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Topic: Telescope mount

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Newtonian telescope

	Telescope Mount
		Our telescope mount was designed in accordance to the IEEE standards as specified on their website [www.ieee.org].
		This keypad is used by the user to input the desired parameters for using the telescope mount.
		The telescope mount rotates the telescope right after the calculations of the star position are done.
	instruct1.cit.cornell.edu /courses/ee476/FinalProjects/s2007/iq23_tg67/iq23_tg67/index.html (3811 words)

	Meade Instruments Corporation - How Telescopes Work
		With the telescope's primary optics (objective lens, primary mirror, or a combination of lenses and mirrors) having formed an image at the telescope's focus, the purpose of the eyepiece (consisting of two or more small lenses mounted in a metal barrel) is to magnify this image.
		Equatorial Mountings: Although celestial objects are essentially fixed in their positions in the sky (on the celestial sphere, the imaginary spherical surface on which all astronomical objects are located), they appear to move in an arc across the sky, as the earth rotates underneath the sky once every 24 hours.
		Telescopes are said to be of high-resolution if they are manufactured to optical standards that permit a level of visible detail consistent with the aperture and optical design of the instrument.
	www.meade.com /support/telewrk.html (1750 words)

	Telescope mount - Wikipedia, the free encyclopedia (Site not responding. Last check: )
		In astronomy, the telescope mount is an important part of the overall design of an operational telescope.
		For Transit telescopes there is a special mount, whereby the telescope point always along the meridian, but its elevation can be varied.
		Another special fixed system is used on solar telescopes, where the telescope itself is fixed, but light comes in via two flat mirrors, one of which tracks sun on the sky.
	www.sciencedaily.com /encyclopedia/telescope_mount (359 words)

	Celestron -- Telescope Basics
		A telescope mount has two functions- (1) provide a system for smooth controlled movement to point and guide the instrument, and (2) support the telescope firmly so that you can view and photograph objects without having the image disturbed by movement.
		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.
		The wedge is mounted between the bottom of the fork mount and the tripod.
	www.celestron.com /tb-mtrms.htm (854 words)

	Wheelchair Accessible Telescope Mount
		We worked out a temporary solution that semester using a telescope on a tripod but the legs of the tripod are often in the way and putting a telescope on a tripod means that that scope has to be polar aligned every time you move it.
		This telescope is at the perfect height for all the kids who come to our open houses (and the lever-type knobs we installed on the doors allow you to open the door with an elbow while you are carrying a telescope).
		The telescope is so well aligned that something in the field of view in the 40mm or 20mm eyepiece stays in the field of view while you crank the telescope up or down.
	www.aoc.nrao.edu /~kdyer/accessiblemount (539 words)

	Seiler Instrument Manufacturing Division: Mount, Telescope: M71
		Mount, Telescope: M71 is used with Telescope, Elbow: M16A1F on Carriage, 155mm Gun: M1 for Cannon, 155mm Gun: M2 or M2A1 and with Telescope, Elbow: M16A1G on Carriage, 8 inch Howitzer: M1 For Cannon, 8 inch Howitzer: M2 or M2A1 for laying the gun in elevation.
		The telescope mount M71 is attached to the rear of the right gun trunnion, and moves with the gun.
		An instrument light clamp which is secured to the mounting bracket of the mount, holds the instrument light for illuminating the telescope reticle.
	www.seilerinst.com /mltry/m71mnttl.asp (168 words)

	Design Musings Mountings
		The English Yoke is a modification of the English Cross Axis where the asymmetrical mounting of the telescope on polar axis is replaced with a yoke, Figure 5.
		The polar axis of the German mount is mated to one half of a Yoke mount.
		Mounting the telescope mirror in a cell is necessary for mounting the mirror in the tube assembly.
	home.earthlink.net /~indig/DesignMusings/text/Design_Mountings.html (1907 words)

	Building an Equatorial Mount Reflector Telescope
		The flange was mounted onto the moving shaft by threading three M6 (6mm) bolts onto the inner diameter of the flange and mounting this on the shaft.
		Mount the counterweight (10kg in my case) on the dec axis and either adjust the weights (I used a combination of 2.5kg, 1.25kg and 0.75kg to get most weight combinations) or adjust the distance of the weights from the centre of the shaft to find a point of balance.
		I have chosen to mount the focussed at 90 degrees from the tube mount so that with the tube pointing at the celestial pole, the focusser would be on the side of the tube.
	www.geocities.com /ejjbee/Equatorial_mount.htm (6417 words)

	Computer controlled altazimuth telescope mount - Patent 4764881
		The mount is initially oriented by pointing the telescope at a reference location in the sky such as a known star and inputting its coordinates to a microprocessor-based control system.
		One well known type is referred to as an "equatorial mount" which includes a rotatable polar shaft, a stationary support for the polar shaft, a rotatable declination shaft which is secured to the telescope, and a member which is secured to the polar shaft and which rotatably supports the declination shaft.
		The mirror is removed from the telescope, and the bubble level, attached to a circular piece of wood of the same diameter as the telescope mirror, is substituted.
	www.freepatentsonline.com /4764881.html (5283 words)

	Heavy Duty telescope Mount
		The two telescope mounts and the wedge under the C-11 fork mount shown here were entirely fabricated from scrap steel rescued from the scrap iron dumpster at the truck dealership where I work.
		The height of the two mounts was determined by the fact that the 6-inch square pipe was already cut to the dimentions used.
		Originally, both mounts were built with turnbuckles to tention between the top of the pier and ends of the base legs to stabilize the pier.
	www.robertreeves.com /mount2.htm (905 words)

	Howstuffworks "How Telescopes Work"
		Telescopes must be supported by some type of stand, or mount -- otherwise you would have to hold it all of the time.
		To point the telescope at an object, you rotate it along the horizon (azimuth axis) to the object's horizontal position, and then tilt the telescope, along the altitude axis, to the object's vertical position.
		Although the alt-azimuth mount is simple and easy to use, it does not properly track the motion of the stars.
	www.howstuffworks.com /telescope5.htm (609 words)

	Woodware Designs -- Simple Equatorial Telescope Mount with Setting Circles -- Freebie
		The declination circle is in degrees and the wheel is attached to the telescope and the pointer to the pipe support.
		Telescope bases are usually painted white to make the easier to seen in the dark.
		All that is left is to reassemble the mount, relubricate the joints, and install the telescope.
	www.charm.net /~jriley/sky/mount1.html (2644 words)

	Specifications for Baton Rouge Observatory Telescope & Mount
		Equatorial fork mount for telescope to be constructed of precision machined aluminum and stainless steel alloys with axles of 6" O.D..
		The telescope optical axes will be aligned with the mount axes to within 1 arcminute and the combined system will be capable of tracking objects with an accuracy of less than 3 arc second periodic error without the need for computer correction.
		This compensation enables the telescope to be positioned on any object in the full sky to within ± 30 arcseconds RMS and to track the object over 20 minutes of time to less than 1 arcsecond of error.
	www.bro.lsu.edu /technical/telescopespec2.html (774 words)

	Telescope Mounts - an Astronomy Net Article
		The gimmick of this mount is the telescope is aligned along an axis that runs parallel to the earth's spin.
		GOTO telescopes can do all of this without equatorial mounts and polar alignment because the computer can be programmed to know the position of the scope by using guide stars.
		Equatorial telescopes can be crudely pushed and pulled into position, but if they are polar aligned you can use the manual setting circles to position your scope to get into the general area of where you are supposed to look.
	www.astronomy.net /articles/25 (2449 words)

	Telescope Mountings
		The kind of telescope illustrated in the diagram (of course, not to scale!) is a Schmidt-Cassegrain telescope on a fork mount.
		The telescope is rotated to point in different directions relative to a surface which is tilted to be at the same angle as the ground at the North Pole.
		Of course, with modern computer technology, alt-azimuth mountings for telescopes are making a comeback, since a computer can easily work out how to move a telescope both in altitude and azimuth to follow the same series of directions as an equatorially-mounted telescope would.
	www.hypermaths.org /quadibloc/science/opt03.htm (1074 words)

	Telescope Mount
		The telescope is situated atop the inner of two concentric towers attached to the Martin A. Pomerantz Observatory (MAPO) at the South Pole station (see Figure 1); the inner tower is mechanically isolated from the outer tower, so that no vibration can be transmitted from the building to the telescope.
		A room beneath the telescope, vibrationally isolated from the telescope, houses helium compressors, drive amplifiers, and an air handling unit for managing waste heat from the telescope and helium compressors.
		The DASI telescope (left) being lifted to the 35-ft tower attached to the MAPO building at the Amundsen-Scott South Pole Station 3 December 1999 and (right) operating at sunset March 2000.
	astro.uchicago.edu /dasi/iau/node3.html (344 words)

	SBI Telescope Mount
		In order to isolate the high frequency gondola jitter from the telescope we have developed a new mount equipped with a passive stabilizing system, which is basically composed of a spring, a mass, and a damper.
		The telescope itself is connected to the inner cage also by means of two flex-pivots that allow the telescope to rotate orthogonally to the elevation spin axis.
		The spring-mass oscillation is passively damped with eddy currents: copper conductors move between strong permanent magnets and the interaction between the electrons in the conductor and the external magnetic field generates a force in the direction opposite to the velocity of the conductor.
	sd-www.jhuapl.edu /SBI/Instrument/tel_mount.html (283 words)

	Telescope Mounts - Telescopes.com
		A telescope mount has two functions - (1) Provide a system for smooth controlled movement to point and guide the instrument, and (2) support the telescope firmly so that you can view and photograph objects without having the image disturbed by movement.
		A Dobsonian mount is mounted on the ground by a heavy platform.
		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.telescopes.com /telescopes/telescopemountsarticle.cfm (628 words)

	Telescope Mount
		Like the alt-az mount, the equatorial mount is made up of two perpendicular axis known as the right ascension (or polar) axis and the declination axis.
		The motorized Equatorial Mount is the preferred mount for astronomers wishing to view objects for long periods of time or capturing images using some type of camera system.
		In a fork mount, the telescope is mounted between two short tines which define the declination axis.
	www.mnastro.org /learning/telescope_mount.htm (749 words)

	DiscMounts: Why
		The desire to eliminate locks, and use a wide range of eyepieces (or cameras) without the telescope moving, and to have a rigid and smooth operating mount at high powers was the goal for a new Alt-Azimuth mount.
		All that is needed is to adjust the mount to accommodate for the telescope configuration, and forget it.
		This allows the telescope to be mounted to the altitude axis disc (with proper rings, etc.) and also allows the telescope to rotate on both axes 360 degrees (depending on tripod legs, etc.).
	www.discmounts.com /why.html (484 words)

	Telescope Mounts: More Than Just a Tripod
		A telescope mount has two functions - (1) Provide a system for smooth controlled movement to point and guide the instrument, and (2) support the telescope firmly so that you can view and photograph objects without having the image disturbed by movement.
		A Dobsonian mount is mounted on the ground by a heavy platform.
		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.
	telescopes.com /faq/Telescope-Mounts.html (685 words)

	MI Telescope Mount Features
		Telescope mounts are usually the most expensive part of a telescope system.
		However, the mount flexure would be large, the clutches would be inclined to slip, the drive motors would be over-loaded, and the stability of the instrument would be compromised.
		A mount is normally attached to a steel, aluminum, or cement pier.
	www.mathis-instruments.com /features.html (1708 words)

	Telescope Mounts
		Once configured the equatorial mounted telescope can be aimed with their setting circles using an astronomical coordinate system.
		The final joint, the one next to the optical tube assembly (OTA) is call declination and allows the telescope to move up and down the spinning celestrial globe to position the scope at the star's altitude.
		The newest GOTO telescopes can do all of this without equatorial mounts and polar alignment because the computer can be programmed to know the position of the scope by using guide stars.
	www.memphisastro.org /Mounts.html (2478 words)

	Webcam Autoguiding and mount tracking for amateur telescopes. Autoguiding Meade LXD55 LXD75 mounts with guidedog and ...
		By using a second telescope mounted on the same mount as the imaging scope - this is known as a guidescope.
		Mount guidescope on your telescope mount pointing in roughly the same direction as the imaging scope.
		As the mount tracks the sky, the degree of flexure between the parts causes some parts of the scope to move very slightly with respect to others.
	astro.neutral.org /articles/autoguiding/tracking_autoguiding.html (4621 words)

	Mount Manual
		Operating the telescope motions from the paddle is effectively an "open-loop" mode, since the software cannot anticipate the intended destination; such as it can if the intended coordinates are entered at the computer, and the telescope is moved to a new destination under software control.
		Always mount accessories to the optical tube assembly so that their centers of gravity are as close as possible to the plane described by the Dec and optical axes.
		After the telescope is close to balance, the remaining imbalance may not be sufficient to overcome static friction in the telescope bearings.
	www.beloit.edu /~physics/observatory/manuals/mount.html (6090 words)

	Three Axis Telescope Mount (Site not responding. Last check: )
		The Three Axes Mount is a cutting edge imaging concept, being completely free of the compromises that all other telescope mounts have including those found in the Altitude Azimuth (Alt Az) and the Equatorial (Eq).
		Unlike a Three Axes Mount, a statically polar aligned Equatorial lacks a method for removing the errors associated with polar misalignment (perfect alignment is impossible), mount and tube flexure or the mounts mechanical deficiencies without introducing field rotation.
		The Three Axis Mount synthesizes a celestial alignment that is easily modified during exposure, creating a method of tracking that refines orientation as time passes allowing continuous high precision tracking without mount or alignment induced field rotation for as long as the object is visible.
	www.c2optical.com /mount.htm (677 words)

	Telescope Mount Details
		The base of the mount is perhaps the most bulky part of the whole telescope because it cannot be collapsed further than this.
		Adjustable feet are used to level the mount while removable caster wheels enables the whole telescope to be moved as a unit when fully assembled.
		It was then mounted on a machined piece of angle iron with adjustments to square the drive-wheel onto the ring.
	www.saao.ac.za /~wpk/scope/mount.html (446 words)

	An Equatorial Mount for the Planetary Telescope (Site not responding. Last check: )
		To keep you telescope from moving about at the slightest touch or oscillating in the wind the mount must be massive and very strong.
		The telescope is 8’ (2438.4mm) long and focuser is 66” (1676.4mm) from the axis point of gravity along the tube assembly.
		Since this interfaces the tube to the mount it must be made to dampen out vibrations from both eternal and internal forces, and to provide a strong platform for the tube.
	www.tnni.net /~dustymars/misc/Equ_Mount.htm (3654 words)

	It takes more than one kind of telescope to see the light
		Although the first telescope was created 400 years ago, we didn't have a complete picture of the electromagnetic spectrum until the early part of this century.
		Radio telescopes also need to be large in order to overcome the radio noise, or "snow," that naturally occurs in radio receivers.
		Because specialized telescopes are so well developed and are still strongly supported by scientists, the most logical approach would be to coordinate the telescopes already in existence.
	science.nasa.gov /newhome/headlines/features/ast20apr99_1.htm (2687 words)

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