Date   

Re: Pointing Model for Unguided Imaging on a C11" EdgeHD (with primary mirror locked)

Bruce Donzanti
 

Bob

How did you make and install "solid mirror locks"?  Also, I assume you still built a pointing model- correct?



On Fri, Apr 2, 2021 at 3:57 PM Astrobob <imager1940@...> wrote:

I have a C14 at f5 mounted on an AP1200 and I have a Moonlite focuser. I’ve made my own solid mirror locks which allow no movement.

I can easily do 3 minute unguided images 90% of the time. I have done 5 and even 10 minute unguided Images but that’s pushing it.

 

Bob

 

Sent from Mail for Windows 10

 


Re: APPC Transfer Question #2

Dale Ghent
 

C:\ProgramData\Astro-Physics\APCC

or just the entirety of C:\ProgramData\Astro-Physics\ if you want both APCC and A-P ASCOM driver settings to be on the other PC.

On Apr 2, 2021, at 16:12, Wayne Hixson via groups.io <wayneh9026=yahoo.com@groups.io> wrote:

Now what files/directories should be moved to the new PC?


Re: Power Supply died due to heat (daytime sun) I believe. #Mach2GTO

Jeffc
 

Just noting…. From the Amazon page…. 

-IN-DOOR USE ONLY! 

Presumably it is in a case , or used in an observatory, etc.   I would be a bit concerned with dew when used “outside”.   Afaik the original “brick” is sealed (at least mostly sealed but probly not IP67 level sealed.)


On Apr 2, 2021, at 11:59 AM, Micheal Fields Jr via groups.io <mpfjr@...> wrote:

Hi Karen.  No problem.  I bought a really nice one that has a cooling fan.  I'd rather not simply replace a dead one with an identical one that will die on me later.    This is the item I ordered.  https://www.amazon.com/gp/product/B0146IAXYO  I intend to desolder the cables from the existing (dead) supply and re-use them with this item.   I use one very similar with my other 24v powered mount without issue.


APPC Transfer Question #2

Wayne Hixson
 

Now what files/directories should be moved to the new PC?


Re: Pointing Model for Unguided Imaging on a C11" EdgeHD (with primary mirror locked)

Astrobob
 

I have a C14 at f5 mounted on an AP1200 and I have a Moonlite focuser. I’ve made my own solid mirror locks which allow no movement.

I can easily do 3 minute unguided images 90% of the time. I have done 5 and even 10 minute unguided Images but that’s pushing it.

 

Bob

 

Sent from Mail for Windows 10

 


Re: Power Supply died due to heat (daytime sun) I believe. #Mach2GTO

Karen Christen
 

Thanks for following up, Michael.  Please let us know how we can support you in future.

Karen

AP

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Micheal Fields Jr via groups.io
Sent: Friday, April 2, 2021 1:59 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Power Supply died due to heat (daytime sun) I believe. #Mach2GTO

 

Hi Karen.  No problem.  I bought a really nice one that has a cooling fan.  I'd rather not simply replace a dead one with an identical one that will die on me later.    This is the item I ordered.  https://www.amazon.com/gp/product/B0146IAXYO  I intend to desolder the cables from the existing (dead) supply and re-use them with this item.   I use one very similar with my other 24v powered mount without issue.


--
Karen Christen
Astro-Physics


Re: Power Supply died due to heat (daytime sun) I believe. #Mach2GTO

Micheal Fields Jr
 

Hi Karen.  No problem.  I bought a really nice one that has a cooling fan.  I'd rather not simply replace a dead one with an identical one that will die on me later.    This is the item I ordered.  https://www.amazon.com/gp/product/B0146IAXYO  I intend to desolder the cables from the existing (dead) supply and re-use them with this item.   I use one very similar with my other 24v powered mount without issue.


Re: Pointing Model for Unguided Imaging on a C11" EdgeHD (with primary mirror locked)

Bruce Donzanti
 

Hi Brian

Gotcha- great images...... as  I dabble in my Bortle 6 below average seeing skies most of the year.  :-(

Thanks for the info.  The guiding is working ok and the PHD2 multi-star features seems to help a bit more.  I'm not sure trying a model will greatly help me.  Perhaps in the end, it is just another approach (easier in some ways and harder in others) to get the same results.   


Re: Pointing Model for Unguided Imaging on a C11" EdgeHD (with primary mirror locked)

 

Hi Bruce

we do only unguided on our 1600ae with CDK17 at ~3000mm focal length/ 0.63" image scale. For us the model is essential to do unguiding. 


We regularly do 300sec exposures unguided. Our planewave is a truss design, so i think there's a bit of movement in there that prevents us from exceptional results.

i think we are going to add Roland's 'bump guiding' technique as we are now upgrading to a bigger telescope

Even if we were guiding, i would still add the model to make tracking more accurate. 


Brian

On Fri, Apr 2, 2021 at 8:50 AM Bruce Donzanti <donza2735@...> wrote:
Thank you all for the feedback.  I am doing OAG now and can easily get good tracking and round stars up to 5 minutes but the guiding can be finicky at times.  So, it is a thought to try but I will think about it further.  I realize the mirror is not really locked but it appears good enough to make a huge difference.  And I agree it is probably scope-dependent to a degree as to how well it will work.  

Thx again - I appreciate everyone's opinions and suggestions 



--
Brian 



Brian Valente


Re: Pointing Model for Unguided Imaging on a C11" EdgeHD (with primary mirror locked)

Bruce Donzanti
 

Thank you all for the feedback.  I am doing OAG now and can easily get good tracking and round stars up to 5 minutes but the guiding can be finicky at times.  So, it is a thought to try but I will think about it further.  I realize the mirror is not really locked but it appears good enough to make a huge difference.  And I agree it is probably scope-dependent to a degree as to how well it will work.  

Thx again - I appreciate everyone's opinions and suggestions 


Re: APCC License Transfer

Karen Christen
 

That’s good news, Wayne.  We highly recommend that everyone write pertinent details on the first page of your mount manual, such as the serial number and license keys.  Just another place you can find it later if you need it.  

Karen

AP

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Wayne Hixson via groups.io
Sent: Friday, April 2, 2021 10:14 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] APCC License Transfer

 

All taken care of - twice! The office didn’t have the old key but Daleen and Paige sent me the one for my Mach2. You just have to register the mount. I then found an email conversation I had with Ray Gralak in 2017 about a problem I was having with the key, and a copy of the key was in one of the emails. I filed both safely away and took screen shots also. 


Wayne 


--
Karen Christen
Astro-Physics


Re: Pointing Model for Unguided Imaging on a C11" EdgeHD (with primary mirror locked)

W Hilmo
 

It’s worth a try, but there is no guarantee.

 

I have an EdgeHD 8, and I have to use an OAG.  I tried “locking” the primary mirror.  The clutches on the EdgeHD scopes are not actually locks.  They are two flexible rods that can be locked with the knobs on the back of the scope.  This greatly reduces the primary mirror tilt as the scope moves, but does not completely eliminate it, since the rods are flexible.  Also, the rods don’t to anything to prevent lateral movement of the mirror, relative to the baffle tube

 

The upshot of all of this, is that at a 0.5 arc seconds per pixel, 5 minute exposures were not usable and 3 minute exposures had very noticeable elongation.  Exposures under 2 minutes were not horrible, but also not really good.  I did experiments with a guide scope, and I did experiments with going unguided (with a model and absolute encoders).  The only thing that gave me acceptable results was an OAG, which completely solved the problem.

 

Still, I have heard of others that are locking the mirror clutches and getting acceptable results, so there may be some variability between scopes.  As I said, it’s worth a try to see how your specific scope works.

 

 

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Bruce Donzanti
Sent: Friday, April 2, 2021 3:08 AM
To: main@ap-gto.groups.io
Subject: [ap-gto] Pointing Model for Unguided Imaging on a C11" EdgeHD (with primary mirror locked)

 

I am once again re-thinking if it makes sense to attempt unguided imaging on my C11" EdgeHD where I have now locked down my primary mirror and upgraded to the Optec FastFocus system where focusing is done solely using the secondary mirror.  This should eliminate the major mirror flop/shift issues due to moving the primary mirror.  My scope is on an AP1100 in a permanent observatory but I do not have encoders.  I use a ZWO ASI2600MM Pro camera (APS-C sensor) and usually use the 0.7x focal reducer.  The question is:  Is it even worth the effort to try building a model to go unguided imaging or is a refractor still the way to go?  Guiding works ok but it can be finicky at times.


Re: APCC License Transfer

Wayne Hixson
 

All taken care of - twice! The office didn’t have the old key but Daleen and Paige sent me the one for my Mach2. You just have to register the mount. I then found an email conversation I had with Ray Gralak in 2017 about a problem I was having with the key, and a copy of the key was in one of the emails. I filed both safely away and took screen shots also. 


Wayne 


Re: APCC License Transfer

Wayne Hixson
 

Hey that’s right. I should have got a new one with my Mach2. Didn’t really look, but I’ll check with the documentation 


On Apr 2, 2021, at 6:52 AM, Kenneth Tan <ktanhs@...> wrote:


I should get one with my mach2 gto right? Is it in the manual packet? 

On Fri, 2 Apr 2021 at 21:44, George <george@...> wrote:

Wayne,

 

Contact our office.   We may have it on file.   

 

Everyone…it is VERY IMPORTANT to save a copy of your APCC license key in several backed-up places!

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Wayne Hixson via groups.io
Sent: Thursday, April 1, 2021 7:05 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] APCC License Transfer

 

I’m moving my imaging software to a new computer. I no longer have the email with the license key. Is there a way to recover it, or have it re-sent?


Re: APCC License Transfer

Kenneth Tan
 

I should get one with my mach2 gto right? Is it in the manual packet? 

On Fri, 2 Apr 2021 at 21:44, George <george@...> wrote:

Wayne,

 

Contact our office.   We may have it on file.   

 

Everyone…it is VERY IMPORTANT to save a copy of your APCC license key in several backed-up places!

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Wayne Hixson via groups.io
Sent: Thursday, April 1, 2021 7:05 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] APCC License Transfer

 

I’m moving my imaging software to a new computer. I no longer have the email with the license key. Is there a way to recover it, or have it re-sent?


Re: APCC License Transfer

George
 

Wayne,

 

Contact our office.   We may have it on file.   

 

Everyone…it is VERY IMPORTANT to save a copy of your APCC license key in several backed-up places!

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Wayne Hixson via groups.io
Sent: Thursday, April 1, 2021 7:05 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] APCC License Transfer

 

I’m moving my imaging software to a new computer. I no longer have the email with the license key. Is there a way to recover it, or have it re-sent?


Re: Pointing Model for Unguided Imaging on a C11" EdgeHD (with primary mirror locked)

Jeffc
 

Fwiw, a bit tangential, but to the point of long FL uguided imaging…. I did a backyard test recently of a Meade 12” ACF at f6.7 (2040mm FL) (with clement focuser and robofocus) on the ach2. I didn’t build a model but just did “short” 3 minute unguided  exposures and the stars look good.  


On Apr 2, 2021, at 3:08 AM, Bruce Donzanti <donza2735@...> wrote:

I am once again re-thinking if it makes sense to attempt unguided imaging on my C11" EdgeHD where I have now locked down my primary mirror and upgraded to the Optec FastFocus system where focusing is done solely using the secondary mirror.  This should eliminate the major mirror flop/shift issues due to moving the primary mirror.  My scope is on an AP1100 in a permanent observatory but I do not have encoders.  I use a ZWO ASI2600MM Pro camera (APS-C sensor) and usually use the 0.7x focal reducer.  The question is:  Is it even worth the effort to try building a model to go unguided imaging or is a refractor still the way to go?  Guiding works ok but it can be finicky at times.


Re: Pointing Model for Unguided Imaging on a C11" EdgeHD (with primary mirror locked)

Konstantin von Poschinger
 

Hi,

yes, I would start with a three stripe Modell around the target. 

Grüsse

Konstantin 


Konstantin v. Poschinger


Hammerichstr. 5
22605 Hamburg
040/8805747
0171/1983476

Am 02.04.2021 um 12:08 schrieb Bruce Donzanti <donza2735@...>:

I am once again re-thinking if it makes sense to attempt unguided imaging on my C11" EdgeHD where I have now locked down my primary mirror and upgraded to the Optec FastFocus system where focusing is done solely using the secondary mirror.  This should eliminate the major mirror flop/shift issues due to moving the primary mirror.  My scope is on an AP1100 in a permanent observatory but I do not have encoders.  I use a ZWO ASI2600MM Pro camera (APS-C sensor) and usually use the 0.7x focal reducer.  The question is:  Is it even worth the effort to try building a model to go unguided imaging or is a refractor still the way to go?  Guiding works ok but it can be finicky at times.


Pointing Model for Unguided Imaging on a C11" EdgeHD (with primary mirror locked)

Bruce Donzanti
 

I am once again re-thinking if it makes sense to attempt unguided imaging on my C11" EdgeHD where I have now locked down my primary mirror and upgraded to the Optec FastFocus system where focusing is done solely using the secondary mirror.  This should eliminate the major mirror flop/shift issues due to moving the primary mirror.  My scope is on an AP1100 in a permanent observatory but I do not have encoders.  I use a ZWO ASI2600MM Pro camera (APS-C sensor) and usually use the 0.7x focal reducer.  The question is:  Is it even worth the effort to try building a model to go unguided imaging or is a refractor still the way to go?  Guiding works ok but it can be finicky at times.


Re: 2021 production plans for the 1600GTO?

KHursh
 

CBO are straight shooters.

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