equatorial mount setup

Make sure the tripod mount is even – this is important. Now adjust the angle of the polar axis. Mark the height of each leg once levelled. How to Choose a Good Binocular, 5 Easy Steps! There’s a simple explanation for why … The advantage of an equatorial mount is that it only needs to be rotated around one axis so as to maintain the target object in your field of view. As Earth rotates around this axis, the stars appear to move against the background sky over the course of the night, rising in the east and setting in the west. It will also appear in the view of a finderscope, providing this has already been aligned with the main scope. Ninian Boyle is an astronomy educator. But once you set up an equatorial mount the first time, you will know how to do it again, for as many times as you like. A basic deep-sky astrophotography setup using an equatorial telescope mount. Copyright © text 2020 by telescopefever.com. Equatorial mounts are much harder to use as they require the polar alignment to be perfect. Once you decide where you place the tripod within your property, mark the positions of the legs on the floor. If you ask me, my favourite is  CG-4 German Equatorial Mount and Tripod from Celestron. Take some stiff card and mark out a right-angled triangle that has one angle equal to your latitude. This triangle gives you a template that tells you how much adjustment you need to make to the polar axis to achieve polar alignment. Next, set up the tripod. Hold the triangle against the mount, with the longest side of the triangle aligned against the polar axis, with the spirit level placed on the shortest side. It may be easier to set up a camera-type altazimuth (altaz) mount, but an equatorial mount has the advantage of only needing to be rotated around one axis to keep your target object in the field of view, rather than two. You can do this during daylight by centring a distant object in your telescope’s eyepiece and checking whether it also lies behind the cross-wires of the finder. The simple steps set out below page tell you how, and most of them can be performed during the daytime in anticipation of a clear night’s observing. This ‘How to’ originally appeared in the January 2014 issue of BBC Sky at Night Magazine. It is important to choose the mount very carefully in order to capture the images of the celestial objects at their best. If you are accurately aligned, Polaris should travel in a small circle within the finderscope’s field of view. Select the corresponding equatorial mount model in ASIAIR’s equatorial setup with a baud rate of 9600. In order to follow this movement the telescope has to be moved slowly in the opposite direction to Earth’s rotation: in other words, following the stars. Also, there is a section that has the latitude setting for the North Star in certain areas. The Polaris or the North Pole lies within an angle of 1° of the rotational axis of the Earth. Save my name, email, and website in this browser for the next time I comment. Set up and level the tripod. So this is how to set up an Equatorial Mount. You can find the direction of the true north in your area on the Grid Magnetic Angle Calculator. That’s a lot of words … In case of Equatorial mounts, the telescope moves along the polar axis and is pointed in the direction of the Pole Star. Okay, now let’s set the mount in the direction of true north. Red light torch – Essential for your vision; protects your eyes against the dim light. Equatorial mounts can be a bit of a mystery if you’ve never used one before, but they don’t come much simpler than the EQ-1, which many small telescopes come with. You will need the following to get started. With an altaz mount, doing this requires you to adjust two axes, azimuth (left-right) and altitude (up-down). Newcomers to astronomy are quite often easily put off from equatorial mounts by being told they are complex to set up and use. In case of Altazimuth mounts, the telescope moves on the up-down and right-left axes, just like any photographic tripod. Once you are familiar with how to set up an EQ-1 in this way you should find it easy to get going and be able to maximise your time out under the night skies. When the top of the template is level, the mount is ready to use. Newcomers to astronomy are quite often easily put off from equatorial mounts by being told they are complex to set up and use. Install the mount head and roughly point the assembled mount northwards. An equatorial mount is made up of a tripod and a mount head, which holds the telescope and moves it about on two axes, one called right ascension (RA; east-west) and the other called declination (Dec.; north-south). equatorial mount, you’ll need to be able to do this. The basic process for capturing deep-sky images is this: 1. On the Equatorial mount, you only need to keep the polar axis parallel to the axis of rotation of the Earth, and there is no need to adjust it further. But the advantage is that equatorial mounts allow for a far more accurate tracking of celestial objects. You can check your position on the website iTouchmap.com. It’s useful to pick a single location as you can then mark the position of each leg on the floor after Step 4, making it speedier to set up in the future. Image processing is then needed to bring out the fine details in the object, and correct the levels (brightness) of the image. Make a right-angled triangle template from stiff card – this will be the tool you use to set the polar axis to the correct angle. The very first thing to do when assembling the mount is to ensure that it is perfectly level. Position the completed mount so that the polar axis (the one you’re going to tilt) roughly points north. . You will need to align to true north rather than magnetic north. There is a famous saying that “Your Telescope is only as good as your Mount” an we believe that. The north celestial pole lies within 1° of Earth’s rotational axis. CG-4 German Equatorial Mount and Tripod from Celestron. There’s a simple explanation for why this is the case.

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