Date   

Re: Pelican images

Phillip H Coker <pcoker36@...>
 

Not bad for the conditions. One thing tho, that haze is covering us In Colorado, too. It's from the fires in California. We, fortunately, remain below kindling.
Phillip

On Aug 26, 2020, at 12:40, uncarollo2 <chris1011@aol.com> via groups.io <chris1011=aol.com@groups.io> wrote:

hello Astronuts,

I did some imaging of the Pelican in extremely poor transparency over the last couple of nights. The seeing was exceptional the first night and very good the next two. transparency was so poor due to fires in Colorado that I could only see a couple of stars and Jupiter. The Moon was blood red. Thank goodness for deep red H-a filters which seem to cut thru the haze.

The first image is the entire Pelican region. The second is a crop of the active region which I will call the "Tornado Forming". It reminds me of our Midwest spring tornadoes which come dancing out of dark clouds and cause much damage when the touch down. We had a number of them this spring, fortunately they all missed our place.


https://www.astrobin.com/full/iuby4z/0/

https://www.astrobin.com/full/pkkm0d/0/?nc=user

Rolando


Pelican images

Roland Christen
 

hello Astronuts,

I did some imaging of the Pelican in extremely poor transparency over the last couple of nights. The seeing was exceptional the first night and very good the next two. transparency was so poor due to fires in Colorado that I could only see a couple of stars and Jupiter. The Moon was blood red. Thank goodness for deep red H-a filters which seem to cut thru the haze.

The first image is the entire Pelican region. The second is a crop of the active region which I will call the "Tornado Forming". It reminds me of our Midwest spring tornadoes which come dancing out of dark clouds and cause much damage when the touch down. We had a number of them this spring, fortunately they all missed our place.


https://www.astrobin.com/full/iuby4z/0/

https://www.astrobin.com/full/pkkm0d/0/?nc=user

Rolando


Re: PEMPro vs seeing

CurtisC
 

Thank you.  We've had a run of really terrible seeing lately (so. Calif.).  I've been in communication with Howard over the performance of my Mach1, and I won't bother you with that.  But I've wondered if the bad PE curves I've been getting would improve if the seeing improves.


Re: APPM and color cameras #APCC

Dean Jacobsen
 

The Mach2 you guys made for me is super!  Absolutely love it.  :-)
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: APPM and color cameras #APCC

Roland Christen
 

Super!

Rolando



-----Original Message-----
From: Dean Jacobsen <deanjacobsen@...>
To: main@ap-gto.groups.io
Sent: Wed, Aug 26, 2020 9:10 am
Subject: Re: [ap-gto] APPM and color cameras #APCC

This image was taken using unguided 180s images.  The APPM run was done with the ASI2600MC color camera.  APPM was connected to Sequence Generator Pro and the plate solves were with Plate Solve 2.

I took a total of 95 x 180s unguided sub-exposures.  All 95 showed round stars and all 95 were used in the image integration stack.

The guide scope and guide camera continue to live on a shelf in the back room...

https://www.astrobin.com/full/vh9rug/C/
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Mach-2 can not reach target

diogenes ofsinope
 

Bill ... I'm building a 130EDFGT / Quad TCC / IMX455 imaging train now. Do you attribute the extra 2.3mm to the additional optical distance from a nice ~3mm thick filter element between your sensor and the Quad TCC?

Michael

On Mon, Aug 17, 2020 at 6:28 PM Bill Long <bill@...> wrote:
Nailing down the spacing gets difficult as well, since the tilt is present. Solving the tilt is a challenge when the spacing is not deadly accurate. So you end up in this vicious cycle. 

I decided to put the camera on a flatfield DK, and I have most of the tilt solved. Then I will try again on the TCC when the camera is fairly well tamed to begin with. big chip, really small pixels, so it is pretty brutal to get dialed in on fast optics.

I added 2.3mm to the spacing published for the Quad TCC and that seemed to be the point of least remaining curvature. I could not get the far edges to cooperate though so I may still have more work to do.  


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Dale Ghent <daleg@...>
Sent: Monday, August 17, 2020 4:23 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 

I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>





Re: PEMPro vs seeing

Ray Gralak
 

Hi Curtis,

Are the results of a PEMPro v.3 run affected by seeing? Slightly? A lot?
Stellar scintillation is always present to some degree. The primary purpose of PEMPro is to create a PEC curve based on data captured over multiple worm cycles, so it is very resistant to poor seeing. That said, you will likely get slightly more accurate results if you let your telescope cool down to ambient temperature so tube currents won't influence the tracking data.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of PEMPro V3: https://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of CurtisC via groups.io
Sent: Tuesday, August 25, 2020 1:03 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] PEMPro vs seeing

Are the results of a PEMPro v.3 run affected by seeing? Slightly? A lot?


Re: APPM and color cameras #APCC

Karen Christen
 

Well done, Dean!  That’s a beauty.

Karen

AP

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Dean Jacobsen
Sent: Wednesday, August 26, 2020 9:11 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] APPM and color cameras #APCC

 

This image was taken using unguided 180s images.  The APPM run was done with the ASI2600MC color camera.  APPM was connected to Sequence Generator Pro and the plate solves were with Plate Solve 2.

I took a total of 95 x 180s unguided sub-exposures.  All 95 showed round stars and all 95 were used in the image integration stack.

The guide scope and guide camera continue to live on a shelf in the back room...

https://www.astrobin.com/full/vh9rug/C/
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


--
Karen Christen
Astro-Physics


Re: APPM and color cameras #APCC

Dean Jacobsen
 

This image was taken using unguided 180s images.  The APPM run was done with the ASI2600MC color camera.  APPM was connected to Sequence Generator Pro and the plate solves were with Plate Solve 2.

I took a total of 95 x 180s unguided sub-exposures.  All 95 showed round stars and all 95 were used in the image integration stack.

The guide scope and guide camera continue to live on a shelf in the back room...

https://www.astrobin.com/full/vh9rug/C/
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Equipment for an observatory

Worsel
 

Thanks!

Bryan

--

I certainly will!

/dale


Re: APCC-Pro manual temperature/pressure entry question

eckhard.voelcker@...
 

Bob,

just click on the empty space where the control for entering and displaying the temperature should be and it will appear :) The control is invisible unless clicked. 

Eckhard


PEMPro vs seeing

CurtisC
 

Are the results of a PEMPro v.3 run affected by seeing?  Slightly?  A lot?


Re: Veil in Hubble Palette

Bill Long
 

Looks excellent! 🙂 Just getting rolling myself tonight. Wizard Nebula in OIII tonight. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 24, 2020 9:49 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Veil in Hubble Palette
 
Thanks, that's about the best I can do here at my location for capturing very faint details.

Tonight I'm shooting the Pelican in Ha. The seeing is super but the haze from the fires in Colorado have turned our skies into soup. I can only see Jupiter and Vega at this point, even Saturn is barely visible thru the haze. It will be interesting to see if my Ha filter can cut thru this haze.

Guiding is so good that I'm getting about the highest resolution I have ever seen with the 160EDF scope on the Mach2 mount. Very still air but unfortunately not transparent. I'm totally convinced that encoder mounts with Renishaw REXA Absolute Encoder system is head and shoulders above any other method if you want to bring out the best in your scope.
(P.S. don't be fooled, not all Renishaw encoders have this extreme high performance)

Rolando

Here's my guiding graph on my first single 1 hour exposure:




-----Original Message-----
From: Marcelo Figueroa via groups.io <marfig1970@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 24, 2020 11:29 pm
Subject: Re: [ap-gto] Veil in Hubble Palette

Great image. I love the detail in the faintest layers.


Re: Veil in Hubble Palette

Roland Christen
 

Thanks, that's about the best I can do here at my location for capturing very faint details.

Tonight I'm shooting the Pelican in Ha. The seeing is super but the haze from the fires in Colorado have turned our skies into soup. I can only see Jupiter and Vega at this point, even Saturn is barely visible thru the haze. It will be interesting to see if my Ha filter can cut thru this haze.

Guiding is so good that I'm getting about the highest resolution I have ever seen with the 160EDF scope on the Mach2 mount. Very still air but unfortunately not transparent. I'm totally convinced that encoder mounts with Renishaw REXA Absolute Encoder system is head and shoulders above any other method if you want to bring out the best in your scope.
(P.S. don't be fooled, not all Renishaw encoders have this extreme high performance)

Rolando

Here's my guiding graph on my first single 1 hour exposure:




-----Original Message-----
From: Marcelo Figueroa via groups.io <marfig1970@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 24, 2020 11:29 pm
Subject: Re: [ap-gto] Veil in Hubble Palette

Great image. I love the detail in the faintest layers.


Re: Veil in Hubble Palette

Marcelo Figueroa
 

Great image. I love the detail in the faintest layers.


Re: Argh! I dropp the dec head while disconnecting the cable!

Benoit Schillings
 

Ap-1600 ?

- -benoit

On Mon, Aug 24, 2020 at 4:15 PM William L <bill@bill-lee.biz> wrote:

... and the plug ripped out of the socket, bending the pins.


I’m depressed and am missing valuable imaging time....


Argh! I dropp the dec head while disconnecting the cable!

William L
 

... and the plug ripped out of the socket, bending the pins. 


I’m depressed and am missing valuable imaging time....


Re: CP3 V2 upgrade

Dominique Durand
 
Edited

Hi Arun,
I had asked the question for a passage CP3 towards CP4 which amounts to the same thing and I understood that it was necessary to recover on a PC the PEC with PEMPRo to reload it then. It interests me to check if I understood correctly because I have a mach1 / CP3 which could perhaps one day pass in CP4.


Re: APPM and color cameras #APCC

Dean Jacobsen
 

Yes, “a bit long” is somewhat of an understatement with regard to plate solves. ;-)

180s was the exposure time for my image subs.  Sorry for the ambiguous writing. 

For plate solves I have been using 4s with the ASI1600 and the ASI2600MC.
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


CP3 V2 upgrade

Arun Hegde
 

Hello,

I recently purchased a used Mach 1 that came with a CP3 controller. I purchased the V2 chip and tool from AP. My question is: will replacing the chip erase the stored PEC curve? If so, how can I prevent that or save and reload it? Thanks,

Arun

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