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equatorial mount instructions

November 30, 2020

Find how you have to orient the mount. This is perfect, although I’m lazy and normally set up in my back yard. If you’re close to Melbourne, set the compass so it’s pointing to about 168°, which will point to true south, rather than magnetic south. If you’re not careful you can bend the bolts. That means it’s parallel with the axis that the Earth spins on, so we can compensate for that spin. We’re not done yet, as that only means it’s pointing somewhere on a line between the south horizon and the SCP. With the equatorial mount, once it’s set up for the Southern Hemisphere, you only need to adjust one axis. It was awesome. Common disasters in selecting telescope mounts. Grab your compass. If I had to do it again I’m sure I could, but I would want to have this blog handy as I would need to do it a few times before I could do it from memory. (That’s roughly 180° minus the Melbourne’s 12° magnetic declination. Your email address will not be published. This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy. Adjust the height of the polar axis so it’s pointing directly at the SCP. In fact, my iPhone’s compass says it can point to true south, if I can trust it. 5 Tips to use an Telescope with an Equatorial Mount (the easy version) 1) Keep you mount setup as simple as possible at first.. Look at telescope instructions for equatorial mounts and you’ll... 2) Set the latitude scale to your latitude and aim the polar axis so it points north. I had no problems following all steps without any help or hints. With the alt-az, you need to adjust both axes to keep a star in view, and even then, the view rotates slowly. From now on, unless you’re taking your telescope a long way away from home, you can leave the altitude set. There’s a park near my place with an oval. Bill is Optics Central’s expert on astrophotography, telescopes and bird watching. Before we do that though, figure out where you want your telescope to stand. If you’re into photography, take it from me, getting it to within 1 arc second (1/3600°) is a whole new level of hell. If you can, though, it’s a bit easier and you can adjust the mount more accurately. To adjust the altitude, use the two bolts I’ve marked in the photo two above. Once you’re set up, don’t move the equatorial mount. If you to the object to be viewed, retighten the mount… Save my name, email, and website in this browser for the next time I comment. Step 4 – Finding the North Star Page 15 ….. Try to visualise where the target is in relation to the pole, and this will give you an idea of where the right ascension should point (the counterweight should point at a right angle to the right ascension). OK, so we’ve got our scope and an equatorial mount. A more accurate, if fiddly, way of doing it is to (again) use your phone. Of course, how accurately the scope is polar aligned will determine how often you need to adjust the declination axis. This might sound silly, but you don’t want trees blocking your target. This is accurate enough, assuming you’ve got your mount nice and level. If you’re not in Melbourne, Google the declination for where you are, or ask me.) Thank you again. A lot of scopes have a bubble level built in, which is helpful, but I find they’re not always all that accurate. If you don’t have an old-school compass, your smartphone will probably have a compass app. The first step is to get this pointing due south – that is, to a point directly above the south point on the horizon. Step 2 – Facing the Telescope North Page 13 ….. You can find out what their co-ordinates are at any given time, and zero in using those. If you follow the procedure I’m about to describe, you’ll get to within a couple of degrees. Take care not to rotate the mount where you’re levelling it. I had to tear the whole thing down just so I could move the tripod. Once you’re done, if you’ve got a mate who’s using an alt-azimuth mount, try not to look too smug as you listen to her swearing while she gropes around in the dark trying to find the right one of two adjusters. There are two ways of setting this angle on your equatorial mount. Step 5 – Setting the Declination Dial to 90 degrees Page 16 ….. Copyright © 2020 . Don’t worry about how high it is pointing, we’ll organise that later. 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In this blog I’m going to assume you can’t do any of this. Good luck with your equatorial mount. I’m just beginning my astronomical gazing with an EQ mount. Don’t try to align an equatorial mount during the night, before sunset is way easier if you can. However, I did need Bill’s help to hold his phone (with the declinometer app) on top of the mount while I adjusted the altitude bolts. Loosen the azimuth adjustment knob and rotate the moving the telescope about the mount’s R.A. and Dec. entire equatorial mount left-to-right so the telescope axes. This is especially useful for comets, because comets move. From the side, it should now look like the picture below (south is to the right in this side-on picture). Come in for advice on how to get the best out of your current telescope, what your next telescope should be, how to take photos of the sky, or even how to see some rare birds. That was so very cool. That is, you have to set the equatorial mount’s altitude to match your latitude. telescopes » How to set up an equatorial mount. Mind you I have never set up a telescope before. Most of the stuff you’ll find on equatorial mounts is written for the Northern Hemisphere, and talks about the Pole Star. It’s important to make sure you’re not forcing the bolts together – remember to back one off when loosening the other. The easiest way of setting this is to use the altitude scale, which is on the mount itself. Now, rotate the equatorial mount so the polar axis is pointing due south. Now, move left or right so you can look right over the compass, and due south at your tripod, like in this photo. Here’s a list of latitudes for major capital cities in Australia (remember that all these latitudes are south): (if you’re not in any of these places, you can Google your latitude. No worries Brian, I’m glad you found it useful. I look specifically at how to set up an equatorial mount and align it for the Southern Hemisphere. Note: a lot of mounts can detach from the tripod, and finely adjust left and right. Obviously, winding them one way will point the polar axis higher, the other way will lower it. The polar axis of your mount is the one that has to point at the SCP (in the side-on photo two below I’ve labelled it). This is fine for visual work. In a previous blog, I set out the two different types of mount, alt-azimuth and equatorial. Anyway, I got to go out for dinner as a reward for successfully setting up the mount. What’s more, the field doesn’t rotate at all. Lock the clutches and then use the adjustments to get closer to the target. Here are some ways to save time setting up your equatorial mount. That is, you can keep what you’re looking at in the field of vision while the Earth turns. Errrm, it’s complicated, and takes practice. If you are set up in the same spot, you can leave the leg lengths set so you don’t … In this part I’ll show you the steps to set up your equatorial mount well enough to get decent tracking for visual work. Do these things and you’re up and running in 5 minutes. This one is pointing at about 40°, which is probably as good as you can get at that level of accuracy. Love the new word ‘Astronomise’ and this make more sense than any previous I have seen. The Astronomical Society of South Australia has a nice easy web page that provides some more detail on polar alignment, including how to use Sigma Octantis. Then, hold the phone against a part of the head that’s parallel with the polar axis on your equatorial mount (see the photo below) to find its angle. As good as you can get at that level of accuracy my back yard is a! Can bend the bolts have to set up an equatorial mount and it... S expert on astrophotography, telescopes and bird watching use catalogue information to find that you need. 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Were other people there watching me use catalogue information to find that nearly-invisible comet, planet or supernova the part... Onto the equatorial mount, if I can trust it to keep Star... Just out of adjustment range it for the next time I comment on an close. Point to true south, if you to the Pole Star the photos, my iPhone also an! Pointing at about 40°, which is probably as good as you can leave the altitude..

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