Date   

Basic guidelines for narrowband imaging +/- Full Moon

Ted Mickle
 

I’d like to do some 3nm H-alpha imaging about 30 degrees away from the Moon tonight at 1,000mm focal length.

Does anyone have rough guidance on narrowband imaging when dealing with a Full Moon? In other words, how bandpass, focal length and angular separation can be quantified for each of the narrowband filters?

Any guidance is appreciated.

Ted


Re: Stowaway 4th Run is Complete

Karen Christen
 

Emilio and other Astro-Nuts,

 

At present I don’t have any exciting news to share.  We’re currently working on a run of 130GTX scopes.  The notification list for that scope has been closed for the last 3 or 4 years.  If you signed up on that list (via our old system) you would have received a confirmation email that your sign-up was received.  Notifications will begin in the next month or two. 

Karen

AP

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Emilio J. Robau, P.E.
Sent: Monday, January 17, 2022 12:47 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Stowaway 4th Run is Complete

 

Thanks for the update Karen.....The question in everyone's mind is what's next?  130, New Travelers, OMG! Macks really?, or nothing with glass inside?   This is the one and only item/organization in the entire world where I could be considered a groopie.  Herein defined as a person, especially a young woman, who regularly follows a pop music group or other celebrity in the hope of meeting or getting to know them.  Yes, Roland is a celebrity and the rest of the staff is appreciated for sure. 

However, I am not a female, and my groupiesm is targeted towards garnering another scope and mount.   I don't necessarily need to meet anyone, although that may be good sometime.   Maybe an aficionado is a better characterization of my particular behavior pattern.

I think there is keen interest in what is next.  If the answer is home sweet home, Hawaii, travel, dog loving, family visiting, relaxation and so on and so forth, then that is okay also, I am nearing that point in life myself.   It has been a spectacular run, and there are a lot of us out there that hope it continues into many future generations.

So, what next?  It is okay if there is no response.  A response would be very gratifying to the Astronut groupies, I mean aficionados.

PS. Thanks for the Stowaway.


--
Karen Christen
Astro-Physics


Re: Stowaway 4th Run is Complete

ap@CaptivePhotons.com
 

On Mon, Jan 17, 2022 at 01:46 PM, Emilio J. Robau, P.E. wrote:
The question in everyone's mind is what's next? 
I really NEED a 150mm-is refractor.

Of course, someone will say I just want one, but pretty sure it's a NEED.

Just saying.

Linwood


Re: Stowaway 4th Run is Complete

Emilio J. Robau, P.E.
 

Thanks for the update Karen.....The question in everyone's mind is what's next?  130, New Travelers, OMG! Macks really?, or nothing with glass inside?   This is the one and only item/organization in the entire world where I could be considered a groopie.  Herein defined as a person, especially a young woman, who regularly follows a pop music group or other celebrity in the hope of meeting or getting to know them.  Yes, Roland is a celebrity and the rest of the staff is appreciated for sure. 

However, I am not a female, and my groupiesm is targeted towards garnering another scope and mount.   I don't necessarily need to meet anyone, although that may be good sometime.   Maybe an aficionado is a better characterization of my particular behavior pattern.

I think there is keen interest in what is next.  If the answer is home sweet home, Hawaii, travel, dog loving, family visiting, relaxation and so on and so forth, then that is okay also, I am nearing that point in life myself.   It has been a spectacular run, and there are a lot of us out there that hope it continues into many future generations.

So, what next?  It is okay if there is no response.  A response would be very gratifying to the Astronut groupies, I mean aficionados.

PS. Thanks for the Stowaway.


Stowaway 4th Run is Complete

Karen Christen
 

As promised, we’re updating you regarding the status of the 4th run of 92mm Stowaways. 

What's the status?  We have sold and shipped all of the Stowaways from this production run. 

Will you make more Stowaways?  We have not made a decision about producing more Stowaways. It is unlikely that we will have more available this year. If we do make more, we will continue to draw names from the lottery entries. 

Thank you for your interest in this scope.  We’ll continue to update the user groups if things change.

Karen

AP

 


--
Karen Christen
Astro-Physics


Re: old ap900 gto mount

thefamily90 Phillips
 

I agree. I have an AP 900 goto which I have had for many years although I am not sure when it was made and it works perfectly! Astro-physics quality.

JimP 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Chris White <chris.white@...>
Sent: Sunday, January 16, 2022 11:36:10 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] old ap900 gto mount
 

[Edited Message Follows]

Another vote of confidence for the 900GTO.  Mine is from 2009 and performs brilliantly. I've got 61 pounds on it with a side by side setup.   I'm also using apcc pro, which I couldn't live without now. 

I recently updated my pempro curve and found that the mount's native periodic error was under 4 arc seconds peak to peak.  After PEC, periodic error dropped to 0.2".


APCC pro replication to backup computer

Sam
 

Hi

i have a primary computer with APCC pro where I set up my horizon and did a pointing model.

i also have have a backup computer which I keep up to date so that it can be used if the primary computer fails.  Is there a way to replicate APCC pro in the backup computer with all its data from horizons, pointing model etc

thanks
sam


Re: old ap900 gto mount

Chris White
 
Edited

Another vote of confidence for the 900GTO.  Mine is from 2009 and performs brilliantly. I've got 61 pounds on it with a side by side setup.   I'm also using apcc pro, which I couldn't live without now. 

I recently updated my pempro curve and found that the mount's native periodic error was under 4 arc seconds peak to peak.  After PEC, periodic error dropped to 0.2".


Re: S&T image from AP900

Karen Christen
 

Congratulations, Nick!

Karen

AP

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of sydney77 via groups.io
Sent: Saturday, January 15, 2022 4:05 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] S&T image from AP900

 

[Edited Message Follows]

Hi,

My image of galaxy cluster Abell 1185 appears in an article on William and Caroline Herschel in the March 2022 edition of Sky & Telescope (pp 22-27, image on page 25). The image was taken through a C14 Edge on my AP900GTO mount.

Thank you Astro-Physics!

Nick Pavelchak

Astrobin image: https://www.astrobin.com/ski07p/


--
Karen Christen
Astro-Physics


Re: S&T image from AP900

sydney77@...
 

Thank you Roberto!  I appreciate your nice comment.


Re: S&T image from AP900

sydney77@...
 

Hi Luca.  Nice to hear from you.  Thanks!


Re: ASCOM Driver "freezing"?

Ray Gralak
 

Thanks everyone. I probably clicked on the wrong thing by the time I added it to the cart. I do have an FTDI
based cable (as confirmed by Device Manager and the installed driver) and experienced the same problem,
but it wasn't the AP cable. Will get the AP one when it's back in stock. Is it really only 10cm long? Do you
plug that into an active USB extension cable or a powered hub to get the required distance to the rest of your
stuff?
It is better to connect the USB/serial converter directly to a USB port on your computer and run a Male-Female DB9 cable of the needed length from the converter to the mount.

The DB9 cable can be much longer (100+ feet), and, of course, you won't need a USB extender!

-Ray

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of wbelhaven via groups.io
Sent: Sunday, January 16, 2022 9:09 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] ASCOM Driver "freezing"?

Thanks everyone. I probably clicked on the wrong thing by the time I added it to the cart. I do have an FTDI
based cable (as confirmed by Device Manager and the installed driver) and experienced the same problem,
but it wasn't the AP cable. Will get the AP one when it's back in stock. Is it really only 10cm long? Do you
plug that into an active USB extension cable or a powered hub to get the required distance to the rest of your
stuff?


Re: Ap1100 squealing at -30C

Harley Davidson
 

I do the same thing at -30C Sam :) 

tony

On 1/16/2022 11:09 AM, Sam wrote:

Hi,

I did a 200 point model yesterday with my new AP1100 yesterday while the moon was out.  It dropped to -30C.  It was very effective with an average duration of 35 sec / point and no failed points.
This improved Guiding and pointing accuracy.

However, the temperature was so cold that the mount was squealing - see video.   I had max slew speed set to 900.  I can understand the motors making more noise as they work to overcome higher viscosity.  But there is also a sound which appears to be some form
of resonance - I wonder if the worm mesh is too tight.   I had a similar sound on an IOPTRON mount which I resolved by loosening the gears-worm tightness.

Any advice on whether I need to do anything would be appreciated (I realize that this is very cold and would require different grease etc)

thanks
Sam



Re: ASCOM Driver "freezing"?

wbelhaven
 

Thanks everyone. I probably clicked on the wrong thing by the time I added it to the cart. I do have an FTDI based cable (as confirmed by Device Manager and the installed driver) and experienced the same problem, but it wasn't the AP cable. Will get the AP one when it's back in stock. Is it really only 10cm long? Do you plug that into an active USB extension cable or a powered hub to get the required distance to the rest of your stuff?


Re: ASCOM Driver "freezing"?

Tom Blahovici
 

Be careful of cheap Amazon usb to serial. Some say they are ftdi but aren't.
Avoid garbage and buy from astro-physics or get a tripplite one. 
73


Re: ASCOM Driver "freezing"?

Mike Dodd
 

On 1/16/2022 11:14 AM, Tom Blahovici wrote:
In your first post you say you have an ftdi chipset but here you are modifying a prolific driver. Get a real ftdi usb to Seri port. Prolific ports can be problematic.
I'll definitely second that! I've had multiple issues with several Prolific USB/serial devices over the years (astronomy and ham radio), and all the problems disappeared immediately after I replaced the devices with FTDI dongles and installed the official FTDI drivers.


Re: ASCOM Driver "freezing"?

Tom Blahovici
 

In your first post you say you have an ftdi chipset but here you are modifying a prolific driver. Get a real ftdi usb to Seri port. Prolific ports can be problematic. Also, setting nothing in the control panel will do nothing. It's application based.


Ap1100 squealing at -30C

Sam
 

Hi,

I did a 200 point model yesterday with my new AP1100 yesterday while the moon was out.  It dropped to -30C.  It was very effective with an average duration of 35 sec / point and no failed points.
This improved Guiding and pointing accuracy.

However, the temperature was so cold that the mount was squealing - see video.   I had max slew speed set to 900.  I can understand the motors making more noise as they work to overcome higher viscosity.  But there is also a sound which appears to be some form
of resonance - I wonder if the worm mesh is too tight.   I had a similar sound on an IOPTRON mount which I resolved by loosening the gears-worm tightness.

Any advice on whether I need to do anything would be appreciated (I realize that this is very cold and would require different grease etc)

thanks
Sam


Re: S&T image from AP900

R Botero
 

I remember when you posted that shot Nick. It is superb. 

Roberto


Re: S&T image from AP900

Luca Marinelli
 

That’s a great image, Nick. Congratulations!

Luca 

On Jan 15, 2022, at 5:23 PM, sydney77 via groups.io <sydney77@...> wrote:



[Edited Message Follows]

Hi,

My image of galaxy cluster Abell 1185 appears in an article on William and Caroline Herschel in the March 2022 edition of Sky & Telescope (pp 22-27, image on page 25). The image was taken through a C14 Edge on my AP900GTO mount.

Thank you Astro-Physics!

Nick Pavelchak

Astrobin image: https://www.astrobin.com/ski07p/

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