It is possible to use a USB to serial adapter to allow newer laptops to communicate with the Temma mounts. Thanks for taking the time to post here for others. But this is not useful for long exposure imaging. I have rescinded the ACP ticket. Equatorial mounts do not need to be accurately polar-aligned although an accurate polar alignment will likely lead to a more satisfying observing experience. The primary differences between the Temma 2 models and the older Temma PC models are higher speed stepper motors and improved precision of the controller electronics.

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Richard Lawler’s Astronomical Images

Many laptops no longer include RSC serial ports. Average power consumption is under 1 Amp at 24V.

Just ” errors I would get saying the tracking was off” isn’t quite enough. JPG x KB.

Temma by Takahashi ASCOM Driver

In fact I also have a EM mount in my garden, for my kids and for my tests. Hi, Thank you for your answer. To connect, go to the Telescope Menu click Link then Establish and you should be connected. Thanks awcom taking the time to post here for others. Then you can use whichever driver suits your needs. Please contact Explore Scientific for more information.

I’d need to see the specific series of events and the error messages to make a more reliable guess. Real klugey if you ask me.


The system works in manual correct but when I try to put one target I click in slew and the system doesnt move it.

Make sure your mount is powered up before clicking connect and is in the Counterweight Down position, you will then get a dialog asking you to select a suitable star either East or West of the Meridian, loosen the mount clamps and centre the star temka click Sync, provided you are accurately Polar Aligned, that is it.

The Temja PC system relies on the polar alignment of the mount for goto accuracy. The Temma PC Jr.

The EM is an open-loop system meaning that it will lose goto sync once the clutches are released. Sure, the Pegasus software shipped with these mounts is a bit outdated, but the fact remains that advanced and professional astronomers around the world are still using them in preference to other mounts, which have come down with the last shower, so to speak.

Details on the revised Software Bisque Temma driver can be found here. The difference is probably due to some non-orthogonality of the optical tube.

The SynScan Hand Controller version must be 3. It should also work with TheSky6 and Awcom but not all functionality will be present.

Astrophotography Equipment

I have rescinded the ACP ticket. These mount are still the most reliable, sturdily constructed, and long-lasting mounts on the market!


Once I did that, it stayed on throughout. I bypassed that by connecting the scope with tracking control enabled, let it turn it off, then turned it back on, then disabled tracking control. TheSky Built-in Temma Driver: With a mount flip it was under 10 arc-min.

Next you will need the Telescope Driver, you can get that from here: While idle the mount could temmma into a hazardous position. This driver has been supplied by the manufacturer and has passed all conformance tests report here.

Thanks for your input.

This sound can best be described as something like a jet airplane noise but at far lower decibel levels. On our request, John has kindly provided us with the following technical information, which shows how to get the best out of these professional-standard mounts by using the correct type of software.

You are now connected to your Temma Mount and can control it via wireless control through SkySafari 6 Pro. Thread Tools Show Printable Version.