Date   

Re: 92mm Stowaway 4th Run Update

thefamily90 Phillips
 

Being a totally visual guy, I wouldn?t know which one to get but, congratulations!!

Jim

On Fri, Aug 6, 2021 at 8:42 PM KHursh via groups.io <khursh@...> wrote:
Well, I was just called by my favorite "Karen" tonight and I will soon be the owner of a new Stowaway. I can't believe my good fortune. Now, do I want the flattener or the reducer? Decisions ... decisions...

Kevin


Re: 92mm Stowaway 4th Run Update

Frost David
 

Congrats!!  I would recommend getting both at the same time as the scope.  Get them while readily available.

David



On Aug 6, 2021, at 7:42 PM, KHursh via groups.io <khursh@...> wrote:

Well, I was just called by my favorite "Karen" tonight and I will soon be the owner of a new Stowaway. I can't believe my good fortune. Now, do I want the flattener or the reducer? Decisions ... decisions...

Kevin


Re: 92mm Stowaway 4th Run Update

KHursh
 

Well, I was just called by my favorite "Karen" tonight and I will soon be the owner of a new Stowaway. I can't believe my good fortune. Now, do I want the flattener or the reducer? Decisions ... decisions...

Kevin


Re: Winter project - Cradle of Starbirth

Eric Weiner
 

👍 Thanks.


Re: Winter project - Cradle of Starbirth

Roland Christen
 

It's 5 nm. The 10 sec exposures are for the Trapezium stars and the surrounding area. More than 10 seconds and the Trapezium stars would begin to saturate and bloat out.

Roland



-----Original Message-----
From: Eric Weiner <weinere@...>
To: Reply To Group <main@ap-gto.groups.io>
Sent: Fri, Aug 6, 2021 3:47 pm
Subject: Re: [ap-gto] Winter project - Cradle of Starbirth

Roland,
At the risk of opening up a can of worms (sooo many opinions on this matter), do you mind if ask what the passband width of H-alpha filter you used for this image is?  It seems like it would necessarily need to be fairly wide with 10s subs.  But then again, M42 is pretty bright. 
 
Eric

--
Roland Christen
Astro-Physics


Re: Balance: what happens at Meridian flip?

Jeff B
 

👍

On Fri, Aug 6, 2021 at 4:27 PM Worsel via groups.io <bryancashion=yahoo.com@groups.io> wrote:
Tom

This question comes up over in general imaging forums.  Some 'interesting approaches arise.

See  https://www.cloudynights.com/topic/408507-mount-balance-meridian-flip-and-automation/

Thank you, Roland and A-P, for a more elegant solution!!
"Our mounts have spring loaded worms, so do not need to be unbalanced."

Bryan


Re: Winter project - Cradle of Starbirth

Eric Weiner
 

Roland,
At the risk of opening up a can of worms (sooo many opinions on this matter), do you mind if ask what the passband width of H-alpha filter you used for this image is?  It seems like it would necessarily need to be fairly wide with 10s subs.  But then again, M42 is pretty bright. 
 
Eric


Re: Balance: what happens at Meridian flip?

Worsel
 

Tom

This question comes up over in general imaging forums.  Some 'interesting approaches arise.

See  https://www.cloudynights.com/topic/408507-mount-balance-meridian-flip-and-automation/

Thank you, Roland and A-P, for a more elegant solution!!
"Our mounts have spring loaded worms, so do not need to be unbalanced."

Bryan


Re: Winter project - Cradle of Starbirth

Marcelo Figueroa
 

Fantastic image. It never ceases to amaze how much detail can be captured with Ha only.


Re: Balance: what happens at Meridian flip?

Roland Christen
 

Yes, even the 900/1200 had spring action in the gearbox mounting. Mach1 also.

Rolando



-----Original Message-----
From: Jeff B <mnebula946@...>
To: main@ap-gto.groups.io
Sent: Fri, Aug 6, 2021 2:19 pm
Subject: Re: [ap-gto] Balance: what happens at Meridian flip?

Roland, does that include the older mounts like the 900/1200 and Mach 1?

Jeff

On Fri, Aug 6, 2021 at 3:15 PM Roland Christen via groups.io <chris1011=aol.com@groups.io> wrote:
For Astro-Physics mounts best practice is to balance. Our mounts have spring loaded worms, so do not need to be unbalanced.

Rolando

-----Original Message-----
From: Tom Blahovici <tom.va2fsq@...>
To: main@ap-gto.groups.io
Sent: Fri, Aug 6, 2021 1:52 pm
Subject: [ap-gto] Balance: what happens at Meridian flip?

Hi
I have read that best practice is to have the balance heavier on the counterweight side when imaging to the east. Ok, makes sense.
However what happens at Meridian flip? It's now completely wrong.
Explanation?
Tom

--
Roland Christen
Astro-Physics

--
Roland Christen
Astro-Physics


Re: Balance: what happens at Meridian flip?

Jeff B
 

Roland, does that include the older mounts like the 900/1200 and Mach 1?

Jeff

On Fri, Aug 6, 2021 at 3:15 PM Roland Christen via groups.io <chris1011=aol.com@groups.io> wrote:
For Astro-Physics mounts best practice is to balance. Our mounts have spring loaded worms, so do not need to be unbalanced.

Rolando

-----Original Message-----
From: Tom Blahovici <tom.va2fsq@...>
To: main@ap-gto.groups.io
Sent: Fri, Aug 6, 2021 1:52 pm
Subject: [ap-gto] Balance: what happens at Meridian flip?

Hi
I have read that best practice is to have the balance heavier on the counterweight side when imaging to the east. Ok, makes sense.
However what happens at Meridian flip? It's now completely wrong.
Explanation?
Tom

--
Roland Christen
Astro-Physics


Re: Balance: what happens at Meridian flip?

Roland Christen
 

For Astro-Physics mounts best practice is to balance. Our mounts have spring loaded worms, so do not need to be unbalanced.

Rolando

-----Original Message-----
From: Tom Blahovici <tom.va2fsq@...>
To: main@ap-gto.groups.io
Sent: Fri, Aug 6, 2021 1:52 pm
Subject: [ap-gto] Balance: what happens at Meridian flip?

Hi
I have read that best practice is to have the balance heavier on the counterweight side when imaging to the east. Ok, makes sense.
However what happens at Meridian flip? It's now completely wrong.
Explanation?
Tom

--
Roland Christen
Astro-Physics


Balance: what happens at Meridian flip?

Tom Blahovici
 

Hi
I have read that best practice is to have the balance heavier on the counterweight side when imaging to the east. Ok, makes sense.
However what happens at Meridian flip? It's now completely wrong.
Explanation?
Tom


Re: Winter project - Cradle of Starbirth

Jeff B
 

Really nice Roland and one of my favorites too, in fact, the very first deep sky object I saw with my first telescope, a Sears 2" F11 achromat.

I've noticed that you and other skilled imagers manage to bring out a decided 3D effect on this nebula, almost like I'm peering down into it.

Thanks!

Jeff

On Fri, Aug 6, 2021 at 12:51 PM Roland Christen via groups.io <chris1011=aol.com@groups.io> wrote:
Just got around to processing my winter project. Images were taken back in February on one bitter cold clear night at our northern Illinois observatory.
This much-photographed object is still one of my favorites of the winter sky. It brings back fond memories of my youth, first observing it with a small 30mm achromat lens when I lived in Canada.


Rolando

--
Roland Christen
Astro-Physics


Winter project - Cradle of Starbirth

Roland Christen
 

Just got around to processing my winter project. Images were taken back in February on one bitter cold clear night at our northern Illinois observatory.
This much-photographed object is still one of my favorites of the winter sky. It brings back fond memories of my youth, first observing it with a small 30mm achromat lens when I lived in Canada.

https://www.astrobin.com/aqv6e3/0/

Rolando

--
Roland Christen
Astro-Physics


Re: 92mm Stowaway 4th Run Update

 

Hello,

 

Just a reminder for those who procrastinated – the deadline for completing the form is noon, central daylight savings time – TODAY!

 

Yes, I know the last week passed very quickly.

 

Clear Skies,

Marj Christen

Astro-Physics

11250 Forest Hills Road

Machesney Park, IL 61115

Phone: 815-282-1513

www.astro-physics.com

 

From: main@ap-ug.groups.io <main@ap-ug.groups.io> On Behalf Of Karen Christen
Sent: Friday, July 23, 2021 2:17 PM
To: ap-ug@groups.io
Subject: [ap-ug] 92mm Stowaway 4th Run Update

 

Hello Astro-Nuts,

The fourth production run of our 92mm f6.65 Stowaway is well underway and we have contacted all of the remaining people who had signed up on our notification list in April 2018.  Roland fulfilled his promise of making enough scopes for everyone who signed up the first time who wanted one.  We are producing more scopes that will need a good home. So, now what do we do? 

After much deliberation we’ve decided to offer the remaining scopes in a random-drawing format.  This is a departure from our usual processes, so we know you have questions.  We have answers:

Why can’t I just order one? We wanted to provide an equal opportunity to people who would really like to own and use this scope. If we simply opened our phone lines to take orders, it would favor people who live in particular time zones and only those who happened to hear about it. We anticipate that they would have sold out very quickly, possibly even before people on the other side of the globe were awake. Since we have an international following, we wanted to give everyone an opportunity.

What do you mean, random drawing?  For one week from Friday, July 30 to Friday, August 6 (12pm noon central daylight savings time), anyone can sign up on the 92mm Stowaway 2021 Random Drawing Entry form.  It does not matter when you sign up, as long as it’s within the sign-up window.  From this group of interested people, we will randomly choose the people who will be notified of the opportunity to purchase a 92mm Stowaway.

Why aren’t you just notifying people in order of when they signed up, like usual?  Traditionally we have collected names of those interested in a particular product in chronological order and notified folks of the opportunity to purchase the item in that order.  We’ve occasionally received criticism, most especially if the list is only open for a short time, from folks who were unaware of the list, on vacation, on the other side of the world and asleep when the list was open, etc.

We only have a limited number of Stowaways and wanted to give everyone an equal chance to purchase one.  With advanced notice and a one-week sign-up window, we hope to catch everyone who might be interested in this scope.

How do I sign up?  Go to the 92mm Stowaway 2021 Random Drawing Entry form and fill in all the required fields, including your name, phone number, email address and billing address.  The link to this form will be available on July 30th at noon on the Availability tab of the 92mm Stowaway website page: www.astro-physics.com/92f665

When can I sign up?  The 92mm Stowaway 2021 Random Drawing Entry form will be available from July 30 to August 6 (12pm noon central daylight savings time for both). 

Will I receive a confirmation of my sign-up?  Yes.  Following submission, a confirmation window will appear. Assuming that you provided a valid email address, you will also receive an auto-generated confirmation email with all of the information that you provided for your reference. If you do NOT receive a confirmation email, it may be in your spam folder or you may have entered an incorrect email address. 

When will I know if I was selected?  After the deadline, we will contact the people whose names we draw randomly from the entries. This process may take several months since we do not sell the final scopes in the run until they are completed. We will post periodic messages on the Availability tab of the 92mm Stowaway website page regarding the status of the drawing: www.astro-physics.com/92f665

When would I pay for my order?  The order process will remain the same as usual: Once you’re notified, you will have 2 weeks to decide whether to purchase and submit a 50% deposit.  At that time a scope will be reserved for you and we will provide an estimated date of delivery.

We wish you luck!

The Astro-Folks


Re: Mach2 runaway behavior

Luca Marinelli
 

Thank you for taking a look, Ray. Let me know if there is any data I can provide that would be helpful.

Luca

On Aug 6, 2021, at 9:30 AM, Ray Gralak via groups.io <iogroups=siriusimaging.com@groups.io> wrote:

Hi Luca,

For some reason, APCC thinks the Home operation failed. The slew to Home completed the move, but there was no attempt by APCC to sync the mount. I'm not sure why (yet).

-Ray

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Luca Marinelli
Sent: Thursday, August 5, 2021 7:43 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] Mach2 runaway behavior

The last few nights I have been experiencing runaway behavior with the Mach2 when the imaging sequence
starts in SGP. The target is in Cygnus, in the Eastern sky and when SGP issues the first slew the mount starts
rotating West in RA, Dec doesn't move, until it strikes the pier and motor stall errors start flying. At this point, I issue
a Find Home command and then start the sequence over and everything works properly. This is similar to
problems I had encountered when switching APCC Pro from the AP1100 to the Mach2. The solution there was to
delete the Settings file and start over, which I attempted today. Unfortunately, it didn't fix the problem. When I
launched the sequence, the mount slewed in RA only until the OTA hit the pier.

I have posted the APCC logs here:

https://www.dropbox.com/s/zjrzxw434ed9laz/ApccZip-Luca_Marinelli-2021-08-05-222758.zip?dl=0

Any suggestions or advice would be appreciated.

thanks,

Luca






Re: Mach2 runaway behavior

Ray Gralak
 

Hi Luca,

For some reason, APCC thinks the Home operation failed. The slew to Home completed the move, but there was no attempt by APCC to sync the mount. I'm not sure why (yet).

-Ray

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Luca Marinelli
Sent: Thursday, August 5, 2021 7:43 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] Mach2 runaway behavior

The last few nights I have been experiencing runaway behavior with the Mach2 when the imaging sequence
starts in SGP. The target is in Cygnus, in the Eastern sky and when SGP issues the first slew the mount starts
rotating West in RA, Dec doesn't move, until it strikes the pier and motor stall errors start flying. At this point, I issue
a Find Home command and then start the sequence over and everything works properly. This is similar to
problems I had encountered when switching APCC Pro from the AP1100 to the Mach2. The solution there was to
delete the Settings file and start over, which I attempted today. Unfortunately, it didn't fix the problem. When I
launched the sequence, the mount slewed in RA only until the OTA hit the pier.

I have posted the APCC logs here:

https://www.dropbox.com/s/zjrzxw434ed9laz/ApccZip-Luca_Marinelli-2021-08-05-222758.zip?dl=0

Any suggestions or advice would be appreciated.

thanks,

Luca


Re: New AP1100, indoor practice, lots of little questions

Ray Gralak
 

I would like to understand: Do we have a „Home“ function also for non encoder mounts? How is „software home“
implemented?
Yes, APCC has a Home function for non-encoder mounts, but to work homing requires that the scope not be moved by loosening the clutches. This should be the case at a remote site.

It works by saving the home position's RA and Dec angles, and allows recovery from such scenarios as:
* A bad sync/recal.
* Uncorrected time change/ bad time zone settings.
* Incorrect Latitude/Longitude configuration.
* Unparking from the wrong Park number (e.g. the mount is physically at Park position 3, but was unparked from a different park position number).

-Ray

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Horia
Sent: Thursday, August 5, 2021 2:12 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] New AP1100, indoor practice, lots of little questions

According to HKursh:



The 'HOME' button does not exist on a mount without AE. It is on the AE tab of APCC pro.




According to astro-physics.com ( https://www.astro-physics.com/apcc - Features --> APCC Standard ):



Added software home and limits function for all GTO mounts. Note: To avoid errors, this tab
will not appear if the mount has absolute encoders, which has its own separate hardware/software solution.


I would like to understand: Do we have a „Home“ function also for non encoder mounts? How is „software home“
implemented?



Kind regards,

Horia



Von: main@ap-gto.groups.io <main@ap-gto.groups.io> Im Auftrag von KHursh via groups.io
Gesendet: Sonntag, 1. August 2021 15:55
An: main@ap-gto.groups.io
Betreff: Re: [ap-gto] New AP1100, indoor practice, lots of little questions



The 'HOME' button does not exist on a mount without AE. It is on the AE tab of APCC pro.


Re: new user's Keypad ? #Keypad

Dean Jacobsen
 

One of the happiest days of my life was the day I sold my 10” x 42” ATS portable pier that I used for my 1200.  That was a heavy beast and I had to lift it up on the tailgate of my F350 4x4 and then down twice each trip.  The 1200 and the ATS pier were eventually downsized to a 900 and Losmandy HD pier when all of the heavy lifting got old… or I got old… or both.
--
Dean Jacobsen
Astrobin Image Gallery - https://www.astrobin.com/users/deanjacobsen/

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