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Highbeam Encyclopedia - Search Results for altazimuth altazimuth coordinate system ALTAZIMUTH COORDINATE SYSTEM [altazimuth coordinate system] or horizon coordinate system, astronomical coordinate system in which the position of a body on the celestial sphere is described relative to an observer's celestial horizon and zenith. It is the angular distance of a body measured westward along the celestial horizon from the observer's south point. In the altazimuth coordinate system the altitude of a body is measured along its vertical circle. www.encyclopedia.com /SearchResults.aspx?Q=altazimuth   (499 words)

altazimuth mounting To track an object across the sky with such an arrangement demands that the telescope move simultaneously around two axes –; a complication that, in the past, led to an overwhelming preference for equatorial mountings. Drawbacks, in addition to dual-axis tracking, are that the tracking rate varies with position in the sky and that the field of view rotates, which, though not a problem for point sources such as stars, must be addressed for any extended source by either rotating the instrument or by de-rotating the image. A popular version of altazimuth mount used widely by amateur astronomers is the Dobsonian. www.daviddarling.info /encyclopedia/A/altazimuth_mounting.html   (307 words)

Telescope Mounts and Tripods - Orion Telecopes & Binoculars   (Site not responding. Last check: 2007-11-05) Some altazimuth mounts are equipped with slow-motion controls, which allow fine adjustment of the telescope's aim to help zero in on target objects. One new version of altazimuth mount used widely by amateur astronomers is called the Dobsonian mount. Invented by San Francisco telescope-maker John Dobson in the 1970s, this boxy mount is constructed of wood and sits low to the ground. www.telescope.com /sdx/H3191.jsp   (323 words)

Celestron -- Telescope Basics Certain altazimuth mounts are now computer driven and allow a telescope to track the sky accurately enough for visual use but not for long exposure photography. If you are observing them using an altazimuth mount, they will quickly float out of view in both axes. A telescope on an equatorial mount can be aimed at a celestial object and easily guided either by manual slow-motion controls or by an electric clock drive to follow the object easily across the sky and keep it in the view of the telescope. www.celestron.com /tb-mtrms.htm   (854 words)

Telescope Mounts: Altazimuth, Equatorial, Dobsonian Altazimuth mounts are commonly found on refractor telescopes and some compound telescopes. The advantage of altazimuth mounts is that they are relatively inexpensive. The disadvantage is that they are not suitable for tracking the movement of objects across the night sky. www.go-astronomy.com /telescopes/telescope-mounts.htm   (387 words)

P3001 Altazimuth   (Site not responding. Last check: 2007-11-05) The altazimuth system is the simplest celestial coordinate system to understand. Azimuth is an angle from 0 to 360 degrees, with 0 being north, 90 east 225 southwest and so on. Altitude (sometimes referred to as elevation) is an angle from 0 degrees (for an object just at the horizon) to 90 degrees (for an object directly overhead, which is called the zenith). www.mta.ca /~rhawkes/courses/3001/altazimuth.html   (63 words)

Bill Keel's Telescope Life List - Bolshoi Teleskop Azimultanyi The first really large optical telescope to incorporate an altazimuth mount (and thus requiring constant computer control to operate), it is located on the slopes of Mount Pastukhov on the northern side of the Caucasus range, between the Black and Caspian Seas. The BTA itself is an altazimuth reflector whose Ritchey- Chretien optics have a primary focal ratio of f/4. An outstanding characteristic of the BTA is its altazimuth mounting (as on a theodolite), allowing it to point at any desired area of the sky, pivoting about vertical and horizontal axes. www.astr.ua.edu /keel/telescopes/bta.html   (3860 words)

Become.com - Shop results for altazimuth Celestron's #93607 tripod is a heavy-duty, altazimuth stand for binoculars and spotting scopes. New Icarus-D Altazimuth Mount with Wood Legs Quality altitude-azimuth mount with flexible slow-motion controls and locks on both axes. Meade - TeleStar AZ-S 60mm Altazimuth Refractor Telescope www.become.com /shop?q=altazimuth   (310 words)

RadioIntel.com - THE WOODEN ALTAZIMUTH "HOOP LOOP" After drilling the holes and inserting the screws to test the ease of angling, I then removed the screws and began the tedious work of affixing the wire to the outside surface of the inner hoop. In short, the Altazimuth Hoop-Loop project has been WELL worth the effort, and only cost $3 since I had everything else in the junk boxes. Whatever the name, this is a very worthy passive, altazimuth round loop, which covers the whole MW band and affords the user with excellent nulling and directionality. www.radiointel.com /anthooploop.htm   (1734 words)

Review of the Altazimuth Telescope Mount There are various types of Altazimuth mounts that you can use for your telescope and there really is nothing standard. The basic Altazimuth mounts have stepper motors that you attach both to the azimuth and elevation controls. Another factor in which Altazimuth you use is what use you are making of your telescope. www.best-telescope-guide.com /altazimuth-telescope-mount.html   (298 words)

Telescopes: Meade Telescopes, Meade, Mead, Meade ETX, Mead ETX, Autostar, Autostar Suite, The Planets, Stars, ...   (Site not responding. Last check: 2007-11-05) With the telescope placed in the altazimuth mode on a table, astronomical object-tracking may be accomplished automatically, after a quick and easy 2-minute alignment of Autostar to the sky. Alternately, the telescope may be mounted in either the altazimuth or equatorial modes on the standard-equipment #884 Deluxe Field Tripod. The #884 Deluxe Field Tripod is included for rigid mounting of the telescope during standing or seated observing in either the altazimuth or equatorial mode. www.meade.com /catalog/etx/etx_mak.html   (2660 words)

Telescope Mountings and Tripods As it is not possible to screw the mounting bolt on top of a pier into the base of LX200/GPS telescopes, this simple and robust adaptor barrel will enable you to mount the instrument on top of the Owl's Nest and still screw a fixing bolt into the base of the telescope. The AZTech is an altazimuth mounting system with worm and gear hand-operated slow motions on both the azimuth and altitude axis. The altazimuth and altitude bearings are made from solid stainless steel - the piston-fit altazimuth bearing is smooth precision engineering at its best. www.astro-engineering.com /Mountings/telescopemountin.html   (2019 words)

altazimuth telescope Comparison Table   (Site not responding. Last check: 2007-11-05) A project of five universities in US and Germany; 91 spherical mirrors with combined focus for spectroscopy altazimuth fixed in altitude but rotates in azimuth altazimuth "two-shooter" with telescopes 14.4 m apart (center to center) www.site.uottawa.ca:4321 /astronomy/altazimuthtelescope_table.html   (675 words)

Telescope mounts - Altazimuth - Night Sky Gazing   (Site not responding. Last check: 2007-11-05) The major disadvantage of the Altazimuth mount is that both axes of motion need to be constantly adjusted to follow astronomical objects. Objects in the night sky move in diurnal motion, which means that their apparent motion is caused by the rotation of the Earth around its axis. This means that astronomical objects move at an angle to the horizon, and the simple up/down/side to side movement of the Altazimuth mount must be constantly adjusted to keep the object in the field of view. www.nightskygazing.net /telescope_mounts.html   (434 words)

Telescopes4kids.com - FAQ There are two major types of mounts for astronomical telescopes: Altazimuth and Equatorial. Altazimuth - The simplest type of mount with two motions, altitude (up and down/vertical) and azimuth (side to side/horizontal). A telescope on an equatorial mount can be aimed at a celestial object and easily guided either by manual slow-motion controls or by an electric motor drive to follow the object easily across the sky and keep it in view of the telescope. www.telescopes4kids.com /faq/5.html   (665 words)

Need help finding good altazimuth tripod for 10" + reflector - Astronomy.com Forums Although I realize most backyard observers like the EQ mount because it allows continuous, prolonged viewing of an interesting subject, I normally find myself frenetically searching for something new every fifteen or twenty minutes. Short of buying go-to electronics, something I'd like to avoid for purist reasons, it seems that a large altazimuth would be just the thing for the 10 inch scope. I think, now that you mention it, that a custom cradle for the OTA would be the best way to go. www.astronomy.com /ASY/CS/forums/267358/PrintPost.aspx   (428 words)

A Glossary for Telescope Buyers and Users A telescope on an altazimuth mounting must usually rotate around both axes simultaneously, to follow celestial objects across the sky as the Earth rotates. An ingenious modern altazimuth mounting, invented by San Francisco telescope maker John Dobson, which uses such slippery plastics as Dupont's "Teflon" to achieve very smooth bearing operation. A Dobson mounting is a particular type of specialized altazimuth fork mounting, made of specific materials. observers.org /beginner/glossary.html   (11783 words)

AllRefer.com - altazimuth coordinate system (Astronomy, General) - Encyclopedia   (Site not responding. Last check: 2007-11-05) AllRefer.com - altazimuth coordinate system (Astronomy, General) - Encyclopedia altazimuth coordinate system[altaz´umuth] Pronunciation Key or horizon coordinate system, astronomical coordinate system in which the position of a body on the celestial sphere is described relative to an observer's celestial horizon and zenith. The coordinates of a body in this system are its altitude and azimuth. reference.allrefer.com /encyclopedia/A/altazCoor.html   (238 words)

Orion Telescopes and Binoculars - Observer™ 70mm Altazimuth Refractor This altazimuth model can also be used for terrestrial viewing. By virtue of its altazimuth mount, this one works well for both daytime terrestrial viewing and nighttime astronomical use. We specially engineered the altazimuth mount to provide much greater stability than the standard “off the shelf” altaz mounts. www.telescope.com /sdx/84158.jsp   (560 words)

Company Seven | Celestron Premium 80mm Altazimuth Refractor Telescope For many years its similar predecessor (the "Firstscope 80") set the standard as a most desireable serious first telescope for those whose ambitions, or environment dictate an interest in the brighter deep sky objects, and the planets, moon, and Sun. With 131 times the light gathering power of the naked eye, the Premium 80 provides 78% brighter images than 60mm telescopes. Its easy-to-use altazimuth mount includes slow-motion controls in both axes vath flex cables allonong quick and eas 'pointing and tracking. www.company7.com /celestron/products/ref2.html   (354 words)

altazimuth coordinate system — FactMonster.com Because the earth rotates on its axis, the altitude and azimuth of a celestial body are constantly changing. horizon coordinate system - horizon coordinate system: see altazimuth coordinate system. azimuth - azimuth, in astronomy, one coordinate in the altazimuth coordinate system. www.factmonster.com /ce6/sci/A0803508.html   (187 words)

TelescopesOnly.com - Meade Jupiter Telescope 60AZ-M 60mm Altazimuth Refractor   (Site not responding. Last check: 2007-11-05) The Meade Jupiter Telescope 60AZ-M 60mm Altazimuth Refractor includes a 2-element achromatic objective lenses, precision ground and polished from crown and flint glass components, and yield sharp, round, pinpoint stellar images. The yoke-type altazimuth (altitude-azimuth) mount of the Model 230 permits smooth motion of the telescope along vertical and horizontal axes. The Meade Jupiter Telescope 60AZ-M 60mm Altazimuth Refractor comes with a full-length adjustable wooden tripod with accessory shelf 5 x 24mm viewfinder diagonal mirror 3 eyepieces: 25mm (28X), 12.5mm (56X) and 4mm (175X) 2x Barlow lens instructions. www.telescopesonly.com /telescopes/513950907.html   (106 words)

B&H Photo Video Pro Audio Page   (Site not responding. Last check: 2007-11-05) Swift 2.4"/700mm f/12 Refracting Telescope with Altazimuth Mount & Tripod Celestron Firstscope 60 AZ 2.4"/700mm f/12 Refractor Telescope with Altazimuth Mount & Tripod Konus Konustart-700 2.3"/700mm f/11.6 Refractor Telescope with Altazimuth Mount & Tripod www.bhphotovideo.com /links/3391.html   (674 words)

AllRefer.com - altazimuth mounting (Astronomy, General) - Encyclopedia   (Site not responding. Last check: 2007-11-05) AllRefer.com - altazimuth mounting (Astronomy, General) - Encyclopedia You are here : AllRefer.com > Reference > Encyclopedia > Astronomy, General > altazimuth mounting More articles from AllRefer Reference on altazimuth mounting reference.allrefer.com /encyclopedia/X/X-altazTel.html   (119 words)

StarTrak home page Altitude angle (number of degrees and minutes upwards from the horizontal) and Azimuth angle (direction in degrees and minutes from true North). Thus if your telescope has either RA/Dec or altazimuth setting circles, it's easy to point the telescope at the object of interest. suitable for both equatorial-mount telescopes and altazimuth mount telescopes (such as Dobsonians). www.startrak.co.uk   (741 words)

Altazimuth Orion Explorer 90 Altazimuth (213 x 90mm) Telescope Optical Design: Refractor, Optical Diameter: 70 mm, Focal Length: 700 mm, Mount Type: Altazimuth More Optical Design: Newtonians, Finderscope type: Optical, Focal Length: 1219 mm, Mount Type: Altazimuth More www.shopping.com /xGS-Altazimuth   (643 words)

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