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I've been using a Meade ETX 90 for a few years now. Since it doesn't have the new computerized mount (with goto), I am looking into buying one to swap out. Where might I find this and is there a more technical term than just "computerized mount" that is used?

Note: This is an old scope that did not originally come with the ports that the autostar controller now goes into (on the newer models).

Update: I ended up getting a newer Meade ETX and plan to replace my current mount with the computerized one. Also, if you check out cloudynights.com you might be able to find one. I have seen one on there before.

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  • $\begingroup$ Surely the ETX90 had a computerised mount from the start? $\endgroup$ – Dr Chuck Feb 3 '18 at 19:44
  • $\begingroup$ It’s an older scope. Like early 2000s. $\endgroup$ – Jack Moody Feb 3 '18 at 19:45
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Meade make the 497 auto star hand controller, which plugs in where your existing hand controller goes. This turns your mount into a fully computerised one. Alternatively you should be able to use a laptop to control the mount via the aux ports. It’s all in the manual.

If your telescope did not originally come with the auto star hand controller, here is a quote from weasner.com:

Q. How do I upgrade a non-AutoStar ETX to an AutoStar capable ETX?

Short answer: you can't. Meade does not offer an upgrade for the original model ETX (also known as the ETX-90RA or ETX Astro M). But you can mount the OTA on a different mount (see the Telescope Tech Tips page) or (if still available) get a JMI computer system (see the "NGC-microMAX/NGC-MAX" on the Accessory Reviews - Miscellaneous page). Or you could sell it and by a new AT model.

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  • $\begingroup$ Unfortunately, my scope is so old that the mount doesn't even have the ports that the star hand controller is supposed to plug into. I was wondering if Meade is actually known to sell this part of the scope individually. I was thinking about keeping the optical tube and replacing the actual mount that takes care of the slewing. $\endgroup$ – Jack Moody Feb 3 '18 at 20:03
  • $\begingroup$ Is the hand controller hardwired into the base? $\endgroup$ – Dr Chuck Feb 3 '18 at 21:09
  • $\begingroup$ Check out this site: weasner.com/etx/menu.html $\endgroup$ – Dr Chuck Feb 3 '18 at 21:13
  • $\begingroup$ This answered my question. I will update your answer with the relevant information. Thanks! $\endgroup$ – Jack Moody Feb 3 '18 at 21:15

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