Topics

Mach2 - Orthogonality, modeling and tracking #Mach2GTO


Dominique Durand
 

On Mon, Aug 24, 2020 at 09:45 PM, uncarollo2 <chris1011@...> wrote:
Mirror flop?
Thanks Rolando,
And yes maybe, but it's C11HD with mirror blocking and normally it is blocked, but maybe not enough. With the AP130 I actually had less. On the other hand, I have not yet explained the difference in dispersion between East and West with the AP130.


Roland Christen
 

Mirror flop?

Rolando



-----Original Message-----
From: Dominique Durand via groups.io <dom33.durand@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 24, 2020 2:40 pm
Subject: [ap-gto] Mach2 - Orthogonality, modeling and tracking #Mach2GTO

Hi AP and Astronuts,
I continue my search for objects with my C11HD and my QHY294c and to improve the tracking, readjust the polar alignment and redo the modeling (91 successful / 92).
On a series of exposures on M2 (74 of 60 seconds) I noticed a drift only in DEC, 8 arcsec in 74 and I noticed on the model a marked orthogonality defect in DEC. I am therefore looking for ways to explain this defect.
Installing the C11 on the mount? fixing the camera? ... What in general causes this defect?
 Best Regards
Dominique


Dominique Durand
 

Hi AP and Astronuts,
I continue my search for objects with my C11HD and my QHY294c and to improve the tracking, readjust the polar alignment and redo the modeling (91 successful / 92).
On a series of exposures on M2 (74 of 60 seconds) I noticed a drift only in DEC, 8 arcsec in 74 and I noticed on the model a marked orthogonality defect in DEC. I am therefore looking for ways to explain this defect.
Installing the C11 on the mount? fixing the camera? ... What in general causes this defect?
 Best Regards
Dominique