Field Rotation and Fork Mounts

Discussion of using SharpCap for Deep Sky Imaging
MunichAtNight
Posts: 15
Joined: Wed Apr 28, 2021 7:57 am

Re: Field Rotation and Fork Mounts

#11

Post by MunichAtNight »

Hi Robin
admin wrote: Sun Jul 03, 2022 1:21 pm Unfortunately, ASCOM does not provide a way for SharpCap to send the message to turn on/off the live derotation function to the Falcon driver, so that must be done in the Falcon window.
I thought like this! That's not a problem for me. It is great that you support directly the Pegasus rotator!

One additional thing I wanted to ask you. I had always a problem to install a camera without the Falcon as well now with Falcon rotator that the orientation of "UP" heading exactly to direction North! Using an AltAZ mount and now with the rotator there are endless possibilities to do it wrong! ;) I was wondering if Sharpcap can give to such a stupid user as am I a hint how much °- degrees, clockwise or counter-clockwise I have to turn the camera that in the end for example the long and upper edge of the camera sensor is exactly heading to North?

When thinking about this challenge, I had the idea that this should be a question of plate solving! Do you think you can add a functionality like it is now already realized in Sharpcap the menu item or button "Plate solve and centre!" with an additional button "Plate solve, centre and make direction North!"?

In case you need somebody for testing, I would be more than happy to help!

Servus - MunichAtNight - Ewald
User avatar
admin
Site Admin
Posts: 9437
Joined: Sat Feb 11, 2017 3:52 pm
Location: Vale of the White Horse, UK
Contact:

Re: Field Rotation and Fork Mounts

#12

Post by admin »

Hi Ewald,

I can see what you are getting at. RIght now though this should be fairly easy to do manually - just run a 'Plate Solve and Sync' or 'Plate Solve Only' command and when it completes successfully you will see in at the end of the notification bar something like

"Up is 27 degrees E of N"

That means that you either need to rotate by -27 or +27 degrees (depending on the orientation of the field rotator, diagonals/secondaries, etc being present or not). Test once and you will quickly work out which way to go and from then on it should be a very quick action.

cheers,

Robin
StarManFlorida
Posts: 4
Joined: Tue Jul 11, 2017 2:06 pm

Re: Field Rotation and Fork Mounts

#13

Post by StarManFlorida »

Does SharpCap support Optec's "Pyxis LE Rotator" ? I use the rotator on my Celestron Evolution mounting.
User avatar
admin
Site Admin
Posts: 9437
Joined: Sat Feb 11, 2017 3:52 pm
Location: Vale of the White Horse, UK
Contact:

Re: Field Rotation and Fork Mounts

#14

Post by admin »

Hi,

SharpCap should support any rotator that has an ASCOM driver (that's how SharpCap communicates with the rotator).

cheers,

Robin
Post Reply