Date   

Re: Is this tilt in the image train?

Dean Jacobsen
 

What camera was used?
--
Dean Jacobsen
Astrobin Image Gallery - https://www.astrobin.com/users/deanjacobsen/


Re: SH2-171 on Mach2 and new Moravian c3 61000 Pro (Sony IMX 455)

Eric Weiner
 

Very nice Andrea. I’d be very interested hearing more about your new camera as you get more time with it. I have been seriously considering it for my next purchase. Did you go with the Moravian CFW? Any additional info or experience you have with their camera and accessories will be greatly appreciated.

Eric


Is this tilt in the image train?

Tom Blahovici
 
Edited

Hi
Now that I have my new AP1100, I am seeing the starts in their true shapes.  Gone are the guiding issues and so on with the new APPM models.
So, this is the first image taken as a test unguided at 5 minutes.  I took the same image with the autoguider running and it made no corrections.

Does this looks like tilt?  In your experience is it? CCDInspector shows a tilt in the direction from lower left to upper right.
It appears to come from before the focuser since the image changes with a 180 degree shift in the camera rotation.

I have tilt adapters both before the focuser (Moonlight nightcrawler) and after.
The telescope is that notorious FSQ106, the telescope plagued with this type of issue.



Thanks, Tom


Re: Reflection in image

Andrea Lucchetti
 

yes, it can always happen. 
fully agree with the approach.


SH2-171 on Mach2 and new Moravian c3 61000 Pro (Sony IMX 455)

Andrea Lucchetti
 
Edited

Hi,
as we had some discussions around the new Sony Cmos and Moravian cameras, I am attaching my first image using the combo Mach2 and Moravian C3.

After a number of issues and under a poor sky , I've finally managed to take the image.
LRGB bin 2x2, 12x300s per channel
200mm f 3.9( 4.5 corrected) self built newton telescope
Mount AP Mach2
C3 61000 pro, gain=0
acquisition in NINA: very poor guiding as it was the very first time for me with PHD2
processing in Pixinsight

Compared to the 16803 ccd, this sony sensor has greater dynamic thanks to minimal read noise.
in 2x2, it has better resolution than the 16803 and same Mpixel count.
in 2x2 has a full well of 200k.
I find it very good for RGB and should amazing in narrow band at gain= 2750.
the camera tilting plate works well, and ccd seems very well aligned (I didn't need to play with tilt)
the cooling is effective but not impressive: I achieved -43 deg @95% power. temperature was indeed very stable even at this high power level.

this is the link to the image.
https://andrealucchetti.smugmug.com/What-is-new/i-vStTQ56/A

Andrea


Re: Reflection in image

Bill Long
 

John Hayes reported something similar with the baffle on his 20" CDK. IIRC they sent him a newly designed one.


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Andrea Lucchetti <andlucchett@...>
Sent: Monday, September 27, 2021 11:38 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Reflection in image
 
Wow, 
a telescope like the CDK20 can have a baffling issue?
I can understand the problem in lesser telescope but in the PW CDK is very strange, no?
you should propose them your retrofit kit :-)
Andrea


Re: Reflection in image

 

>>>a telescope like the CDK20 can have a baffling issue?

Yeah, but I don't want to get into any bashing here

I think they recently changed their baffle design, and it turns out there were some issues.

we did send them the feedback and generally Planewave has been great about it, and our hosting partner Obstech has been extremely good at diagnostics and interim fixes.

As with a lot of things astronomical, i find it works better when i approach it as a partnership


Brian


On Mon, Sep 27, 2021 at 11:39 AM Andrea Lucchetti <andlucchett@...> wrote:
Wow, 
a telescope like the CDK20 can have a baffling issue?
I can understand the problem in lesser telescope but in the PW CDK is very strange, no?
you should propose them your retrofit kit :-)
Andrea



--
Brian 



Brian Valente


Re: Reflection in image

Andrea Lucchetti
 

Wow, 
a telescope like the CDK20 can have a baffling issue?
I can understand the problem in lesser telescope but in the PW CDK is very strange, no?
you should propose them your retrofit kit :-)
Andrea


Re: What does GTO stand for in A-P mounts (i.e. A-P1100GTO)

Dean Jacobsen
 

On Mon, Sep 27, 2021 at 06:24 AM, fernandorivera3 wrote:
What about:
Great
To
Own??
That’s probably it.
 
--
Dean Jacobsen
Astrobin Image Gallery - https://www.astrobin.com/users/deanjacobsen/


Re: Reflection in image

Emilio J. Robau, P.E.
 

I don't want to goober up the AP list too much, and I do own an AP1600 upon which the scope sits, so reference to the baffle leak article would help my baffling artifact.  


Re: Reflection in image

Stone, Jack G
 

There were some articles written on the 12” when it was first released.

One of which was a baffle leak – I tried to google it but to no avail.  But it was reported both in the US and UK predominantly –

Also was the mirror support design – there were modifications as well, seems as though there were some distortions.

There were other mentions as well – If anyone has any references to these articles – would be appreciated.

 

 

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Brian Valente
Sent: Monday, September 27, 2021 11:14 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Reflection in image

 

you might try extending the baffle a few inches (or experiment) and see if you can eliminate it?

 

I had a similar issue on my cdk20. After I isolated the cause using paper baffle extensions, my solution was to 3d print a baffle extension and attach it 

 

Problem gone. 

 

Brian

 

On Mon, Sep 27, 2021 at 10:55 AM Emilio J. Robau, P.E. <ejr@...> wrote:

Robert,

I have been fighting the same thing on my 12"GSO RC for years.   I have a truss system.   If you find a remedy, please let me know.  Recently I placed protostar flock on the tube portion of the scope to make it even darker, but I doubt it will help.  It seems to happen when my scope is pointed between 10 degrees and 30 or so degrees, and is less frequent when I am pointed more towards the zenith.  I think it also happens when there is a bright star nearby.


 

--

Brian 

 

 

 

Brian Valente


Re: Reflection in image

 

you might try extending the baffle a few inches (or experiment) and see if you can eliminate it?

I had a similar issue on my cdk20. After I isolated the cause using paper baffle extensions, my solution was to 3d print a baffle extension and attach it 

Problem gone. 

Brian


On Mon, Sep 27, 2021 at 10:55 AM Emilio J. Robau, P.E. <ejr@...> wrote:
Robert,

I have been fighting the same thing on my 12"GSO RC for years.   I have a truss system.   If you find a remedy, please let me know.  Recently I placed protostar flock on the tube portion of the scope to make it even darker, but I doubt it will help.  It seems to happen when my scope is pointed between 10 degrees and 30 or so degrees, and is less frequent when I am pointed more towards the zenith.  I think it also happens when there is a bright star nearby.



--
Brian 



Brian Valente


Re: Reflection in image

Emilio J. Robau, P.E.
 

Robert,

I have been fighting the same thing on my 12"GSO RC for years.   I have a truss system.   If you find a remedy, please let me know.  Recently I placed protostar flock on the tube portion of the scope to make it even darker, but I doubt it will help.  It seems to happen when my scope is pointed between 10 degrees and 30 or so degrees, and is less frequent when I am pointed more towards the zenith.  I think it also happens when there is a bright star nearby.


Re: Some APCC mis-information on Cloudy Nights

Karen Christen
 

Hello gentlemen,

 

First, welcome, Tom, to the Astro-Nuts.  This is a great group of people with extensive experience using AP mounts.  Their knowledge is tremendous.  First-time AP mount users are often overwhelmed, so don’t feel alone or hesitate to throw your questions out. 

 

Regarding your request for videos… it’s on the (very long) list of things to do.  We realize visual guides are helpful for many users and certainly expected by the younger generations.  Our delay is due to many other projects in the queue and the fact that none of us are skilled video makers.  Nevertheless, we will be working on this in the near future. 

 

Thank you to all our other members who are trying to help Tom. 

 

Wishing you all clear skies,

Karen

AP

 

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Bill Long
Sent: Saturday, September 25, 2021 5:00 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Some APCC mis-information on Cloudy Nights

 

Thats easy enough to do. Once you have everything connected and the mount powered on, you can use APJog (installs with the V2 Driver package) to connect and move the mount around. 

 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Thomas Giannaccini <tgiann3@...>
Sent: Saturday, September 25, 2021 2:55 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Some APCC mis-information on Cloudy Nights

 

Thank you Bill, 

I think if I can get the mount to move via PC tonight I'll consider the day a success. Haha

 

Tom

 

On Sat, Sep 25, 2021 at 3:52 PM Bill Long <bill@...> wrote:

Backyard Nikon is super user friendly. Another good one is APT (Astrophotography Tool). I would go with the most user friendly package for now and worry about advanced features and stuff later.

 

As an aside, I tried PRISM and thought it was way overly complicated. I am sure its good once you get used to it, but for me it was too much.

 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Thomas Giannaccini <tgiann3@...>
Sent: Saturday, September 25, 2021 2:49 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Some APCC mis-information on Cloudy Nights

 

Thank you Bill,

Yes, this helps. I just emailed Daleen about APCC and APPM so I'll wait to hear back. I believe Backyard Nikon allows this extra functionality you were speaking about; really the DSLR is just to limit what I have to learn right now.  An astro cam is in my near future but probably after an electronic focuser.

 

Thank you,

 

Tom

 

On Sat, Sep 25, 2021 at 3:40 PM Bill Long <bill@...> wrote:

You dont need that box in the first 3 photos. That is not provided with the mount anyhow and its intention is to convert physical serial devices to a USB output.  It is not necessary.

 

On the CP4, you see one USB and one Ethernet on the left side. That you plug into your computer. You can plug one or both of them in if you would like. Motor cable runs to the connector labeled motor. The encoder box under the RA axis has a cable that plugs into the port labeled encoder. The hand controller (if you have one) plugs into the port labeled keypad. The power plugs into the port labeled 12v DC. 

 

On your PC you install the following:

 

  1. ASCOM Platform: https://github.com/ASCOMInitiative/ASCOMPlatform/releases/download/v6.5SP1Release/ASCOMPlatform65SP1.exe
  2. AP V2 ASCOM Driver: Astro-Physics V2 ASCOM Driver and Tutorial Videos (gralak.com)

At this stage you have the basic stuff to connect your PC to the mount and software to the mount that uses ASCOM. You also have the platform installed so other ASCOM devices can work, such as focusers, cameras, filter wheels, etc.

 

The next step would be to install the software you want to use to control the mount and your imaging devices. That will vary, based on taste. Some common ones include:

  1. Starkeeper Voyager 
  2. NINA
  3. Sequence Generator Pro
  4. PRISM (which you said you already bought)

Since you said you will use a DSLR make sure the software package you install allows you to do that. Not all of them support DSLR cameras. Voyager for example does not, as there is no native DSLR support and I am not aware of any functional DSLR ASCOM drivers. Someone else may know better than me on that topic, as I do not use DSLR's for imaging.

 

You did mention you bought the mount used, so APCC Pro would require a license transfer from the previous owner to you. Depending on when the seller obtained APCC (or if they did at all) this experience will vary and you should contact Astro-Physics to sort that out. 

 

-Bill 

  1.  
  2.  

 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Thomas Giannaccini <tgiann3@...>
Sent: Saturday, September 25, 2021 2:17 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Some APCC mis-information on Cloudy Nights

 

Hello All,

First, I want to thank everyone for helping me through my question on Park positions. As for the posts on Cloudy Nights…

So this 1100GTO w/ AE and CP4 is my first mount. I bought it from Ken. He drove 27 hours over 2 days to deliver it to me personally, and the price was fair.  So, I do own him a debt of gratitude for that. I believe that the initial aspects of the conversation on Cloudy Nights was just him trying to point me in what he thought was the right direction and including some of his personal experiences in those posts.

It is very obvious to me that we have some incredibly intelligent people both here and on Cloudy Nights. Those people often have various backgrounds which may make the process of setting up astro equipment much easier. It is also very easy to forget how difficult it was to first learn a concept or skill; especially if it happened a long time ago. But please remember, not everyone comes from a physics or computer science background. Personally, I am in healthcare.

 

I can see how an end user can end up with certain impressions of how astro equipment works based on their experiences. It can take a great deal of research and trial and error to get these things working right, and often its done without someone next to you guiding you through it. I can understand the Astro-Physics community being upset about how certain things were worded. There may be some frustration involved on the part of the poster. So, please, when educational materials are being developed, please take this into consideration. Videos should be given serious consideration.  Some of us do need to be walked through from start to finish because we lack pre-requisite background. I do know Ray has some videos and they are on my near future to-do list. I think they were out of my grasp until now.

I do have decent computer skills and I would say my general trouble shooting skills are pretty darn good. When it comes to connecting astro equipment of any sort to a computer this is a completely new topic for me.

The way I understand it is that ASCOM is the language or platform through which all astro equipment communicates. Easy enough. There are drivers one needs to make various equipment operate. Got that as well. What gets muddy very quickly is how an end user goes about setting up the communication between parts. My father was a network engineer before the birth of mainstream internet and I don’t ask him about this because it strikes me as a special use of common items where the exact details of how the network and software connections are made must be accurate.   I can see very easily how a new user would struggle here.

Com Ports. A place where data must pass through. Virtual ports are different from physical ports. That’s about as much as I understand. When I look at this piece of equipment, I am very puzzled:

 

 

 

 

 

 

I see A USB 2.0A/B port and 4 serial ports. Serial ports have what look to be Ethernet to Serial Adapters.  How you would use it and why you would use it was an absolute mystery to me before Ken’s post on CN; especially when you look at the back of the CP4. 

 

 

 

 

There is already an ethernet and USB 2.0 A/B port on the CP4. Is the USB converter just to add additional ports?

 

For now, my plan is just to control the 1100 with a peer to peer ethernet connection from my PC.  When we are in the ASCOM settings, COM 1 and such…what exactly do those refer to? If I use a peer to peer ethernet connection, what setting do I use?

 

I’m sorry for the long email, I felt it was best to keep this all in one piece.

 

Thank you,

 

Tom

 

 

On Sat, Sep 25, 2021 at 12:16 PM Ray Gralak <iogroups@...> wrote:

Thanks, Bill!

-Ray

> -----Original Message-----
> From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Bill Long
> Sent: Saturday, September 25, 2021 11:13 AM
> To: main@ap-gto.groups.io
> Subject: Re: [ap-gto] Some APCC mis-information on Cloudy Nights
>
> Done deal.
>
> I will keep an eye on that thread and chime in more if he tries to mislead people further.
>
> HasAnyoneSeenMyNebula uses this group as well. Please do not listen to Ken, he has no idea what he is
> talking about.
>
>
> ________________________________
>
> From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Ray Gralak
> <iogroups@...>
> Sent: Saturday, September 25, 2021 10:57 AM
> To: main@ap-gto.groups.io <main@ap-gto.groups.io>
> Subject: [ap-gto] Some APCC mis-information on Cloudy Nights
>
> Hi all,
>
> It would be appreciated if someone has time to post a response to the incorrect information on Cloudy Nights
> about APCC's Virtual Ports and APPM at this link:
>
> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.cloudynights.com%2Ftopic%2F79
> 0334-has-anyone-used-prism-to-run-an-ap-1100-gto-from-a-
> pc%2F%3Fp%3D11386165&amp;data=04%7C01%7C%7C619444cd2b544de63c1908d9804e0441%7C84df9e7
> fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637681894831878711%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi
> MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=%2F0y60TThJ4m
> Zyf%2B2D3gJYVqbnCkkqDTuOtqA0tyqlTQ%3D&amp;reserved=0
>
> KennyRichmond (his CN handle) wrote this:
> > APCC Pro can and will set up "virtual" com ports that I found to be worthless.
>
> Then this:
> >Okay, well...assuming you read the APCC manual (start at pgs. 99-101), you don't need virtual serial ports
> > to connect to SKYX or Pulse Guide.  Just go through Ascom as you did before APCC.
>
> The AP V2 ASCOM driver uses the virtual COM ports to communicate with APCC. In fact, the first two virtual
> COM ports allow for TWO instances of the AP V2 ASCOM driver. One is created for applications that run
> under the regular user account, and the second is created for client applications that are run "as
> administrator". Both instances of the AP V2 ASCOM driver can be active simultaneously because APCC
> multiplexes their requests.
>
> And this is also incorrect:
> > Virtual Ports start at Com 21, or better yet, Com 31.
>
> This is not true. Virtual COM ports can start at COM1 and go up from there if there is no COM1 on the
> computer already. Generally, all unused COM ports from COM1 to COM256 are available in the virtual port
> config's drop down list.
>
> > Point mapping for the purpose of tracking rate calibration is far from perfect.  It may be fun for the
> > stalwarts who obsess over unguided astrophotography, but all of the tinkering in Dec and RA required
> > is seemingly pointless (in my humble estimation) when an on-axis guider achieves the same result with
> > 60 seconds of calibration effort.
>
> I have no idea what he means by "tinkering in RA and Dec"? Maybe setting the RA and Dec ranges in APPM
> with the sliders?
>
> -Ray
>
>
>
>
>
>
>
>
>






--
CN: HasAnyoneSeenMyNeblua


--
CN: HasAnyoneSeenMyNeblua


--
CN: HasAnyoneSeenMyNeblua


--
Karen Christen
Astro-Physics


Re: Shipping box and foam for Mach1

Karen Christen
 

Yes, we do. 

Karen

AP

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Patrick Spencer
Sent: Sunday, September 26, 2021 12:48 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] Shipping box and foam for Mach1

 

Does anyone know if AP still sells boxes and foam that can be used to ship a Mach 1? I know there was a recent discussion about buying boxes for the 1100GTO, but I'm wondering about the Mach1, since it's no longer in production?

Thanks,

Patrick Spencer


--
Karen Christen
Astro-Physics


Re: What does GTO stand for in A-P mounts (i.e. A-P1100GTO)

Tom Blahovici
 

Actually, the true story is that 20 years or so ago, the plaques for the first goto mount were sent to the paint shop. When it returned, it was seen they accidentally dropped an O. They stuck with it.


Re: Reflection in image

Roland Christen
 

-----Original Message-----
From: Robert Chozick via groups.io <rchozick@...>
To: main@ap-gto.groups.io
Sent: Mon, Sep 27, 2021 10:24 am
Subject: Re: [ap-gto] Reflection in image

Thanks. It is an 8 inch RC. 

Robert 


On Sep 27, 2021, at 10:10 AM, Roland Christen via groups.io <chris1011@...> wrote:


You don't say what scope that is. Looks like a light leak around a secondary baffle.

Rolando

-----Original Message-----
From: Robert Chozick via groups.io <rchozick@...>
To: main@ap-gto.groups.io
Sent: Sun, Sep 26, 2021 2:09 pm
Subject: [ap-gto] Reflection in image

What would cause the refections in this image?  It has been suggested to be a reflection in one of the t-thread  or 2 inch extensions.  I also place a 2 inch UV/IR filter at the end of the AP CCDT67 tele compressor.  The order is ZWO 2600 color camera + t-thread extensions  + t-thread to 2 inch adapter + 2 inch extensions + CCDT67 + 2 inch Baader UV/IR filter.   I space it to be a .67 reduction factor.  Any help diagnosing this would be appreciated.

https://pbase.com/rchozick/image/171993637

Image cropped without reflection:


Robert

--
Roland Christen
Astro-Physics

--
Roland Christen
Astro-Physics


PA Error what is acceptable for 530mm FL & 2.1arc sec/pix

Shailesh Trivedi
 

Hi,

I ran a 290 point APPM model last Friday and am having trouble centering to a target (I am off by several degrees). Ray suggested "Plate Solve and Recal" in APPM, but I noticed something odd in looking at the Model numbers. The polar elevation is -600 something arc seconds and the polar azimuth is -300 something, see attached.

I know that APPM is expected to correct for PA errors, but for a 530mm FL and image scale of 2.1 arc sec per pixel, is this error too much?

I prefer to dial it down to less than 10 arc sec, but the night I did my PA with PEMPRO, I was chasing the seeing in suburban Sacramento.



Please shed light. thanks.

Shailesh


Re: Reflection in image

Robert Chozick <rchozick@...>
 

Thanks. It is an 8 inch RC. 

Robert 


On Sep 27, 2021, at 10:10 AM, Roland Christen via groups.io <chris1011@...> wrote:


You don't say what scope that is. Looks like a light leak around a secondary baffle.

Rolando

-----Original Message-----
From: Robert Chozick via groups.io <rchozick@...>
To: main@ap-gto.groups.io
Sent: Sun, Sep 26, 2021 2:09 pm
Subject: [ap-gto] Reflection in image

What would cause the refections in this image?  It has been suggested to be a reflection in one of the t-thread  or 2 inch extensions.  I also place a 2 inch UV/IR filter at the end of the AP CCDT67 tele compressor.  The order is ZWO 2600 color camera + t-thread extensions  + t-thread to 2 inch adapter + 2 inch extensions + CCDT67 + 2 inch Baader UV/IR filter.   I space it to be a .67 reduction factor.  Any help diagnosing this would be appreciated.

https://pbase.com/rchozick/image/171993637

Image cropped without reflection:


Robert

--
Roland Christen
Astro-Physics


Re: Reflection in image

Roland Christen
 

You don't say what scope that is. Looks like a light leak around a secondary baffle.

Rolando

-----Original Message-----
From: Robert Chozick via groups.io <rchozick@...>
To: main@ap-gto.groups.io
Sent: Sun, Sep 26, 2021 2:09 pm
Subject: [ap-gto] Reflection in image

What would cause the refections in this image?  It has been suggested to be a reflection in one of the t-thread  or 2 inch extensions.  I also place a 2 inch UV/IR filter at the end of the AP CCDT67 tele compressor.  The order is ZWO 2600 color camera + t-thread extensions  + t-thread to 2 inch adapter + 2 inch extensions + CCDT67 + 2 inch Baader UV/IR filter.   I space it to be a .67 reduction factor.  Any help diagnosing this would be appreciated.

https://pbase.com/rchozick/image/171993637

Image cropped without reflection:


Robert

--
Roland Christen
Astro-Physics

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