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Mount Accessories

Updating the Sirius Dovetail Base

Dec 10 2009 09:14 AM | dsnay in Mount Accessories

First let's see what the new dovetail looks like and compare it to the original. Figure 2 shows the original Vixen dovetail as shipped from Orion and Figure 3 shows Anthony's upgrade

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Malco Precison Adapter Plate for AP Mounts

Apr 01 2006 01:51 AM | astrorph in Mount Accessories

Malco Precision Products 360 degree Rotating Pier Plate Adapter for AP 900 and 1200 mounts.

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Advanced Telescope Systems Portable Pier

Feb 08 2006 01:14 AM | Guest in Mount Accessories

There is also now a choice of interchangeable hard rubber or aluminum foot pads. I chose the rubber pads, which are radiused to provide good grip over a range of leg angles.

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Jun 22 2005 02:47 AM | Shadowalker in Mount Accessories

Adding GOTO to an EQ Mount can be a fun project... The problem was I was spending more time hunting deep space objects than actually looking at them. So I’d get my new Sky & Telescope magazine, read about the DSOs that were visible and not

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JMI AC-Powered Right Ascension Drive Motor

Mar 22 2005 12:34 PM | Guest in Mount Accessories

Every astronomy beginner quickly learns that one advantage of an equatorial mount is that the observer can use a drive system to keep the object being viewed centered in the eyepiece. For most mounts this means either an AC or DC-powered Right Ascension drive motor or two motors, one for Right Ascension and one for Declination. DC-powered systems, whether single or dual-axis, include a hand controller and a battery pack with the former having control buttons to permit slewing at high speeds or stopping the drive completely. At the high end price-wise are computer-driven “Go To” systems that permit the user to enter a desired object after which the drive automatically locates the object (assuming proper mount alignment).

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Sky Commander vs. NGC-Max: A Digital Setting Circles Primer

Mar 12 2005 11:53 AM | Guest in Mount Accessories

DSC stands for Digital Setting Circle. It is a computer that connects to your telescope. It tells you what you are looking at, or where to move your telescope to look at a selected object. I have found that DSCs are invaluable for observing under Los Angeles skies. The light pollution here makes it impossible to star hop to most deep sky objects, such as galaxies, globular clusters, and open clusters. Indeed the light pollution makes it nearly impossible to find all but the brightest stars. Nevertheless, deep sky objects are accessible if you can just point your telescope in the right direction. DSCs allow me to point my telescope at these unseen objects and observe them.

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