Found inside – Page 147A Manual for the Astronomical Observer and Amateur Telescope Maker M. Barlow Pepin. Reassemble in reverse order. ... The standard Dobsonian mount is a lot like a piece of furniture, but with a difference – it lives outside. I bought this as a gift but it was never needed for that purpose, and so I was left with it. I have the iPhone adaptor shown in S@N and it holds the iPhone very steady with good adjustment screws to line it up with the EP. This book is the ultimate guide to buying and using commercial Dobsonians, both 'Econo' and 'Primo' models, with in-depth accounts for the various models (plus accessories) on the market and descriptions of the many innovations that ... Celestron ROWE-ACKERMANN Schmidt Astrograph Telescope. I have at long last moved into the 21st cent and bought myself a regular sized smartphone - it uses the android operating system for which there are many astro apps available. I made a minidob for a friend, and used 4" PVC pipe caps for the bearings. One of the most interesting to me at the moment is the virtual planerarium, "Skeye":-. That means that you can move it up and down or from the left to the right side. It is specially designed to ensure that you can adjust the telescope to find the desired celestial object. Build A Backyard Dobsonian Telescope . Read more. Some of the members have done great jobs making the $100.00 Grab N Go minidobs. It does render the finderscope useless for its intended purpose tho'!! Add to Basket. 10 watchers 10 watchers 10 watchers. I've had some great lunar results simply holding the iPhone over a larger plossl. If you are unable to find the instruction manual or addendum you need for your older Orion product by using our community search feature or browsing through our main product support categories, try finding the sku or name of your product on this list. Our main material for the mount is plywood (see Selecting Plywood for your Dobsonian).We will also use standard hardware, such as screws nuts and bolts, and you should consider using Rustproof Hardware for exposed items (screws, which will painted or sealed with the plywood after assembly is not nearly as critical to be rustproof). So you'd then "Sync" the phone's image of Vega into the bulls-eye by slightly moving the adapter on the ball head. Any object which goes into the bulls-eye makes a pop-up "balloon" appear which shows you a small image of the object in the bulls-eye and some details like Mag, RA/DEC or ALT/AZ. I found GoSkyWatch good as the app because it has a circular bulls-eye feature. Please contact me for an £300. Mount Diy Dobsonian Motorized . Whether in the field or on your own doorstep, set up is quick and easy - that is the simplicity of a Dobsonian mount. January 3, 2013 in DIY Astronomer. Skywatcher AZ-GTI Wi-fi Controlled Alt-Azimuth Mount BRAND NEW. Regular price. You might be able to lash that up to a spare finder bracket somehow. Jim, what are the dimensions of that mount? Bintel … I have currently devised a simple temporary mount system by clipping the smartphone on the following windscreen device http://www.amazon.co...57768423&sr=8-2 and by using much velcro attaching it to the dust cap of my Skywatcher 9 x 50 finderscope!! Similar … Mine were okay on my HTC Desire (old phone now) for about six months, it certainly showed the relevant part of the sky as you waved it over your head. The Orion XT4.5 telescope is perfect for a beginner. Orion SkyQuest XT Plus 6” Dobsonian Telescope. This type of mount gives you the ability to move the telescope up and down, or left and right along the azimuth axis. A Dobsonian is also more easily transportable than virtually any other instrument. In fact, a simple telescope version, widely know as Dobsonian, a reflector supported by a wooden altazimutal mount, is sufficient to allow nice visions of planets and deep sky objects. Omegon Mount Dobsonian Mini Base With Synta Dovetail. Has anyone tried the Arcturus labs adapter? Featured Products. Bintel BT152 6 Inch Dobsonian Telescope $ 549 Add to cart; Bintel BT202-B 8 Inch Dobsonian Telescope $ 799 SOLD OUT ; Bintel BT252-B 10 Inch Dobsonian Telescope $ 1,099 SOLD OUT ; Bintel BT302-B 12 Inch Dobsonian Telescope $ 1,399 SOLD OUT ; Bintel BT302-B 12 Inch Dobsonian Telescope $ 1,399. With a very sturdy and rigid mount design, shaking as well as miss-alignment while observing deep space is a minimal to non-existent problem. Dobson Skywatcher 200/1200mm Skyliner Flextube AT. The telescope is attached to the mount with a Vixen-style bar and can be removed if needed. Of course there are not only advantages but also disadvantages with this type of telescope mount design, as with as any other design. StarSense Explorer DX 102AZ Smartphone App-Enabled Refractor Telescope. If there is too much friction, the telescope is difficult to move to center an object in the field of view. About Diy Motorized Dobsonian Mount. Comes with 2 standard eyepieces, mobile phone mount and camera remote lead. The Dob Pod for Orion 4.5-10. The mount is the same as other 6″ Dob mounts. A tracking telescope mount used for astrophotography. It features a precision 8" (203mm) parabolic primary mirror, center-marked at the factory for precise collimation and mounted in a cast-aluminum support cell that provides maximum ventilation. Found inside – Page 247It is important that a telescope be attached to a sturdy mount, and that it is able to be moved without any difficulty ... Dobsonians are altazimuth mounts that are used almost exclusively for Newtonian reflectors of short focal length. Simple dobsonian mount for a 4.5 reflector - posted in ATM, Optics and DIY Forum: I saw a couple of links here with plans for larger-sized dobs or dob mounts, but I found a nice plan for creating a dobsonian base for a 4.5 OTA. And I also learnt quite a few names of things and what they actually looked like via the pop up pictures from the bullseye. The telescope consists of a concave (actually parabolic) objective (or Primary) mirror, which is … Sky-Watcher Classic 200P. Inteliscope Object Locator. Found inside – Page 37Dobsonian reflector In modern commercial telescopes , you'll usually find one of four types of mountings : camera tripods , altazimuth mounts , equatorial mounts , and Dobsonian mounts . Camera tripods are sometimes sold for use with ... Found inside – Page 174Dobsonians are altazimuth mounts that are used almost exclusively for Newtonian reflectors of short focal length. ... Dobsonians consist of a ground box with an azimuth bearing and another box that holds the telescope tube. Feb issue S & T should be in the shops now/soon. About Motorized Mount Diy Dobsonian Found inside – Page 143Did You Know? A special altazimuth mount used on large reflectors is the Dobsonian mount. This mount was popularised by the Californian amateur astronomer John Dobson in the 1960s. Dobsonian telescopes feature (continued) a simplified ... Found inside – Page 88The greatest innovation in the last twenty years has been the introduction of the Dobsonian mount , popularised by John Dobson of the San Francisco Sidewalk Astronomers . This simple yet sturdy alt - azimuth style used with a Newtonian ... If you have a 150 mm F8 mirror, a 200 mm OD tube is needed. i have tried most of the smartphone apps and everyway to attach them to my scopes I gave up in the end due to not being that accurate and when you switch the phone on to use ,it killed your night vision , the best app I now use is called whereisit it's a app that coverts ra/dec coords into alt/az in real time you program your location and then I use a compass and a wixey to get to where you want , you preserve your night vision and its as good as a goto, the best is it costs 63p from android apps . Dobson Skywatcher 200/1200mm Skyliner Flextube AT. . It doesn't look like it is still available for $50, btw. Add to Basket. Heres what I use, it can be used in the car, on a bike or even a telescope! Light pollution is a bit of an issue from my observing balcony - not to mention trying to dodge the clouds!! I gave this to my nephew, but I have some pics: It was not difficult. This is possible because of the Newtonian optic system of this telescope. ?. When mounted to a telescope it offers the opportunity to use the smartphone as a "push to" system - it seems to lend itself to dobsonians but I am interested in trialling the idea on my refractor and Mak. Community Forum Software by IP.BoardLicensed to: Cloudy Nights. TE KOOP! Mount Motorized Dobsonian Diy . Due to its weight and bulky nature it is rock-solid, so you won’t have any “stability” problems. a couple of cable ties around the whole thing at the start of each session and cut them off at the end. The Dobsonian mounted telescope is popular among amateur astronomers and telescope makers because of its simplicity. In its simplest form, the Dobsonian mount consists of a box which allows the optical tube assembly for pivoting in altitude, while the box itself is swiveled on a base in azimuth. Sign up for a new account in our community. It allows you to move the phone slightly to "sync" onto a star you can see nearby to your (invisible) object/target. (1) £699. Sale price. Night Astronomy Telescope Mounts. Bresser Telescopes and Accessories We supply the full range of Bresser Telecopes and accessories including the latest Bresser WiFi camera. Telescope Cell Phone Mount for Orion/Synta Finder Shoes #PMOS Holds Cell Phones. In its simplest form, the Dobsonian mount consists of a box which allows the optical tube assembly to pivot in altitude, while the box itself is swivelled on a base in azimuth. 10" Flextube SkyScan GoTo Collapsible Dobsonian (S11810) 10" Flextube SkyScan GoTo Collapsible Dobsonian (S11810) Sky-Watcher USA. It's easy! I did try the skyeye app as well until I found another app I simply liked better. Learn More. Found inside – Page 26Telescopes come with a variety of platforms enabling the observer to mount the telescope in a stable manner to observe ... refractors are fitted with this design and most reflectors are, too, the best example being the Dobsonian mount. The Dobsonian telescope or Dobson telescope is an altazimuth mounted Newtonian type reflecting telescope design made popular by John Dobson. BUILDING a DOBSONIAN TELESCOPE MOUNT: I have an Orion 203mm (8-inch) reflector telescope (f/4.9) that came as a package deal with the Sirius GoTo mount; However, I purchased an Orion ED80 80mm (f/7.5) refractor telescope to use with the GoTo mount for astrophotography; Instructables.com DA: 21 PA: 38 MOZ Rank: 61. DOBSONIAN TELESCOPE MOUNT & Altitude Bearings for SkyWatcher Flextube 10. Sides: Using the Stellarfane directions, I laid … 4.5 out of 5 stars. Dobson Skywatcher 250/1200mm. The Sky-Watcher VIRTUOSO GTi 150/750mm Reflector dobsonian is a fully automatic telescope ideal for beginners and those who want to get straight to observing. i have tried most of the smartphone apps and everyway to attach them to my scopes I gave up in the end due to not being that accurate and when you switch the phone on to use ,it killed your night vision , the best app I now use is called whereisit it's a app that coverts ra/dec coords into alt/az in real time you program your location and then I use a compass and a wixey to get to where you want , you preserve your night vision and its as good as a goto, the best is it costs 63p from android apps . Ah, I was searching for more general terms--I now see all the threads about the Meade 114. So when an opportunity arises I want to make the most of it!! The Dobsonian mount usually relies on the friction between the side bearings on the optical tube of the telescope and a frictional material on the saddle to hold the optical tube in place. Often referred to as ‘light buckets’... View full details. Dobsonian vs Newtonian. We use cookies on our site so you can place orders and to improve your experience. a short tie of some sort in case it becomes detached. The 8" Dobsonian Telescope combines powerful optics with the ultimate in mechanical simplicity and stability. Found inside – Page 97Example of a Dobsonian telescope . . The Alt-Azimuthal or Dobsonian Mount This system has one axis oriented in the vertical direction, normal to the plane of the horizon. In the horizontal plane is the azimuth circle with the ... Found inside – Page 132Strap mounts are used in big Dobsonian telescopes (primary mirror diameters ranging from 300 to 600 mm or more), while roller chains were used to support the primary mirrors in the multiple mirror telescope (MMT). for accuracy when the skies clear!! I do not have a woodshop. Articles on building a Dobsonian Telescope and Newtonian Optical Tube Assembly. Dobsonian telescopes use a specialised Dobsonian mount. $27.00. The Dobsonian mount usually relies on the friction between the side bearings on the optical tube of the telescope and a frictional material on the saddle to hold the optical tube in place. If there is too much friction, the telescope is difficult to move to center an object in the field of view. Ad posted 13 hours ago Save this ad This ad is Featured. Skywatcher S20550 Star Adventurer Ball Head Adapter Telescope Accessory Black. Found inside – Page 170bare - minimum telescope , save up and get a good 20mm or 25 - mm eyepiece ; it often makes a dramatic difference ... Beware of Dobsonian telescopes , which are Newtonians on alt - azimuth mounts ; they're a bargain for visual observing ... 09 480 5903. www.jacobsdigital.co.nz. There’s nothing like a big Dobsonian telescope for viewing the delights of the night sky. The mount is the main difference between a Newtonian telescope and a Dobsonian. This allows the telescope to be moved in any direction with very little effort. I use the goskywatch app on my ipad to make sure I am looking at what I think I am looking at (closer planets that resemble stars to naked eye). Which One’s Best. The telescope is small but powerful for its size, having 750mm focal length in a small 200mm tube. http://lavadip.com/3081_skeye__ideas_for_phone_mounts.html, basically, keep the phone / pda as far away from the OTA as possible. I am the proud owner of a 8'' Skywatcher Dobsonian and really happy with it so far but I have started wondering if there is a way to mount the telescope on a equatorial mount and if it would make sense to use that for astrophotography. This thread is archived. The 12" f/5 Dobsonian features a parabolic primary mirror, made of BK7 glass, to produce sharp and bright images at the eyepiece. If for some reason you just could not see the object, then invariably the app would show you stars which you could not see by eye but could see through the EP and so you could "sync" again on those stars and get even closer to whatever you wanted to see. Astrophotography is not possible with a Dobsonian telescope. $15.29 New. Found inside – Page 52... mount type of telescope mount in which one axis points to the zenith and allows rotation along the horizon and the other allows changes in altitude, or distance above the horizon; used for most small telescopes; a Dobsonian mount is ... Sort by. Planetary viewing through a Dobsonian, you may want a Barlow lens. So it’s safe to say that once you get her set up, make sure you choose a spot where you won’t move the thing too much. Dark Star Telescopes Dobsonian. It is assembled but is unused. For smartphones with curved surfaces, backplate pads are included. A Newtonian refers to the telescope optics, whereas a Dobsonian refers to Newtonian telescope with some specific features like an altazimuth mount and often thin mirrors. Tabletop Dobsonian Mount I figured if my nephew got into it - orion sells a 6" ota only pretty cheap. hide. I think GoSkyWatch cost me $10 back then). - Ditto for the phone cradle to the scope, e.g. - EUR 156,32. The … The mounting of a Dobsonian looks like that of a cannon whereas the Newtonian telescope has an equatorial mount, which is seated on a tripod. The construction of the box is really quite simple: it consists of only a few parts that are assembled rather like an Ikea flat pack. Dobsonian mounts are mounted on the ground by a heavy platform, and designed to support massively sized Newtonian Reflectors, while keeping a steady image. Get tips about dobsonian telescopes and dobsonian mounts at Telescopes.Lifetips.com. Part of the trial plan would be to attach the smartphone (with the Skeye app installed) to a scope mounted on my S/W GOTO mount and then conduct some experiments. Found inside – Page 39It had been touted as the first large telescope of practical design with a price within reach of the average amateur. Although cleanly finished, Odyssey 1's stubby tube and boxlike Dobsonian (altazimuth) mounting make it look more like ... Vendor. When I started out 5 years ago, I used a home made adaptor on a small plastic ball head which came from a $10 fleebay LCD screen. Found inside – Page 943.1.3 Digiscopy with a smartphone The smartphone is simply held by hand, or with the help of a mechanical adapter, ... Newtonian (and Dobsonian) telescopes, have their focal plane located close to, or inside, the eyepiece holder, ... Bresser Telescopes and Accessories We supply the full range of Bresser Telecopes and accessories including the latest Bresser WiFi camera. As with all dobsonian telescopes, the mount contributes a very large portion of the final weight. Not only does a GoTo telescope mount make locating objects in the night sky easier, but it also allows you to take long-exposure images (without star trailing). Found insideJohn Dobson designed this cheap and simple mount in the 1950s, enabling stargazers to save money on the mount and afford a bigger telescope! Dobsonian mounts usually house larger telescopes. Rather than using a sophisticated tracking ... There may be the magnetic effect of the scope to contend with but I am hoping to mount the smartphone not too close to the scope itself and this distance will form part of the trial.
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