Date   

Re: SH2 313 / Abell 35 – Low Surface Brightness Planetary Nebula with a Twist

Stuart Heggie <stuart.j.heggie@...>
 

VERY nice image Terry!!!

Stuart

On Thu, 20 Dec 2018 at 22:13, terry.robison@... [ap-gto] <ap-gto@...> wrote:
 

This is an image of a low surface planetary nebula.  


AstroBin link

https://www.astrobin.com/381414/?nc=user


Flickr link

https://www.flickr.com/photos/97807083@N00/46285431452/


Terry




Re: SH2 313 / Abell 35 – Low Surface Brightness Planetary Nebula with a Twist

Roland Christen
 

Excellent image! Great colors, very sharp.

Rolando



-----Original Message-----
From: terry.robison@... [ap-gto]
To: ap-gto
Sent: Thu, Dec 20, 2018 9:12 pm
Subject: [ap-gto] SH2 313 / Abell 35 – Low Surface Brightness Planetary Nebula with a Twist



This is an image of a low surface planetary nebula.  

AstroBin link

Flickr link

Terry



SH2 313 / Abell 35 – Low Surface Brightness Planetary Nebula with a Twist

Terry Robison
 

This is an image of a low surface planetary nebula.  


AstroBin link

https://www.astrobin.com/381414/?nc=user


Flickr link

https://www.flickr.com/photos/97807083@N00/46285431452/


Terry


Re: [ap-ug] New file uploaded to ap-ug

Roland Christen
 


from 630nm to 480nm is less than 0.2%
That should read 630 to 430nm. Sorry for the typo.

Rolando


-----Original Message-----
From: chris1011@... [ap-ug]
To: ap-ug ; ap-gto
Sent: Thu, Dec 20, 2018 7:05 pm
Subject: Re: [ap-ug] New file uploaded to ap-ug



Hello Astronuts,

I have uploaded an image comparing an uncoated polished lens element versus a finished multi-coated lens and the witness graph that goes with it.

Multi-coated lenses generally have two minima, one in the yellow and one in the blue with a slight rise of reflectivity in the middle green wavelengths. That's why some lenses have a faint greenish hue to them. Higher index glass can have other minima and can exhibit a different color hue. Note that the average reflectivity for the entire visual spectrum from 630nm to 480nm is less than 0.2% and even the slight peak in the green is still less than 1/10th that of an uncoated lens. Single layer coatings have about 2% reflectivity and can vary in color from straw yellow to light blue.

Rolando



-----Original Message-----
From: ap-ug
To: ap-ug
Sent: Thu, Dec 20, 2018 6:56 pm
Subject: [ap-ug] New file uploaded to ap-ug

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the ap-ug
group.

  File        : /92mmStowaway/Technical/Coatings.jpg
  Uploaded by : uncarollo2 <chris1011@...>
  Description : Lens coatings used on AP lenses showing 92mm Stowaway coated lens versus uncoated polished element.

You can access this file at the URL:

To learn more about file sharing for your group, please visit:

Regards,

uncarollo2 <chris1011@...>


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Re: [ap-ug] New file uploaded to ap-ug

Roland Christen
 

Hello Astronuts,

I have uploaded an image comparing an uncoated polished lens element versus a finished multi-coated lens and the witness graph that goes with it.

Multi-coated lenses generally have two minima, one in the yellow and one in the blue with a slight rise of reflectivity in the middle green wavelengths. That's why some lenses have a faint greenish hue to them. Higher index glass can have other minima and can exhibit a different color hue. Note that the average reflectivity for the entire visual spectrum from 630nm to 480nm is less than 0.2% and even the slight peak in the green is still less than 1/10th that of an uncoated lens. Single layer coatings have about 2% reflectivity and can vary in color from straw yellow to light blue.

Rolando



-----Original Message-----
From: ap-ug
To: ap-ug
Sent: Thu, Dec 20, 2018 6:56 pm
Subject: [ap-ug] New file uploaded to ap-ug

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the ap-ug
group.

  File        : /92mmStowaway/Technical/Coatings.jpg
  Uploaded by : uncarollo2 <chris1011@...>
  Description : Lens coatings used on AP lenses showing 92mm Stowaway coated lens versus uncoated polished element.

You can access this file at the URL:

To learn more about file sharing for your group, please visit:

Regards,

uncarollo2 <chris1011@...>


------------------------------------

------------------------------------


To UNSUBSCRIBE, or for general information on the ap-ug list
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Re: Ethernet for Mach 1?

jon swanson
 

Thanks!  I have it all working now.  


Re: Ethernet for Mach 1?

Ray Gralak
 

I do have the latest driver And I do not see the port there. Unless you are meaning the IP ADR check box where
an IP address is needed?
Yes, enable the "IP Addr" checkbox and enter the mount's IP address.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): http://www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc
Author of PEMPro V3: https://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver


-----Original Message-----
From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]
Sent: Tuesday, December 18, 2018 7:15 PM
To: ap-gto@yahoogroups.com
Subject: RE: [ap-gto] Ethernet for Mach 1?



I do have the latest driver And I do not see the port there. Unless you are meaning the IP ADR check box where
an IP address is needed?


Re: Ethernet for Mach 1?

jon swanson
 

I do have the latest driver  And I do not see the port there.  Unless you are meaning the IP ADR check box where an IP address is needed?


Re: Ethernet for Mach 1?

Ray Gralak
 

. On the ASCOM driver this port is not in there for options.
The option to connect via Ethernet to the driver is there. Make sure you have the latest version installed (v5.20.08) and have set the mount type in the driver's setup to "GTOCP4".

You can get the latest driver here:

https://www.siriusimaging.com/apdriver

-Ray Gralak
Author of APCC (Astro-Physics Command Center): http://www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc
Author of PEMPro V3: https://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver


-----Original Message-----
From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]
Sent: Tuesday, December 18, 2018 6:39 PM
To: ap-gto@yahoogroups.com
Subject: [ap-gto] Ethernet for Mach 1?



I was working on getting things going tonight for some practice. I am out of USB ports so I have to use the
ethernet. On the ASCOM driver this port is not in there for options. And it will not connect via Maxim due to this.
Is there something I am missing here to get the mount to communicate via ethernet?


Ethernet for Mach 1?

jon swanson
 

I was working on getting things going tonight for some practice.  I am out of USB ports so I have to use the ethernet.  On the ASCOM driver this port is not in there for options.  And it will not connect via Maxim due to this.  Is there something I am missing here to get the mount to communicate via ethernet?


Re: AC-DC Power supply for AP Mach1 GTO CP4

Diego Gomez
 

Hello All,

Well, the power supply won't be completed exposed to the elements. I will place it, along with another one which I use to power up all my other accessories, inside of a fishing box. When operating, these two power supply should produce enough heat to keep the box warm enough to avoid dew or frost around them.

I have seen many electronic components such as laptops, cameras, USB Hubs, autofocusers where their manufacturer state that the lowest operating temperature is zero degree celsius and yet we have been able to operate them below this value without problems. I guess, the real danger is to try to operate them if they are wet due to dew formation but the low temperature itself shouldn't be a problem.

Anyway, we will see how it will go!

Cheers,
Diego


Re: AC-DC Power supply for AP Mach1 GTO CP4

Joe Zeglinski
 

Ron,
 
    Your linked article describes their product as strictly a “BENCH TOP switching power supply”, with no mention  of its operating temperature range, (obviously, not required), if used outdoors – or even if is safe to do so. The specs only mention “over temperature” protection by an automatic fan, but what about warranty at below freezing?
 
    Guess, as usual, we astronomy hobbyists just take our chances with consumer use intended products. But, having operating temperature specs would be more reassuring, and even protect the company from legal liability.
 
    Actually, it looks similar to the Powerwrx supply. Maybe it is a relabelled version.
 
Joe


Re: AC-DC Power supply for AP Mach1 GTO CP4

Ron Kramer
 

You could - I'd pass
I use these. 
https://www.circuitspecialists.com/csi25sw-d.html


On Fri, Dec 14, 2018 at 1:35 AM Carl cbfuture2061@... [ap-gto] <ap-gto@...> wrote:
 

I have very successfully used a boat dehumidifier for 10 years in my rolling roof observatory. 

Carl 

. Fantastical interpretations of my perfect spelling courtesy of Apple. 


On Dec 13, 2018, at 7:18 PM, Christopher Erickson christopher.k.erickson@... [ap-gto] <ap-gto@...> wrote:

 


On Thu, Dec 13, 2018 at 5:03 PM biker123@... [ap-gto] <ap-gto@...> wrote:


Not sure about an aquarium heater....wouldn't that need to sit in water?  I have used a gun safe heater to keep areas under cover warmer and fight condensation. They are pretty cheap (around $25) and are simply a 1' piece of aluminum tubing about 1" in diameter with a heating element inside. There is no adjustment for heat but the standard setting works fine.  Bear in mind if you have this or any heat source in the vicinity of the telescope the heat currents may mess up your seeing. 


Configuring FLI KL4040 Camera with 130GTX130, FLI FW, MOAG guider with helical focuser, F67 field flattener

Wayne Hixson
 

We configured the subject combination without the 21mm FF extension for 101mm between the FF and the camera chip and Precise Parts adapters. However the adapter between the front of the FW and the F67 FF was so short the FF threadedend impinged on the MOAG prism before halfway threaded. Anyone else configured this arrangement successfully?


Re: Heart Nebula

Bill Long
 

Thanks. I did some touch up work on the last revision on that page. Cleaned things up pretty nicely. All in all, I am pleased with this one and hopefully my mother enjoys the framed image under the tree. 😊


From: ap-gto@... <ap-gto@...> on behalf of PEREZ, José Joaquín cotejardinero@... [ap-gto] <ap-gto@...>
Sent: Friday, December 14, 2018 11:56 AM
To: tekic545@... [ap-gto]
Subject: Re: [ap-gto] Heart Nebula
 
 

Hello Bill, very nice and love the color pallete!

Best regards,

El jue., 13 dic. 2018 a las 3:46, Bill Long bill@... [ap-gto] (<ap-gto@...>) escribió:
 

Hello Astro Friends,

 I come back to you with another image. This was the main attraction in the last pass of good weather we had, and the subject of a post I did about background extraction. Winter in the PNW is unforgiving, and when you get a night to image, you take what you can get. This here is the Heart Nebula with about 12 hours of total integration time. This was taken with the AP 130GTX, FLI ML16200 camera, and AP1100 mount with APCC Pro and a 90 point model in APPM. 

The rest of the details are on Astrobin, I hope you all enjoy this. Happy Holidays!


Clear Skies!

Bill 



--


Re: Heart Nebula

Jos� Joaqu�n P�rez Guy
 

Hello Bill, very nice and love the color pallete!

Best regards,


El jue., 13 dic. 2018 a las 3:46, Bill Long bill@... [ap-gto] (<ap-gto@...>) escribió:
 

Hello Astro Friends,

 I come back to you with another image. This was the main attraction in the last pass of good weather we had, and the subject of a post I did about background extraction. Winter in the PNW is unforgiving, and when you get a night to image, you take what you can get. This here is the Heart Nebula with about 12 hours of total integration time. This was taken with the AP 130GTX, FLI ML16200 camera, and AP1100 mount with APCC Pro and a 90 point model in APPM. 

The rest of the details are on Astrobin, I hope you all enjoy this. Happy Holidays!


Clear Skies!

Bill 



Re: AC-DC Power supply for AP Mach1 GTO CP4

Carl Brosius
 

I have very successfully used a boat dehumidifier for 10 years in my rolling roof observatory. 
Carl 

. Fantastical interpretations of my perfect spelling courtesy of Apple. 


On Dec 13, 2018, at 7:18 PM, Christopher Erickson christopher.k.erickson@... [ap-gto] <ap-gto@...> wrote:

 


On Thu, Dec 13, 2018 at 5:03 PM biker123@... [ap-gto] <ap-gto@...> wrote:


Not sure about an aquarium heater....wouldn't that need to sit in water?  I have used a gun safe heater to keep areas under cover warmer and fight condensation. They are pretty cheap (around $25) and are simply a 1' piece of aluminum tubing about 1" in diameter with a heating element inside. There is no adjustment for heat but the standard setting works fine.  Bear in mind if you have this or any heat source in the vicinity of the telescope the heat currents may mess up your seeing. 


Re: AC-DC Power supply for AP Mach1 GTO CP4

Roland Christen
 

I like to run all my stuff at 12 volts, so I would just use a Kendricks dew heater strap and wrap it around anything that I want to warm up. Set the control to a low setting and it will keep things from freezing.

Rolando



-----Original Message-----
From: Mike Dodd mike@... [ap-gto]
To: ap-gto
Sent: Thu, Dec 13, 2018 9:46 pm
Subject: [ap-gto] Re: AC-DC Power supply for AP Mach1 GTO CP4

On 12/13/2018 10:02 PM, biker123@... [ap-gto] wrote:
>
>
> Not sure about an aquarium heater....wouldn't that need to sit in
> water?

I wrote "terrarium" not "aquarium." See the photo I linked to. This is a
ceramic disk with an embedded heating element that screws into a
standard light socket.

--- Mike




------------------------------------
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Re: AC-DC Power supply for AP Mach1 GTO CP4

Roland Christen
 

Oh My! That sure looks crispy.

Rolando



-----Original Message-----
From: Christopher Erickson christopher.k.erickson@... [ap-gto]
To: ap-gto
Sent: Thu, Dec 13, 2018 9:18 pm
Subject: Re: [ap-gto] Re: AC-DC Power supply for AP Mach1 GTO CP4




On Thu, Dec 13, 2018 at 5:03 PM biker123@... [ap-gto] <ap-gto@...> wrote:


Not sure about an aquarium heater....wouldn't that need to sit in water?  I have used a gun safe heater to keep areas under cover warmer and fight condensation. They are pretty cheap (around $25) and are simply a 1' piece of aluminum tubing about 1" in diameter with a heating element inside. There is no adjustment for heat but the standard setting works fine.  Bear in mind if you have this or any heat source in the vicinity of the telescope the heat currents may mess up your seeing. 




Re: AC-DC Power supply for AP Mach1 GTO CP4

Christopher Erickson
 

And yes, I know that the original poster mentioned terrarium heater, not aquarium heater.  Completely different thing.
 
My comment is specifically related to aquarium heaters since they were mentioned in a reply.
 
 
-Christopher Erickson
Observatory engineer
Summit Kinetics
Waikoloa, HI 96738
www.summitkinetics.com
 



From: Christopher Erickson [mailto:christopher.k.erickson@...]
Sent: Thursday, December 13, 2018 5:18 PM
To: ap-gto@...
Subject: Re: [ap-gto] Re: AC-DC Power supply for AP Mach1 GTO CP4


On Thu, Dec 13, 2018 at 5:03 PM biker123@... [ap-gto] <ap-gto@...> wrote:


Not sure about an aquarium heater....wouldn't that need to sit in water?  I have used a gun safe heater to keep areas under cover warmer and fight condensation. They are pretty cheap (around $25) and are simply a 1' piece of aluminum tubing about 1" in diameter with a heating element inside. There is no adjustment for heat but the standard setting works fine.  Bear in mind if you have this or any heat source in the vicinity of the telescope the heat currents may mess up your seeing. 


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