Date   

Re: Spiderwebs in the sky

CaptMax
 

Rolando, I am like Terry and would also like to see your setup. I would like to use my 105 Traveler piggybacked on my 160 Starfire but am using a 1200 GTO mount that I’m quite sure is capable of handling it all. Can you confirm this as well as show us your set up? Thank you, Max 


Re: Mach-2 can not reach target

Greg Vaughn
 

Hi Terri,

 

I guess I’m fortunate that I have had no issues with my meridian flips using  SGPro, connected via the ASCOM driver and running APCC as well.   I set the meridian flip to 10 minutes in SGPro and don’t do anything special with APCC or the ASCOM driver.

 

As I’ve mentioned before, I think, I use ASTAP for my plate solver.   I also have the plate solver set so that it selects the LUM filter and 2x2 binning for plate solves (which may be unnecessary but has served me very well for ordinary plate solves and APPM).

 

In  case this helps and at the risk of telling you what you already know, find settings for Meridian flip in SGP under ‘Telescope’ in control panel – check ‘Use Auto Meridian Flip’ (under heading ‘Telescope Options/Data’), then click ‘Set’ to call up the Meridian Flip Options menu.   I set ‘Minutes Past Meridian to Flip’ to 10 minutes (default?) and then I click ‘Auto center after Meridian Flip’.

 

Most of my meridian flips have been North, not South, since past South I’m in the trees except at very high elevation.   However, I’ve imaged several targets before and after the northern Meridian flip, such as Eastern and Western Veil and the Bubble Nebula, automatically and without any difficulties. 

 

This is using an AP130 and not an SCT on a Mach 2, so I suppose your mileage may vary depending on your equipment.

 

Good luck sorting it out.

 

Cheers,

Greg

 

 

 


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Re: Spiderwebs in the sky

Michael Hambrick <mike.hambrick@...>
 

I have seen something similar when I am running my SBIG camera in the continuous focus mode and then I stop it. The last image has a similar appearance.


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Michael Hambrick
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TSR Global Manufacturing Support
PO Box 2000
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Phone: +1 (409) 882-2799
email: mike.hambrick@...


Re: Spiderwebs in the sky

Roland Christen
 

All points on the same side. I started with the first point on the object while it was some 3.5 hours in the east, then added 4 more points until i got to the meridian. I actually took one point about 1/2 hour past the meridian and my last image was taken with the scope about 1 hour past the meridian.

I lost a number of subs when my QSI camera messed up about 1/2 way thru my session. Once in a while the image has a herringbone zigzag pattern that only goes away when i cycle power to the camera. I was busy working inside and did not notice the problem until an hour had passed.

Has anyone ever seen this kind of defect, and what could be causing it:






-----Original Message-----
From: Dean Jacobsen <deanjacobsen@...>
To: main@ap-gto.groups.io
Sent: Sun, Aug 16, 2020 11:27 am
Subject: Re: [ap-gto] Spiderwebs in the sky

On Sun, Aug 16, 2020 at 08:26 AM, uncarollo2 <chris1011@...> wrote:
I used the simple keypad routine.
Were all 5 points with the telescope on the same side of the mount or were one or more points from the other side?
 
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Spiderwebs in the sky

Dean Jacobsen
 

On Sun, Aug 16, 2020 at 08:26 AM, uncarollo2 <chris1011@...> wrote:
I used the simple keypad routine.
Were all 5 points with the telescope on the same side of the mount or were one or more points from the other side?
 
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Spiderwebs in the sky

Roland Christen
 

The image is done at 1x1 binning. If you look at the bottom of the screen you can see that it is set to record the full 3326x2504 pixels.
The image is done with settings in Autosave, which has different settings that what is shown on the screen. The 4x4 is for quick 1 second grab to locate a star for focus purposes.
Autosave is independent of Find DSO or Focus or any of the other exposure presets.

As the temperature drops a refractor's focal length shrinks faster than the tube shrinks, so focus has to move inward.

Roland



-----Original Message-----
From: M Hambrick <mhambrick563@...>
To: main@ap-gto.groups.io
Sent: Sun, Aug 16, 2020 9:49 am
Subject: Re: [ap-gto] Spiderwebs in the sky

Great shot Roland

I also have some questions about your MaxIm DL settings:

Do you always image using the Find DSO setting ?

I think I read somewhere that the sub-frame box should not be checked when you are taking an actual image. I am not exactly why, but I see that yours is checked. Is this for the focus tweaking ?

You mentioned that you tweaked the focus during the imaging session. How do you know which direction to move it ? Is it reasonable to assume that as the OTA cools down it will always shrink, and therefore you would need to rack the focuser out ?

I can't tell if I am looking at it correctly, but it looks like you have the binning set at 4X4. Is that correct ?


Re: Spiderwebs in the sky

Bill Long
 

+1 for ease of use.

It would be nice to get some expanded plate solve options for people that dont use SkyX, Pinpoint, or SGP. ASTAP or Planewave Platesolve2 would be good. I use SkyX for this, but it's the only reason why I have SkyX still. Everything else in my system uses ASTAP or PS2.


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Sunday, August 16, 2020 8:26 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Spiderwebs in the sky
 
I used the simple keypad routine. However, if you are permanently set up I would recommend APCC-APPM. It comes with the mount. It can do a whole sky modeling run while you are having dinner.

Rolando



-----Original Message-----
From: Dean Jacobsen <deanjacobsen@...>
To: main@ap-gto.groups.io
Sent: Sat, Aug 15, 2020 7:52 pm
Subject: Re: [ap-gto] Spiderwebs in the sky

Very nice image.

Was the modeling done with APCC/APPM or with the new keypad feature?
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Spiderwebs in the sky

Roland Christen
 

I used the simple keypad routine. However, if you are permanently set up I would recommend APCC-APPM. It comes with the mount. It can do a whole sky modeling run while you are having dinner.

Rolando



-----Original Message-----
From: Dean Jacobsen <deanjacobsen@...>
To: main@ap-gto.groups.io
Sent: Sat, Aug 15, 2020 7:52 pm
Subject: Re: [ap-gto] Spiderwebs in the sky

Very nice image.

Was the modeling done with APCC/APPM or with the new keypad feature?
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Spiderwebs in the sky

Roland Christen
 

Yes, that's right. Each exposure was 600 seconds long. I took the screen shot during one of the exposures.

Rolando



-----Original Message-----
From: dvjbaja <jpgleasonid@...>
To: main@ap-gto.groups.io
Sent: Sat, Aug 15, 2020 7:18 pm
Subject: Re: [ap-gto] Spiderwebs in the sky

Interestingly, the MaximDL camera control window shows 515 of 600 sec.  


Re: Spiderwebs in the sky

M Hambrick
 

Great shot Roland

I also have some questions about your MaxIm DL settings:

Do you always image using the Find DSO setting ?

I think I read somewhere that the sub-frame box should not be checked when you are taking an actual image. I am not exactly why, but I see that yours is checked. Is this for the focus tweaking ?

You mentioned that you tweaked the focus during the imaging session. How do you know which direction to move it ? Is it reasonable to assume that as the OTA cools down it will always shrink, and therefore you would need to rack the focuser out ?

I can't tell if I am looking at it correctly, but it looks like you have the binning set at 4X4. Is that correct ?


Re: Mach-2 can not reach target

Bill Long
 

SG Pro just talks to the ASCOM driver, so whatever the issue is, it is not likely to be something SG Pro is doing.


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Terri Zittritsch <theresamarie11@...>
Sent: Sunday, August 16, 2020 7:20 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
On Sun, Aug 16, 2020 at 10:01 AM, Konstantin von Poschinger wrote:
Hi Terri,
 
no I am using only MaximDL. The error can be avoided if you slew first in a cw up position an do the flip from that position. As Ray have said it seems to be a firmware bug. We have t wait for answers from Howard.
 
Konstantin
 
Thanks Konstantin, I'll wait to hear what's happening on this thread before pursuing anything with SGPro.     It's wild that it just started to occur for me... Been imaging with updated firmware load (sent my mount in just before Neowise) for updates.    I've used it quite a few times since being updated and this error just started occurring over the last 2 days.


Terri


Re: Mach-2 can not reach target

Terri Zittritsch
 

On Sun, Aug 16, 2020 at 10:01 AM, Konstantin von Poschinger wrote:
Hi Terri,
 
no I am using only MaximDL. The error can be avoided if you slew first in a cw up position an do the flip from that position. As Ray have said it seems to be a firmware bug. We have t wait for answers from Howard.
 
Konstantin
 
Thanks Konstantin, I'll wait to hear what's happening on this thread before pursuing anything with SGPro.     It's wild that it just started to occur for me... Been imaging with updated firmware load (sent my mount in just before Neowise) for updates.    I've used it quite a few times since being updated and this error just started occurring over the last 2 days.


Terri


Re: Mach-2 can not reach target

Konstantin von Poschinger
 

Hi Terri,

no I am using only MaximDL. The error can be avoided if you slew first in a cw up position an do the flip from that position. As Ray have said it seems to be a firmware bug. We have t wait for answers from Howard.

Konstantin



Am 16.08.2020 um 15:12 schrieb Terri Zittritsch <theresamarie11@...>:

Konstantin, you are not alone... I've had 2 nights interrupted by RA limit errors that can not be cleared as well..   Right after a meridian flip, the software seems to lock up while trying to do the plate solve and center right at the meridian.    I've sent my logs to Roland.

I've now had it happen on 2 different targets.   I use SGPro as well.. so I was using SGPro plus APCC plus the ASCOM driver.

Are you using SGPro and/or were you imaging right around the meridian?

Terri



Re: Spiderwebs in the sky

Terri Zittritsch
 

On Sat, Aug 15, 2020 at 06:58 PM, uncarollo2 <chris1011@...> wrote:
The 160 refractor is a handful, plus I had my 92mm Stowaway riding shotgun, but the mount handled everything beautifully.  just posted the image on AstroBin:
Roland, This is great!    Can you show a picture of your setup?  I'm wondering how you mount everything up to make this work.    Beautiful shot by the way.     I need to get to the veil this summer with narrowband as well.. I've purchased the Chroma 3nm filters because I couldn't get Astrodon in any predictable timeframe.. Chroma filters are made right here in Vermont!      

I did 5 hours on SH2-155 last night in narrowband, lost my last hour due to the snafu I shared with mystery RA limit error.    



Terri


Re: Mach-2 can not reach target

Terri Zittritsch
 

Konstantin, you are not alone... I've had 2 nights interrupted by RA limit errors that can not be cleared as well..   Right after a meridian flip, the software seems to lock up while trying to do the plate solve and center right at the meridian.    I've sent my logs to Roland.

I've now had it happen on 2 different targets.   I use SGPro as well.. so I was using SGPro plus APCC plus the ASCOM driver.

Are you using SGPro and/or were you imaging right around the meridian?

Terri


Re: Mach1 and GTOCP4 Yellow Light

thefamily90 Phillips
 

I have used a Telegizmos 365 tarp for years to protect telescopes and mounts from the elements with excellent results. They come in all sizes.

Jim


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Saturday, August 15, 2020 5:27:35 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach1 and GTOCP4 Yellow Light
 
I would cover it with a small plastic sheet. Just keep rain from impacting the box directly.

Roland



-----Original Message-----
From: Mikko Viljamaa <mikko.viljamaa@...>
To: main@ap-gto.groups.io
Sent: Sat, Aug 15, 2020 3:52 pm
Subject: Re: [ap-gto] Mach1 and GTOCP4 Yellow Light

I can easily believe this. I’m using a rain app but it’s not bullet proof so I’m sure the unit got wet at some point. Unfortunately this is the best I can do at this point. 

What’s interesting is that when the first symptoms of the yellow light occurred and I had issues for a few night , suddenly the mount worked just fine for a week after that again.


- Mikko


Re: Spiderwebs in the sky

Dean Jacobsen
 

Very nice image.

Was the modeling done with APCC/APPM or with the new keypad feature?
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Spiderwebs in the sky

dvjbaja
 

Interestingly, the MaximDL camera control window shows 515 of 600 sec.  


Re: [ap-ug] Spiderwebs in the sky

Roland Christen
 

Tanks. Looking forward to doing some deep sky beyond the Milky Way this Fall.

Rolando


-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>; main@ap-ug.groups.io <main@ap-ug.groups.io>
Sent: Sat, Aug 15, 2020 6:00 pm
Subject: Re: [ap-gto] [ap-ug] Spiderwebs in the sky

Nice job! Excellent image too!


From: main@ap-ug.groups.io <main@ap-ug.groups.io> on behalf of Roland Christen via groups.io <chris1011@...>
Sent: Saturday, August 15, 2020 3:58 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>; main@ap-ug.groups.io <main@ap-ug.groups.io>
Subject: [ap-ug] Spiderwebs in the sky
 
Hi Astronuts,


I enjoyed several nights of clear skies and good seeing, so I was able to image some deep sky with my 160EDF refractor, Mach2 mount and QSI CCD camera. I modeled 5 points along the object's path and did 19 exposures total, 10 minutes each. The 160 refractor is a handful, plus I had my 92mm Stowaway riding shotgun, but the mount handled everything beautifully.  just posted the image on AstroBin:

https://www.astrobin.com/59e7g1/

Rolando

For those of a technical bent, here is a screenshot of the RA and DEC path that the modeling produced over a period of about 1 hour. Two little blips on the RA trace was caused by me touching the focuser, refocusing the image:


Re: [ap-ug] Spiderwebs in the sky

Bill Long
 

Nice job! Excellent image too!


From: main@ap-ug.groups.io <main@ap-ug.groups.io> on behalf of Roland Christen via groups.io <chris1011@...>
Sent: Saturday, August 15, 2020 3:58 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>; main@ap-ug.groups.io <main@ap-ug.groups.io>
Subject: [ap-ug] Spiderwebs in the sky
 
Hi Astronuts,


I enjoyed several nights of clear skies and good seeing, so I was able to image some deep sky with my 160EDF refractor, Mach2 mount and QSI CCD camera. I modeled 5 points along the object's path and did 19 exposures total, 10 minutes each. The 160 refractor is a handful, plus I had my 92mm Stowaway riding shotgun, but the mount handled everything beautifully.  just posted the image on AstroBin:

https://www.astrobin.com/59e7g1/

Rolando

For those of a technical bent, here is a screenshot of the RA and DEC path that the modeling produced over a period of about 1 hour. Two little blips on the RA trace was caused by me touching the focuser, refocusing the image:

10681 - 10700 of 83093