I was getting oblong stars at any exposure length, and I thought it was the collimation. I just got an ASI290MM-mini camera, plugged it into the Stellarvue 80mm finder and started guiding. With the guider I got perfectly round stars at any exposure up to 5 minutes. I'm in a Bortle 8-9, so anything longer than that is saturated. I was amazed at how simple it was. I did encounter a problem calibrating, but I have an LX600, and it has a built-in autoguider which was fighting the internal guider. Duh. When I turned Starlock off, the guider took off and worked perfectly. I just wanted to say that it has made the biggest differrence of anything I've tried, and I think it completes my system.

Thanks to all who have worked on the autoguider!

Dave

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Thank you for the detailed answer.

I went out tonight and polar aligned using the legacy tool in Ekos, and it said my final was 54" out in azimuth and 12" out in altitude. Objects don't drift at all in the field of view, and I can make 3 minute exposures without having to throw half of them away. Now I have to figure out how to get everyone to turn off their lights. I have a Bortle 8-9 in my location.

Thanks again,
Dave

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David Allmon replied to the topic 'NGC 281 stacked' in the forum. 1 month ago

That turned out beautiful! Good job.

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Wow. Look at all of those stars. I don't think I've ever seen a single 10 minute exposure so perfect.

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David Allmon replied to the topic 'Wifi Issues' in the forum. 1 month ago

Hi,

I haven't tried 2.4GHz because of the interference pointed out by others, so I use the 5GHz WiFi built in the Pi4. It is around 50' with the Pi strapped to the fork arm of the telescope, and I've not had a dropped connection. There are at least 20 networks visible in this suburban location. The Pi case is plastic on the bottom, which may help. You might try 5GHz to test it, unless you have to run 2.4GHz.

Dave

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Hi,

I used the legacy polar alignment method in Ekos for the first time to align my LX600. It felt like everything went Ok. I have 24 seconds east and 39 seconds low on the readouts. But when I drift at the meridian and equator, the field drops probably 5 arcseconds every minute. I figured that could be one of two things - Ekos is not accurate enough or 24 seconds and 39 seconds are not as good as I thought they were. I've never measured the error before - I just drifted until I got it right. Any opinions are welcome!

Thanks,
Dave

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I run Astroberry server on the Pi and Kstars, etc on a Mac. It works perfectly.

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