derotation support for alt-az mount

Questions and feedback about the rotator itself, adapters, de-rotation etc
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photon08
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Joined: Thu Apr 01, 2021 12:53 am

derotation support for alt-az mount

Post by photon08 »

Hi,

Is the field derotation support for alt-az still work in progress? Or, is it now supported? I don't see anything about it in the stand-alone control software. If it's not there, how am I supposed to turn on the field derotation ?

Thank you
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Evans
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Re: derotation support for alt-az mount

Post by Evans »

You have to click the arrow at the bottom right to expand the window for the derotation calculation functionality
falconderot.png
falconderot.png (93.08 KiB) Viewed 3578 times
photon08
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Joined: Thu Apr 01, 2021 12:53 am

Re: derotation support for alt-az mount

Post by photon08 »

Thanks a lot !
metro23
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Joined: Wed Mar 24, 2021 11:08 am

Re: derotation support for alt-az mount

Post by metro23 »

Hi,
I use KStars on a PI4 and Stellarmate (Linux, INDI).
I want to use the Falcon Rotator for Derotaion.
After the latest Updates there is still only one field to add a value in milliseconds for Derotation.
How do I calculate this Value ?
I hoped there would be a more comfortable way for this task meanwhile.

Best Regards,
Alexander
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Evans
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Re: derotation support for alt-az mount

Post by Evans »

Derotation feature for the indilib driver is not supported yet.
We are working to have it ready soon.
The calcualtion of the "rate of rotation" requires communication with your mount so it is hard to calculate this value by yourself.
Hopefully we'll have it ready soon.
metro23
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Re: derotation support for alt-az mount

Post by metro23 »

Evans wrote: Sat May 01, 2021 11:44 am Derotation feature for the indilib driver is not supported yet.
We are working to have it ready soon.
The calcualtion of the "rate of rotation" requires communication with your mount so it is hard to calculate this value by yourself.
Hopefully we'll have it ready soon.
Hi again,
any news about the derotaion support ?

Best Regards,
Alex
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Evans
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Re: derotation support for alt-az mount

Post by Evans »

Derotation is fully supported in Windows.
Please check some photos from one for one of our customers who uses the Falcon Rotator with derotation on a Dob 24''.
https://www.astrobin.com/users/filiscoop/

Unfortunatelly Indilib does not have derotation support yet. We are working on that but it will take a couple of months.
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pedramardakani
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Joined: Sat Sep 11, 2021 6:02 am

Re: derotation support for alt-az mount

Post by pedramardakani »

Hi Evan :)

I know that you have mentioned that derotation is still not implemented in INDI. I am fairly new to INDI and C++, but I am willing to help since I do need this feature too. So, I would appreciate if you could point me in the right direction :)

Cheers,
Pedram
astrobarn
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Joined: Sat Oct 16, 2021 4:29 am

Re: derotation support for alt-az mount

Post by astrobarn »

Joined just to say I would like this feature. I don't like having to use Windows just to get a core feature of the device. A Raspberry Pi is much more portable and efficient and I'm disappointed this hasn't been prioritised.
metro23
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Re: derotation support for alt-az mount

Post by metro23 »

astrobarn wrote: Sat Oct 16, 2021 4:31 am I'm disappointed this hasn't been prioritised.
I agree :evil:
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