95), a digital setting circle computer for your telescope. This book tells how you can build a state-of-the-art Dobsonian telescope using readily available. I just finished building my 20 inch F4 dobsonian equiped with Nexus digital setting circles The mirrors were purchased and I built the rest lots of hours but it was worth it. It works with most popular telescopes – on equatorial or Alt-Azimuth mounts. By connecting the DSCs to an appropriate software interface, one can get the pointing direction of the telescope…. There are a few disadvantages. For CdC, open the ASCOM Telescope Chooser, under Telescope Control Panel and select the Tangent-Compatible Digital Setting Circles driver then click on Properties The driver settings window will open. To learn more click here. rnabholz@yahoo. Telescope Making Links - Designs and Techniques. Mr Murrell will bring his 18-inch (46cm) Dobsonian telescope for campers to get a close-up of the meteors and will also point out many of the other features and constellations of the night sky. Digital Setting Circles & Drives. s, is a simple and efficient method of mounting a Newtonian reflector, based on the alt-azimuth principal. The brilliance and clarity of an image are governed by a diversity of technical and physical aspects of a telescope and by interdependent atmospheric conditions. orion dobsonian rocker box assembly complete,new in the box for 6” newt-----$100 jmi ngc max digital setting circle/12,000 object data base computer module--$250. If your telescope has digital setting circles and/or alt-az drive capabilities, the SkyStopper is compatible with them. It's based on dazs. First, aim the telescope tube (be careful not to move the mount or tripod legs) at a bright star of known right ascension near the celestial equator. I thought it was very confusing when I first tried to use manual setting circles. Making a mirror this large was so laborious that I didn’t look forward to having to also build a structure. & Dec axis, height adjustable tripod with center brace accessory tray. As in 10+ times your budget. They are particularly useful in areas of high light pollution. The 16" Dobsonian Refurbishment Project. The pivot bolt turns smoothly in the nylon bushing. 1) Orion XT8 (2nd Review) 8/14/14. A full Sky Commander digital setting circle system is installed (in this photo the dew shield is not installed). 10" Dobsonian Stargazing and Modification Blog and the base is turned until the setting circle is at 0 under the pointer. The Sky Commander has an extensive 16,000 object data base including NGC, Messier, UGC, IC, planets and 200 programmable objects. Wixey Digital Angle Gauge - An affordable and compact digital inclinometer $39. It also covers adding a digital inclinometer to the scopes. Digital Setting Circles & Drives I have fitted many sets of "Sky Commander Flash-4" DSC's. 9X means nine-tenths as big. NGC-microMAX (version 1. Better cameras have higher magnification. These are commonly added on to large Dobsonian telescope mounts to assist in locating deep sky objects and are sometimes referred to as "push-to" scopes. You can use your Dobsonian Telescope for astrophotography. 8/11/17: 7/23/17 14:00. Your telescope must be polar aligned and the R. You can use your Dobsonian Telescope for astrophotography. One interesting option is a sub-aperture solar filter and planetary mask. My dob has a setting circle and digital wixey. It's perfect for use with any DSC computer you'd care to use, whether it's the SkyCommander the NGC Max!. Many people believe that Obsession is - and has been for 2 decades - the premier Dobsonian telescope manufacturer in the world. Start going to dark sky sites. Displaying the measurement on an easy to read LCD display to a resolution of 0. Pricing HERE. Find an object fast with the Digital Setting Circles, then keep it centered with the tracking of the Platform. The accuracy of the alignment can be checked by rotating the telescope around on the RA axis. For pictures of the installation of the Servocat drive system on my 18" Obsession Dobsonian Telescope click here. even her relatively portable mirror box is a complete pain. eyepieces, Barlow, 2. Every step of construction is detailed in photographs and diagrams, and the underlying ideas are carefully explained. Digital Setting Circles and Accessories. The Celestron Astromaster 130EQ Reflector Telescope is covered by a 2-Year Manufacturer’s Warranty. About Celestron Celestron was founded by Tom Johnson whose first telescope design was a simple 6-inch reflector, built for his young son. Each kit contains a 3/8" or 1/2" x 2. This was not a major problem when using the scope visually but would make the use of digital setting circles impossible as DSC’s require orthogonal axis in the scope. The kit includes the NGC-MAX computer with encoders, gears and. com offer a variety of digital setting circles from manufacturers such as JMI, Televue, Sky Engineering & Takahashi. jhwarner August 03, 2018 00:58 1 comment 0 votes None. 95), a digital setting circle computer for your telescope. First, aim the telescope tube (be careful not to move the mount or tripod legs) at a bright star of known right ascension near the celestial equator. The success of any such system on a big Dobsonian telescope is dependent on the degree of care taken in the design, in particular the mechanics linking the motors to the scope and. Do you guys have any advice for an object computer (preferably with an option to save objects not in the database of the computer), encoders, or encoder. Also, there are numerous other design features that often make it hard to really nail down a single “best” dobsonian telescope for one price bracket. › setting circles for dobsonian telescope Sky Engineering, Inc. Meade Starfinder 12. Every step of construction is detailed in photographs and diagrams, and the underlying ideas are carefully explained. The nice thing about digital setting circles is that they can be added to just about any (quality) telescope as an afterthought. info where two potentiometers and a Raspberry Pi are used to measure Alt and Azimuth, convert to Ra and Dec using the sidereal python package, and interface with Stellarium. jhwarner August 03, 2018 00:58 1 comment 0 votes None. Digital setting circles have a mode for use with equatorial platforms that turn the clock off. • If you are doing outreach, you will minimize wait time for your guests. Night Sky Scopes 16", f/4. - 6" dobsonian telescopes $348aud - 8" dobsonian telescopes $445aud - 10" dobsonian telescopes $642aud - 12" dobsonian telescopes $1059aud - 5 pc filter wheel including 1. The Sky Commander has an extensive 16,000 object data base including NGC, Messier, UGC, IC, planets and 200 programmable objects. 5" Dobsonian There is no better value in the world of amatuer astronomy, period. If you have a budget of $500 or more, you may find something worthwhile then, OR adding a $300+ digital setting circles kit to an existing Dobsonian telescope. info where two potentiometers and a Raspberry Pi are used to measure Alt and Azimuth, convert to Ra and Dec using the sidereal python package, and interface with Stellarium. For me, the next step in the project is to get the digital setting circles code working on the Dob. My dob has a setting circle and digital wixey. rnabholz@yahoo. DSC – Digital Setting Circles with Sky Safari and Arduino Category: Astronomy — Tags: arduino , astronomy , digital setting circles , Dobsonian , dsc , sky safari – vincechan @ 1:57 pm OK, I’ve always been a visual observer, and have resisted jumping on the GOTO telescope bandwagon. Moore & Wright Mini Mag. The second member of our Monster Dob family is a 40" giant that offers almost 25% more light than it?s little 36" brother or four times the light gathering power of a 20" telescope. 7 lightweight Dobsonian, perfect for airline travel to dark-sky locations. The Mark I model was a set of digital setting circles that could be attached to a wide variety of Telescopes, but it was his Mark II system that marked a true turning point. To give an idea of what is possible, here are the specs for a 25. Cleaning telescope optics. Click to find the best Results for dobsonian Models for your 3D Printer. its special compact design keeps the size down and the views magnificent. Their use may differ from that described here for analog or dial-type setting circles. Start going to dark sky sites. Stellafane External Links provide links to related information on Amateur Telescope Making, Mirror Making, Optics, other Astronomy clubs and local area links to the Springfield, Vermont area. (Unused, but the Sirius line has a good reputation. A telescope with the right strength and features can offer an educational, breathtaking experience that brings together friends and family members to observe the universe around us. Digital Setting Circles & Drives. com about adding laminated degree circles. The tripod legs are made from steel and are adjustable to 1. One other thing they - and almost all other Dobs on the market - have had in common: you pushed the telescope to your observing target by hand. See more pictures of this scope here. Orion SkyQuest XT10 Classic Dobsonian Telescope product Welcome to Online Shopping For sale We are shopping online guide Orion SkyQuest XT10 Classic Dobsonian Telescope Are you looking to buy Orion SkyQuest XT10 Classic Dobsonian Telescope ? If you're considering to buy product online, why not take a look at our website. Find helpful customer reviews and review ratings for Orion XT10 Classic Dobsonian Telescope & Beginner Barlow Kit at Amazon. Sky-Watcher Telescope Sky-Watcher Telescope Sky-Watcher Telescope Thank you, from my heart, to support C-SKY telescope. But what exactly are digital setting circles? Read below to find out how our products work and why they're so useful in the field. 5 Obsession #282 with Nova primary mirror, Argo Navis digital setting circles, Servocat drive system, Kendrick dew heater system. Secondary Cage with the focuser, digital setting circles and Telrad As seen in the photo I mount a Telrad, an AstroSystems Phase-4 2″ crayford focuser and the electronics unit for the digital setting circles all in very convenient positions. However, with a laptop and the software that Orion ships with the telescope, and a cheap inclinometer (which you can get from Amazon for $20) it is not excessively difficult to devise a pretty good altitude-azimuth system with this telescope. After looking online I found a template which a 8" LB. Read honest and unbiased product reviews from our users. 10 year running thread on cloudynights. Optional digital setting circles and motion control are available at additional charge. Collimation cap. Second, it is a Dobsonian, which means that there is no equatorial mount to use with any of the great J2000. Both telescope axes ride on low-backlash Teflon/Nylon bearings, facilitating the location and tracking of celestial objects anywhere in the sky. See more pictures of this scope here. Hex files of the full code for UNO and Nano. The pivot bolt is drilled to accept the encoder shaft for your digital setting circles. Manual Setting Circle for Dobsonian Telescope: As a long time viewer of instructables. As the 10 inch has the same base as the 8". The overall weight was reduced by half. NightSky Scopes 16" Truss tube Dobsonian My 16” F4. Als used is an AstroSystems spider and secondary holder. jhwarner August 03, 2018 00:58 1 comment 0 votes None. The nice thing about digital setting circles is that they can be added to just about any (quality) telescope as an afterthought. As the 10 inch has the same base as the 8". 1) Orion XT8 (2nd Review) 8/14/14. HiI am a newcomer to AstronomyI have bough ta sw 200p dobby. The CG-4 Omni German Equatorial Mount and Tripod comes as supplied with all Omni XLT Series telescopes and includes RA and DEC slow motion controls and setting circles. Best of all, the Flash 4 uses the simple, time tested two star alignment. Meade Starfinder 12. Low prices and amazing service makes us #1. A transducer must be used to send the angular position of the axes of the telescope to a computer. A Dobsonian telescope is an alt-azimuth mounted newtonian telescope design popularized by the amateur astronomer John Dobson starting in the 1960s. A custom Orion Padded Case Set (sold separately) is available for the XX12g Dobsonian optical tube. 4 Telescope. All About Digital Setting Circles. Arduino Bluetooth Digital Setting Circles for Telescope Edit: Google Code has gone, latest source code is here. 10" Dobsonian Stargazing and Modification Blog and the base is turned until the setting circle is at 0 under the pointer. I designed my own digital setting circles because I didn’t want to pay the steep price for a commercial system, and also because I thought it’d be a fun project. The first thing I built was a leveling base with a setting circle for my AD10 dobsonian base. The Celestron Astromaster 130EQ Reflector Telescope is covered by a 2-Year Manufacturer’s Warranty. that if you want to use to Digital Setting Circle for your Dobsonian or fork mounted telescopes, the settings will need to be changed. If you have a budget of $500 or more, you may find something worthwhile then, OR adding a $300+ digital setting circles kit to an existing Dobsonian telescope. How do I use the setting circles on my Celestron German equatorial mount? July 1, 2009 When you look at your equatorially mounted telescope, you will notice dials on both axes of the scope. A setting circle is used to set the azimuth coordinates to help locate objects. Digital-Setting-Circles Digital Setting Circle for Telescope UPDATE: 12/30/17, For those not interested (or skilled in programming) I'm Posting. The Dobsonian Telescope, A Practical Manual for Building Large Aperture Telescopes tells how you can build a state-of-the-art Dobsonian telescope using readily available materials and supplies. When I built my planetary scope, I designed it to work with digital setting circles (DSCs) from the outset. The german equatorial mount is aligned to the pole and uses a series of gears and slow motion cables to track objects in right ascension and declination - as well as manual setting circles for locating objects. It is an 8" Dobsonian-mount reflector telescope, basically a 4 ft long empty tube with an 8" inside diameter and an 8" mirror at the bottom end. DCSs show you where to point your telescope to locate your astronomical target. A compass is used align the everything to true North and the base is turned until the setting circle is at 0 under the pointer. The pivot bolt turns smoothly in the nylon bushing. Fast and easy to set up, the Dobsonian mount consists of a box-type mounting which allows the telescope to pivot in altitude, while the box itself is rotated on a base in azimuth. DSCs are devices that attach to a telescope, and that helps to track the movement of the telescope. The success of any such system on a big Dobsonian telescope is dependent on the degree of care taken in the design, in particular the mechanics linking the motors to the scope and. Also includes the Argo Navis Digital Setting Circle controller for Telescopes. Installing the encoders required minimal effort and once we'd performed the simple set up routine we found we could locate a wide range of objects with ease. Buhl Science Center) purchased a 13-inch Dobsonian Reflector Telescope in the Autumn of 1985, to assist in public viewing of the 1985-1986. the GEM mount incorporates a counterweight system which allows the use of heavier telescopes and is greatly advantageous in the. Page 1 of 6 - $37 Dobsonian DSC for DIY makers - posted in ATM, Optics and DIY Forum: This project is an implementation of a simple Digital Setting Circles, that evolves from my previous DSC project, but now using an inexpensive optical encoder (and GT2 timing belt+gear) instead of the magnetometer. Re: Setting Circles for Dobsonian Before I ran across this thread, I found a reasonably cost effective solution to pointing my scope. 1200 mm focal length (f/6) Ideal for wide-field, deep-space observation; High-performance Teflon bearing system; Smooth vertical and horizontal manual movement. For almost ten years we've worked on making the best digital setting circles for all types of push-to telescopes. "Dobsonian Telescope Inventor Dies. Digital Setting Circles: Within the last few years telescopes with digital setting circles have become widely available. Dobsonian Telescope - wide range and great offers A Dobsonian telescope is an alt-azimut mounted Newtonian. & Dec axis, height adjustable tripod with center brace accessory tray. Peter Ward takes a look at three of the most popular models on the market. ) EZ Finder II Red Dot Reflex Sight. Do you guys have any advice for an object computer (preferably with an option to save objects not in the database of the computer), encoders, or encoder. Deep-sky observers especially appreciate Dobsonian telescopes. " Blog Post. The pivot bolt turns smoothly in the nylon bushing. At Obsession you get the best scope, the best GoTo drive, the best DSCs and even the best price!. Digital setting circles are the electronic equivalent to the right ascension and declination dials found on many telescope mounts. Once I have identified the object with coordinates from stellarium how do i align the tele. Looking through the finder it should. 9X means nine-tenths as big. Building a Digital Setting Circle using an Arduino Board Recently I completed a 14 inch Dobsonian project and I was pondering how to add a set of digital setting circles (DSC). Read honest and unbiased product reviews from our users. Useful for position feedback or manual interface, the encoder converts real-time shaft angle, speed, and direction into TTL-compatible quadrature outputs with or without index. The german equatorial mount is aligned to the pole and uses a series of gears and slow motion cables to track objects in right ascension and declination - as well as manual setting circles for locating objects. A compass is used align the everything to true North and the base is turned until the setting circle is at 0 under the pointer. Telescope Setting Circles Using Microsoft Visio 2007 by Shawn Kirchdorfer - 2009 For Alt-azimuth circles: This page will attempt to show how to use Microsoft Visio 2007 to create setting circles for a Dobsonian mounted telescope I have searched online and found a couple of examples where people have made programs in DOS or in JavaScript to print setting circles based on input from the user. Prices start at $5,800. Every step of construction is detailed in photographs and diagrams, and the underlying ideas are carefully explained. When people tell me they want a telescope, I assume it is for looking at the night sky. You get our 12,000+ object data. Digital Setting Circles Revisited. 5 Dobsonian - including the base! - for protection from dust and dirt Features a small cutout for the handle on the tube for easy transport of the telescope Case made of heavy-duty, Water and tear resistant polyester/nylon. By a very interesting thread you have here ----I made a digital azimuth circle like the one carbon showed but included the single. 5 Dobsonian - including the base! - for protection from dust and dirt Features a small cutout for the handle on the tube for easy transport of the telescope Case made of heavy-duty, Water and tear resistant polyester/nylon. rnabholz@yahoo. The Next Generation Computers (or MAX computers as they are sometimes called) are not "Go-To" computers in that they do not move the telescope for you. There are also commercial Digital Setting Circles, which are kits sold for telescope owners to adapt to their existing telescope, in order to give it "push to" features. Welcome to ProTelescope. The mounting then has to be adjusted so that the RA axis is aligned to the north and is elevated so that the telescope points towards Polaris. Telescope Making Links - Supplies and Components. Unlike go-to scopes, these “push-to” scopes don’t have motors, so they can’t move to the object on their own. Digital setting circles: The invention of microprocessor-based digital setting circles has allowed any altazimuth mounted. The Dobsonian telescope I'm using has a mirror 6" f/7 and my. New low cost digital setting circles: ESP-DSC. Agena AstroProducts - Shop for Quality Telescopes, Eyepieces, Adapters, and Accessories from your favorite astronomy brands. This ASCOM driver allows the use of a variety of commercial and homebrew passive encoder-based digital setting circles systems with any Windows software that supports the ASCOM standard. However, their cost, ($200-$400), and the amount of know-how needed to install them seemed to make them impractical for the type of telescope being considered. Sky-Watcher Telescope Sky-Watcher Telescope Sky-Watcher Telescope Thank you, from my heart, to support C-SKY telescope. Many commercial telescopes come equipped with digital setting circles, but commercial digital setting circles are expensive to add to telescopes that don’t already have them. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It works with most popular telescopes - on equatorial or Alt-Azimuth mounts. Here are a few links to discussions, similar approaches or resources for this type of system. Setting Circles. Digital Setting Circles and Accessories. Losmandy Digital Setting Circles are designed especially for those amateurs who would like to be able to locate and observe celestial objects fast and easily. The base is surrounded by velcro so that a pin can be placed anywhere around the base. This design should easily adapt to any dobsonian mounted telescope with some adjustments to sizes and positions. ($10 S&H) If ordered with (or after) ServoCAT: includes FREE Serial Programming cable for Argo Navis ($20 Value!) Call for pricing! *Based on exchange rate of 1. You need to understand that you are getting a 12-1/2 inch scope with great optics for only $800 brand new, with an eyepiece. I've come up with another solution, based on the utility image shown above. Optional digital setting circles and motion control are available at additional charge. Going to take it to the Mt Kobau star party to try it under dark skies!. What's a Digital Setting Circle? Back in the not too distant past, telescopes still had setting circles with engraved numbers on them that were used to find objects in the sky. The Arduino micro controller was the perfect choice to get something running quickly:. How do I use the setting circles on my Celestron German equatorial mount? July 1, 2009 When you look at your equatorially mounted telescope, you will notice dials on both axes of the scope. The ServoCAT-Argo Navis GoTo system has more features, the most rugged drive train on the market, the most powerful digital setting circles, and it happens to be the least expensive computerized large aperture Dobsonian telescope going. Uwe Glahn's 27" Dobsonian ScopeX, ATM in South Africa Berthold Hamburger: Telescope Making, Optics and Astronomy Eric Royer's 14 Inch binocular telescope Chris Forder's ultra portable 10" travelscope German ATM wiki, with software Jerry Oltion: a simple star-test telescope Rex Kindell's circle cutter (!!) The Alt-Az Initiative. On a good night I can find 20+ objects using the setting circles. Dobsonian telescope. Each set of cases includes a padded case for the top tube section including a secondary mirror cover, a padded case for the bottom tube section, and a roll-up case to safely hold the truss-pole assemblies. Digital Setting Circle / Drive Ready; Description. Almost nobody had a notebook in those days, so people resorted to wacky dodges like a program that would speak the coordinates of an object. If the ball becomes dirty or stained, discard it and get a fresh ball. Hardware Set #3 Orion, Hardin other scopes with spring tensioned altitude bearings. The success of any such system on a big Dobsonian telescope is dependent on the degree of care taken in the design, in particular the mechanics linking the motors to the scope and. This is used for measuring altitude (if you have a Dobsonian mount, this strip. Explore Scientific's 12-inch Truss Tube Dobsonian FROM THE January 2018 ISSUE This telescope offers top-notch construction and high-quality optics, and is easy to set up and use, as well. - Digital Setting Circles and motorization will eventually be an option or the user can motorize the telesope themselves, with care taken regarding carbon fiber. Attach one of these to the. Try out the AZ-EL Calculator -- Click Here. Plug it in and start observing those 29,000 objects! To order please send an email or phone. Dobsonian telescopes, a type of reflector model, are often referred to in astronomy circles as “light buckets. Arduino Telescope Setting Circles I have a telescope with a Dobsonian mount and need to create a simple digital setting circle to make it easy to work out where the telescope was pointing. I decided I wanted to add some digital setting circles (DSC) to my scope, but all the commercial solutions were $500+ and often had really crappy user interfaces. I know they differ from the orion. Dobsonian telescope - A Newtonian reflector telescope that sits in a special type of mount, called a Dobonsian mount. Digital setting circles is a blanket term that refers to any electronic mechanism that provides orientation feedback for a telescope as you move it around - the most basic version is a digital spirit level, like the Moore & Wright Mini Mag. If your setting circle is scratched or missing, grab one of these from a store you can trust! It is made 332142503050 MEADE TELESCOPE ALTITUDE Setting Circle Aluminum 4" Diameter 1/16" Thick - New! - $2. The Dobsonian Telescope, A Practical Manual for Building Large Aperture Telescopes tells how you can build a state-of-the-art Dobsonian telescope using readily available materials and supplies. The entire scope weighs just 22 lbs. Cloudy Nights My $12 Go-To Test Drive - More discussion and good information on various approaches. OZScopes is an Australian based company in Melbourne, Victoria with a mission to help you find the right telescopes, binoculars and optical instruments that you're looking to buy. This design is very popular for Amateurs who enjoy visual deep sky observing. The full upper tube assembly holds a Telrad and optical right-angle finder. Astronomical Coordiate Are Divided Into 2 Axis : Right Ascension (RA) And Declination. SpicaEyes Platforms from Tom Osypowski : Toms SpicaEyes Platform Drive Telescopes Large-apertureAluminum Telescope on an Integrated Aluminum Equatorial Platform. Encoders are attached to your telescope's axes and sense the scope's position as it is moved. info where two potentiometers and a Raspberry Pi are used to measure Alt and Azimuth, convert to Ra and Dec using the sidereal python package, and interface with Stellarium. Use high powers to enhance the view. Their use may differ from that described here for analog or dial-type setting circles. and Dec circles to align the telescope with heavenly objects above. 5 Newtonian reflector with digital setting circles Meade 10" Schmidt-Cassegrain ; equatorially mountable. The DSC contains user lists, planetary positions and deep sky object catalogs. It also covers adding a digital inclinometer to the scopes. There are several nice commercial offerings, but since I'd just build the Dobsonian from scratch I thought perhaps I could also build a DSC. Zhumell, GSO, Astro-tech, Apertura Digital Setting Circles - Sky Commander with all hardware and computer mount Rechargeable Batteries. Attach one of these to the. It is an 8" Dobsonian-mount reflector telescope, basically a 4 ft long empty tube with an 8" inside diameter and an 8" mirror at the bottom end. It takes about 20 minutes to set up and about 30 minutes to pack up. You can connect your Digital Setting Circles to your Netbook, operate your scope in "Push-To" mode, and watch the cross hairs on the planetarium screen move as you move your. See the Planetary DOB Review page for some details on how to do this. If your setting circle is scratched or missing, grab one of these from a store you can trust! It is made 332142503050 MEADE TELESCOPE ALTITUDE Setting Circle Aluminum 4" Diameter 1/16" Thick - New! - $2. The JMI Digital Setting Circle systems are our first choice even though many other companies offer similar systems, for a number of reasons including. The regular, or rechargeable 6 AA external batteries box, or a 9V internal battery can be used. Zuhmell Accessories. Digital Setting Circles on the Cheap. The pivot bolt is drilled to accept the encoder shaft for your digital setting circles. and sets up in minutes. Yes, I’m talking about an Orion XT10 Dob that I bought slightly used for $500 several months ago and yes it has a little computer – digital setting circles really – and no, I didn’t use the cpomputer. Start going to dark sky sites. Or you could use a PC. • If you are doing outreach, you will minimize wait time for your guests. The full upper tube assembly holds a Telrad and optical right-angle finder. DSC – Digital Setting Circles with Sky Safari and Arduino Category: Astronomy — Tags: arduino , astronomy , digital setting circles , Dobsonian , dsc , sky safari – vincechan @ 1:57 pm OK, I’ve always been a visual observer, and have resisted jumping on the GOTO telescope bandwagon. This design should easily adapt to any dobsonian mounted telescope with some adjustments to sizes and positions. Build Your Own. Setting circles enable you to locate celetial objects whose celestial co-ordinates have been determined from star charts. Attach one of these to the. Dobson's telescopes featured a simplified mechanical design that was easy to manufacture from readily available components to create a large, portable, low-cost telescope. A transducer must be used to send the angular position of the axes of the telescope to a computer. Buhl Science Center) purchased a 13-inch Dobsonian Reflector Telescope in the Autumn of 1985, to assist in public viewing of the 1985-1986. Best thing I ever did. The encoders send a signal to a hand held computing device,. The Arduino micro controller was the perfect choice to get something running quickly:. It is 80% more power efficient, and is only about 15% size of a traditional encoder. I have been an amature astronomer for several years now. Building a Digital Setting Circle using an Arduino Board Recently I completed a 14 inch Dobsonian project and I was pondering how to add a set of digital setting circles (DSC). It didn't take me long to get a classic case of aperture fever in the hobby. The IntelliScope™ system is an advanced form of digital setting circle providing a digital readout of position, with information about celestial objects in the database. Computerized, digital setting circles are now available on many commercial telescopes. Each optical tube assembly is mounted atop a German equatorial mount which includes, manual slow motion controls and setting circles in both R. 75" with centre brace/accessory tray and two counterweights - 7lbs and 4lbs. This design should easily adapt to any dobsonian mounted telescope with some adjustments to sizes and positions. This ASCOM driver allows the use of a variety of commercial and homebrew passive encoder-based digital setting circles systems with any Windows software that supports the ASCOM standard. For that you would need a correctly-aligned equatorial mount with setting circles, or a mount with digital encoders (you can get these for dobsonians) that when correctly configured can convert the telescopes position to a position on the celestial sphere. Complete with computer, 10,000 step encoders, custom made cables and truss telescope mounting hardware. I didn't want to spend hundreds of dollars on digital setting circles (which also require careful modification of the mount), so I started fiddling with. Use a compasses and do not forget to make a good mark at the circle center - you will need it! Because the GT2 timing belt have a 600mm perimeter, you should draw a circle with a 95,5mm radius (or 191mm diameter). Collimation cap. 5" brass bolt, bronze thrust bushing, stainless steel locknut assembly and full instructions. Your telescope must be polar aligned and the R. Hex files of the full code for UNO and Nano. Setting circles consist of two graduated discs attached to the equatorial mounts RA and DEC axis. › setting circles for dobsonian telescope Sky Engineering, Inc. Everything else has been updated, including encoders and digital setting circles. 9X means nine-tenths as big. Long story short, I own a really nice 12″ Dobsonian telescope, but I live in an area of high light pollution. When tracking at elevations close to 90°, the azimuth axis must rotate very quickly; if the altitude. 0 star catalogs. 8/11/17: 7/23/17 14:00. Since the late 1990s many innovations in mount design and electronics by amateur telescope makers and commercial manufacturers have allowed users to overcome some of the limitations of the Dobsonian style altazimuth mount. * Added Digital Setting Circles section. 5 Newtonian reflector with digital setting circles Meade 10" Schmidt-Cassegrain ; equatorially mountable. The current focal length is set up for Baader V bionviewer with corrector. It'll also teach you to navigate around the night sky without dealing with celestial coordinates, setting circles and equatorial mounts. DSCs are devices that attach to a telescope, and that helps to track the movement of the telescope. Arduino Bluetooth Digital Setting Circles for Telescope Edit: Google Code has gone, latest source code is here. 6 computerized Dobsonian Go to: Building a trilateral computerized 20 inch f/5 Dobsonian Go to: Project: five 12 inch lightweight Dobsonians Go to: Motorizing a 12 inch lightweight Dobsonian Go to: 20 inch telescope Go to: Equatorial platform Go to: Scotch mount Go to: Binocular mount Go to: Dobsonian tips. As we moved through the middle of the 20th Century, technological advances began coming faster and faster, and each advance set the stage for dawn of the Digital Age. The success of any such system on a big Dobsonian telescope is dependent on the degree of care taken in the design, in particular the mechanics linking the motors to the scope and. info where two potentiometers and a Raspberry Pi are used to measure Alt and Azimuth, convert to Ra and Dec using the sidereal python package, and interface with Stellarium. Digital Setting Circles & Drives I have fitted many sets of "Sky Commander Flash-4" DSC's. It also covers adding a digital inclinometer to the scopes. Only clouds and the Moon are more disappointing to amateur astronomers, then trying to find faint objects in light-polluted skies. sometimes its tiresome to find deepsky objects with those with a dobsonian non go to mount. Everything else has been updated, including encoders and digital setting circles. Deliver work you're incredibly proud of. I just finished building my 20 inch F4 dobsonian equiped with Nexus digital setting circles The mirrors were purchased and I built the rest lots of hours but it was worth it. You're always thinking you'll get your own scope one day, but one look at the saxon 150/1800 EQ3 Observatory Cassegrain Telescope may just change "one day" to today!. The first thing I built was a leveling base with a setting circle for my AD10 dobsonian base. com offer a variety of digital setting circles from manufacturers such as JMI, Televue, Sky Engineering & Takahashi. A Dobsonian telescope is an alt-azimuth mounted newtonian telescope design popularized by the amateur astronomer John Dobson starting in the 1960s. Every step of construction is detailed in photographs and diagrams, and the underlying ideas are carefully explained. The Arduino Duemilanove ("2009") is a microcontroller board based on the ATmega168 or ATmega328 (). Both telescope axes ride on low-backlash Teflon/Nylon bearings, facilitating the location and tracking of celestial objects anywhere in the sky. Digital Setting Circles Revisited. Hardware set #2 (side protrusions as with a Obsession) is shown below in Photo 2. by Larry Bogan Digital setting circles. The 16" Dobsonian Refurbishment Project. A custom Orion Padded Case Set (sold separately) is available for the XX12g Dobsonian optical tube. Dave is the owner of Obsession Telescopes. Uwe Glahn's 27" Dobsonian ScopeX, ATM in South Africa Berthold Hamburger: Telescope Making, Optics and Astronomy Eric Royer's 14 Inch binocular telescope Chris Forder's ultra portable 10" travelscope German ATM wiki, with software Jerry Oltion: a simple star-test telescope Rex Kindell's circle cutter (!!) The Alt-Az Initiative. Argo Navis is a "Digital Telescope Computer" by Wildcard Innovations. It has a finderscope and a Telrad. Digital Setting Circles for Dobsonian Telescope Aaron Turner built his own digital setting circles (DSCs) to add to his 12″ Dobsonian telescope after finding the commercial options were pricey and lacking in a good user interface.