We recently made changes to enable you to view eBay search pages faster. | | | 1719 Mallet ARMILLARY SPHERE Celestial GLOBE World Map | | | PC LINEN New York World's Fair 1939 Celestial Sphere |
|
http://search-desc.ebay.com/search/search.dll?query=celestial+sphere&...
(298 words)
|
|
| |
| | Astronomy: The Celestial Sphere |
| | Altitude of Celestial Equator (Az.= 0 or 180) | | | The stars remain fixed on the celestial sphere with respect to themselves. | | | Just the celestial sphere plus the ecliptic, with solstices and equinoxes marked. |
|
http://astro.wsu.edu/worthey/astro/html/lec-celestial-sph.html
(657 words)
|
|
| |
| | Spherical Coordinate System Lab |
| | The coordinate measured along the celestial equator and numbered 0 through 24 is the right ascension and it is measured in arc hours. | | | The declination of the celestial equator is 0. | | | Declinations between the celestial equator and the south pole are negative. |
|
http://www.mc.cc.md.us/Departments/planet/planet/Coordinate_Systems_Lab.htm
(1626 words)
|
|
| |
| | Sky Publishing - Understanding Celestial Coordinates |
| | At any time half of the celestial sphere is above the horizon, half below. | | | The celestial dome with its starry decorations had to be a complete celestial sphere, early skywatchers figured out, because we never see a bottom rim as the dome tilts up and rotates around the Earth once a day. | | | The celestial coordinate system, which serves modern astronomy so well, is firmly grounded in the faulty world-view of the ancients. |
|
http://www.wwnorton.com/astro21/sandt/celcoords.html
(1413 words)
|
|
| |
| | THE CELESTIAL EQUATOR |
| | Directly above the equator of the earth we find the Celestial Equator in the sky. | | | In the case of the sky these are the North Celestial Pole and the South Celestial Pole. | | | Just as the earth's equator divides the sphere of the earth into two hemispheres - northern and southern -, so the Celestial Equator divides the apparent sphere of the sky, the Celestial Sphere, into a Northern and a Southern Celestial Hemisphere. |
|
http://www.deepcreekyachtclub.com/WebPage/Celestialequator.html
(348 words)
|
|
| |
| | Astronomy Without a Telescope |
| | Imagine the sky as a great, hollow, sphere surrounding the Earth. | | | This imaginary sphere is called the celestial sphere, and has a very large radius so that no part of the Earth is significantly closer to any given star than any other part. | | | I hope you will be able to distinguish between the convenience of the celestial sphere model and the way things really are. |
|
http://www.astronomynotes.com/nakedeye/s2.htm
(493 words)
|
|
| |
| | Celestial's Sphere, Heavenly Father's Home |
| | The Celestial Heavenly home of God, our Heavenly Father, his son Jesus Christ our Savior and, the Holy Ghost (our Heavenly Mother) and those worthy enough to and who have or will gain Eternal Life. | | | Congratulations are in order as David has been chosen and has had the honor placed upon him as: | | | December 31, 2000, as the World's 2nd International Time Zone moved on into Mankind's art history passing forever on into the veil of time gone by. |
|
http://www.owensart.com/celestial.htm
(267 words)
|
|
| |
| | Model & celestial, sphere. celestial globe , showing |
| | George Glazer Gallery--Cary Pocket GlobeCary and Terrestrial Pocket GlobesJohn and William Cary Rare Pair of Terrestrial and celestial 3-Inch Pocket Globes $15,000, the pairA pair of Cary pocket globes comprising a terrestrial and a, each in a fitted fishskin case. | | | In the most common form of celestial globe, a number of stars were marked on a sphere, and the constellation figures delineated. | | | The sphere was mounted by its poles (corresponding to the celestial poles) on a metal circle, or meridian. |
|
http://www.9-science.biz/globe_celestial.htm
(844 words)
|
|
| |
| | Celestial Sphere |
| | The celestial sphere is a large sphere surrounding the earth and with it we can keep references to where celestial bodies lie in the sky. | | | The celestial equator lies along the celestial sphere in the same plane that includes the Earth's equator. | | | By convention, this fiducial direction is the point on the celestial where the Sun is found on the first day of spring (the vernal equinox). |
|
http://astrosun.tn.cornell.edu/academics/courses/astro201/cel_sphere.htm
(416 words)
|
|
| |
| | The Celestial Sphere--lesson plan #1a |
| | Celestial sphere, constellation, zodiac, celestial pole, the Pole Star ("Polaris"), celestial equator, rotation of the Earth, planets [theodolite, equatorial axis]. | | | That is "the celestial sphere." In ancient times people believed such a sphere actually existed and was rotating around us. | | | An introduction to the celestial sphere, describing its |
|
http://www.phy6.org/stargaze/Lcelsph.htm
(1079 words)
|
|
| |
| | Equatorial coordinate system - Wikipedia, the free encyclopedia |
| | The projection of the Earth's equator onto the celestial sphere is called the celestial equator. | | | Similarly, projecting the geographic poles onto the celestial sphere defines the north and south celestial poles. | | | The longitudinal angle is called the right ascension (RA for short). |
|
http://en.wikipedia.org/wiki/Equatorial_coordinate_system
(392 words)
|
|
| |
| | Celestial Sphere |
| | This all encompassing sphere was first postulated by the ancients and was called the | | | The Celestial Sphere was (and remains) an useful way in which to represent the Universe and, in fact, it is still the way astronomers choose to model the observable sky. | | | Physically the model does not make sense as we know that the Earth is not stationary, it is not in the center of the Universe, and the stars (and other celestial objects) are not attached to the surface of a large sphere (i.e., stellar positions) and they do not orbit around the Earth. |
|
http://zebu.uoregon.edu/~imamura/121/sep29/motions.html
(314 words)
|
|
| |
| | SurfWax: News, Reviews and Articles On Celestial Sphere |
| | Earth is located at the center of this celestial sphere. | | | Ten in the evening: pints at the pub; a midnight contemplation of the celestial sphere; meditation at four in the morning. | | | The location of the North (and South) Celestial Pole is defined by projecting the axis of the earth onto the celestial sphere; consequently, as the axis changes position, so, too, does the "North Star." As a result, 5,000 years ago the earth's axis pointed toward Draco, and the North Star was Thuban. |
|
http://news.surfwax.com/astronomy/files/Celestial_Sphere_Astronomy.html
(571 words)
|
|
| |
| | NASA - Starfinder Series - Program 21: "Using the Celestial Sphere" |
| | The celestial globe is used to locate a star or the planets on the celestial sphere. | | | This program provides an introduction to the celestial globe, which is a model of the celestial sphere. | | | The program highlights the main parts of a celestial globe, and explains how one's location on the Earth affects which stars are seen. |
|
http://www.nasa.gov/audience/foreducators/topnav/schedule/programdescriptions/Using_Celestial_Sphere_6-10.html
(156 words)
|
|
| |
| | The Celestial Sphere with an Introduction to the Radio Telescope |
| | The answer is simple: it is the earth that is rotating on its axis once every day. | | | This sphere was believed to rotate approximately once every day, creating the apparent motion of the stars across the sky. | | | Using the attached protractor, and knowledge of how the earth rotates, these students have determined what part of the celestial sphere that they will be probing at any time during the upcoming observation. |
|
http://www.physics.unc.edu/~reichart/sphere.html
(1113 words)
|
|
| |
| | celestial sphere |
| | the imaginary spherical shell formed by the sky, usually represented as an infinite sphere, the center of which is a given observer's position. |
|
http://www.infoplease.com/dictionary/celestial+sphere
(40 words)
|
|
| |
| | The Celestial Sphere |
| | You can have them draw various things on their Celestial Sphere (see for example the pdf file below for what I do). | | | This lab introduces the concepts of the Celestial Sphere, the Ecliptic, RA and Dec, daily motions in the sky, and yearly motion of Solar System bodies in the sky. | | | The second part of the lab consists in them making their own Celestial Sphere using balloon and markers. |
|
http://www.astro.columbia.edu/~michel/lab/fall2004/celestialsphere.html
(114 words)
|
|
| |
| | Zodiac - MSN Encarta |
| | The width of the zodiac was determined originally so as to include the orbits of the Sun and Moon and of the five planets (Mercury, Venus, Mars, Jupiter, and Saturn) that were known to the people of ancient times. | | | Zodiac, imaginary belt in the celestial sphere, extending about 8° on either side of the ecliptic, the apparent path of the Sun among the stars. | | | Spend less time searching and more time learning. |
|
http://encarta.msn.com/encyclopedia_761560429/Zodiac.html
(327 words)
|
|
| |
| | Celestial Sphere - SHOP.COM |
| | The sphere is a skeleton celestial globe, with circles divided into degrees for angular movement. | | | You might try modifying your search term or selecting one of the department links below. |
|
http://www.shop.com/op/aprod-p34534388
(148 words)
|
|
| |
| | Sanctum Celestial Sphere |
| | Luckily, at the twelfth order, blades still dent them. | | | The sphere seen is a twelfth-order emanation of a demi-perfect shadow of one of the Postulate Hyperia. |
|
http://sanctum.nioga.net/cards/cardp.html?sid=324
(34 words)
|
|
|
