Rob Lancaster replied to the topic 'Hardware recommendation needed for focuser' in the forum. 5 days ago

I would recommend Moonlite with the Moonlite high resolution stepper motors. I have two of them, one for each of the scopes I use for Imaging. I have only one controller box though and I switch it back and forth depending on which scope I am using. Both of my scopes they are on are Newtonians. The moonlite works like a dream in Ekos and I almost never have any problems with it.

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Rob Lancaster replied to the topic 'Can anybody recommend USB GPS dongle for RPi/StellarMate?' in the forum. 1 week ago

You only need to get the gps fix once for your observing location right?

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Rob Lancaster replied to the topic 'Can anybody recommend USB GPS dongle for RPi/StellarMate?' in the forum. 1 week ago

What about a cell phone running the NMEA app and the pi running the GPS NMEA driver?

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Rob Lancaster replied to the topic 'build directories for Ubuntu' in the forum. 1 week ago

In the Mac build we put everything into /usr/local if you build from home brew and into an app bundle for Mac apps. So if you build from source and specify the prefix, you too can put INDI and KStars in a custom location. Also in KStars, you can specify the paths to programs like INDI, xplanet, astrometry, etc if they are in custom locations. One issue might be firmware files because the drivers tend to look for them at specific paths and things like gphoto which expects its files to be at certain locations, but event these can be changed with environment variables.

Thanks,

Rob

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Rob Lancaster replied to the topic 'Combine telescope and camera in alignment module' in the forum. 2 weeks ago

ok, thats fine. Yes, it is possible to get the wrong combination. I will mention it to Jasem

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Rob Lancaster replied to the topic 'Combine telescope and camera in alignment module' in the forum. 2 weeks ago

Wouter,

Are we talking about the same screen here? You said "which puts quite a few other controls between the telescope drop down and the camera drop down" but looking at the screen I see this:



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Rob Lancaster replied to the topic 'Combine telescope and camera in alignment module' in the forum. 2 weeks ago

Wouter,

Are we talking about the same screen here? You said "which puts quite a few other controls between the telescope drop down and the camera drop down" but looking at the screen I see this:

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Rob Lancaster replied to the topic 'Combine telescope and camera in alignment module' in the forum. 2 weeks ago

I see two potentially large problems with this. Usually a guide scope and a main scope are pointed close to the same place in the sky and this is fine for guiding but for plate solving, switching back and forth could give unpredictable and unreliable results. Another and related issue is that some mounts use additional plate solves / alignment points to model other parameters such as mirror flop. I’m not sure how using two different scopes would affect this. I’m not saying these things are show stoppers or that it should not be done, but that first we should think them through

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Rob Lancaster replied to the topic 'Cooling down the ccd with delay' in the forum. 2 weeks ago

I have heard this argument before. I do not know whether it matters or not actually. I have been astro imaging with CCD's for 20 years or so and have not yet had a problem. That is not to say there will never be a problem or that anecdotal evidence should serve as evidence for something not being true. But I very frequently just turn off the cooler instead of setting a temperature and waiting for it to get there.

Anyway, you wouldn't really want to set a time to reach temperature, you would probably want to set a cooling rate or a stepwise cooling as mentioned by the last poster. For example, I don't think you would want to take the same time to cool from 40 degrees C to 0 degrees C as you would to cool from 10 degrees C to 0 degrees C.

It could certainly be implemented, but the question is in what manner to implement it and is it really needed.

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steve thanked Rob Lancaster in topic phd2 guider settings 2 weeks ago
Rob Lancaster replied to the topic 'phd2 guider settings' in the forum. 2 weeks ago

If you want to use PHD2 for guiding with Ekos, you can choose to have the camera connected to KStars and use it with INDI, or you can connect the guide camera directly to PHD2 if you prefer. In my opinion, connecting directly to PHD2 will give better results because it takes some of the network communications out of the way. You are correct that in the Ekos profile, you select PHD2 as the guide method. Selecting the camera is completely optional. In fact what I do is I have a profile set up in Kstars with no guide camera selected and PHD2 set as the guide method. PHD2 will still send all the guide information back to KStars regardless of whether its an INDI camera or not.

Probably before you start up INDI in Ekos, you should make sure that PHD2 is turned on and connected to the guide camera. Even better, if you already have a profile set up in PHD2 with your indi mount or st4 pulses through the camera selected, KStars will start it all up automatically. All you need to do at that point is hit guide after it connects. If you did not have PHD2 started up when you started INDI in KStars, that is fine too as long as you then click the connect button in the guide module.

I should note that as to the settings in PHD2, I have my camera set up as the guide camera, I am using the ST4 output as the guiding method, and I have set the "aux mount" to my INDI mount in KStars.

Thanks,

Rob

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