Date   

Re: Cable and Systems Management

Michael Turner
 

Christopher,

The pic did not make it through...

Michael


At 07:43 PM 1/20/2017, you wrote:
 

I took a small 12V, USB3 hub that had enough room to mount a 4-port
PowerPole panel in it's side. I beefed-up the 12V power to the hub and also
added a few more filter caps to the USB electronics. That gets me down to
two cables through my Mach1. USB3 and 12VDC. Before I added the extra
filter caps, cycling on the camera's Peltier cooler would reboot the USB3
hub.

I attached a pic, if it comes through.


Christopher Erickson
Consulting Engineer
Summit Kinetics
Waikoloa, HI 96738
www.summitkinetics.com

_____

From: ap-gto@... [ mailto:ap-gto@...]
Sent: Wednesday, January 18, 2017 5:48 PM
To: ap-gto@...
Subject: [ap-gto] Cable and Systems Management

With the rapid growth of computer-aided astronomy - multi-camera Imaging,
USB hubs, mount controllers, guiding, focusing, anti-dew systems, modeling
and pointing etc - the complexity of managing all the systems and
connections to what is a moving system has also grown. The thru-the-mount
design of the new AP mounts was a great improvement and its's really helped
with my 1100. However it is still difficult to Quickly reconfigure your
system and I have started to see clever folks address this by moving more of
their electronics like signal and power hubs "above the mount" I'd call it.

Along these lines, I was thinking of adding a plate on top of the telescope
rings and mounting my Rigrunner, USB hub, and Dew controller on the plate.
Then I would run only one power line and one USB cable thru the mount to the
Rigrunner and USB hub respectively. From there I'd run short connections to
the hardware.

I'd like others thoughts on this, especially from those who have tried
something like this, and how it's worked out? Pictures of your Systems would
be welcome!

Thanks!

Wayne

[Non-text portions of this message have been removed]



Re: Cable and Systems Management

D Sidote <dsidote@...>
 

Just out of curiosity, why wouldn't making a 4-way pigtail with power poles be an option? You would still have one cable though the mount for power and not have the additional weight of the rig runner mounted on top of the scope.

On Fri, Jan 20, 2017 at 10:41 PM, Don Anderson jockey_ca@... [ap-gto] <ap-gto@...> wrote:
 

David
Add to the wish list to be able to remotely switch each of the USB ports on or off via a windows software app
 
Don Anderson



From: "David phrosty5@... [ap-gto]" <ap-gto@...>
To: ap-gto@...
Sent: Friday, January 20, 2017 8:45 PM
Subject: Re: [ap-gto] Cable and Systems Management

 
Joe,

I have looked at these.  Actually I have a different Kendrick box.  They work great, but are way too bulky to mount on top of a mount/scope, and they don’t have enough power ports for all my devices.  The Blue Astro Hub was a PCB solution that would have been small.  Still looking for someone to implement a PCB based solution for this.  I’ve seen one device that comes close, but the individual Powerpole circuits are not individually protected and isolated from each other.  I’m afraid of power spikes from dew heaters, pelters, etc. causing potential issues with a camera if using this.  http://www.modernroboticsinc.com/core-power-distribution-module-3  Closest thing I’ve found to what I’m looking for though.

Would love to see some astro manufacturer put something like this into a low profile saddle.  6 or 7 power ports on one side, 7 USB ports on the other side.  Then you’d only have two cables running through the mount.

David







On Jan 20, 2017, at 1:08 AM, 'Joseph Zeglinski' J.Zeglinski@... [ap-gto] <ap-gto@...> wrote:


David,
 
    Have a look at the KENDRICK all-in-one power boxes. However, it doesn’t have “remote controlled” power option yet.
I think it is an interesting integration of PowerPole box and USB, and cigarette lighter plugs. Even has an option for one of the sockets to be an AP mount 15 vdc power. Don’t know if it is bulkier than the “Blue Astro Hub” intended product – you decide.
 
 
HTH
Joe
 
 
From: David phrosty5@... [ap-gto]
Sent: Thursday, January 19, 2017 11:59 PM
Subject: Re: [ap-gto] Cable and Systems Management
 


Ive tried the same thing as well with a top plate, Powerpole box and USB hub from Startech.  It seems to work well, but is a much larger setup than should be necessary.  I’m still surprised, with tech advancing as fast as it has, that no one has come up with a great solution for a small, compact setup for power and data connections like the Blue Astro Hub that was in the works before Per passed away this past summer.  That was the most compact setup I’ve seen yet for remotely controlled power and USB connections, but its currently unavailable.  I am longing for a solution like this in one SMALL device or saddle.  Rig runners work great but are three times larger than they need to be for astro work and power requirements.  -sigh- 
 
David
 






Re: Cable and Systems Management

Don Anderson
 

David
Add to the wish list to be able to remotely switch each of the USB ports on or off via a windows software app
 
Don Anderson



From: "David phrosty5@... [ap-gto]"
To: ap-gto@...
Sent: Friday, January 20, 2017 8:45 PM
Subject: Re: [ap-gto] Cable and Systems Management

 
Joe,

I have looked at these.  Actually I have a different Kendrick box.  They work great, but are way too bulky to mount on top of a mount/scope, and they don’t have enough power ports for all my devices.  The Blue Astro Hub was a PCB solution that would have been small.  Still looking for someone to implement a PCB based solution for this.  I’ve seen one device that comes close, but the individual Powerpole circuits are not individually protected and isolated from each other.  I’m afraid of power spikes from dew heaters, pelters, etc. causing potential issues with a camera if using this.  http://www.modernroboticsinc.com/core-power-distribution-module-3  Closest thing I’ve found to what I’m looking for though.

Would love to see some astro manufacturer put something like this into a low profile saddle.  6 or 7 power ports on one side, 7 USB ports on the other side.  Then you’d only have two cables running through the mount.

David







On Jan 20, 2017, at 1:08 AM, 'Joseph Zeglinski' J.Zeglinski@... [ap-gto] <ap-gto@...> wrote:


David,
 
    Have a look at the KENDRICK all-in-one power boxes. However, it doesn’t have “remote controlled” power option yet.
I think it is an interesting integration of PowerPole box and USB, and cigarette lighter plugs. Even has an option for one of the sockets to be an AP mount 15 vdc power. Don’t know if it is bulkier than the “Blue Astro Hub” intended product – you decide.
 
 
HTH
Joe
 
 
From: David phrosty5@... [ap-gto]
Sent: Thursday, January 19, 2017 11:59 PM
Subject: Re: [ap-gto] Cable and Systems Management
 


Ive tried the same thing as well with a top plate, Powerpole box and USB hub from Startech.  It seems to work well, but is a much larger setup than should be necessary.  I’m still surprised, with tech advancing as fast as it has, that no one has come up with a great solution for a small, compact setup for power and data connections like the Blue Astro Hub that was in the works before Per passed away this past summer.  That was the most compact setup I’ve seen yet for remotely controlled power and USB connections, but its currently unavailable.  I am longing for a solution like this in one SMALL device or saddle.  Rig runners work great but are three times larger than they need to be for astro work and power requirements.  -sigh- 
 
David
 





Re: Cable and Systems Management

David
 

Joe,

I have looked at these.  Actually I have a different Kendrick box.  They work great, but are way too bulky to mount on top of a mount/scope, and they don’t have enough power ports for all my devices.  The Blue Astro Hub was a PCB solution that would have been small.  Still looking for someone to implement a PCB based solution for this.  I’ve seen one device that comes close, but the individual Powerpole circuits are not individually protected and isolated from each other.  I’m afraid of power spikes from dew heaters, pelters, etc. causing potential issues with a camera if using this.  http://www.modernroboticsinc.com/core-power-distribution-module-3  Closest thing I’ve found to what I’m looking for though.

Would love to see some astro manufacturer put something like this into a low profile saddle.  6 or 7 power ports on one side, 7 USB ports on the other side.  Then you’d only have two cables running through the mount.

David







On Jan 20, 2017, at 1:08 AM, 'Joseph Zeglinski' J.Zeglinski@... [ap-gto] <ap-gto@...> wrote:


David,
 
    Have a look at the KENDRICK all-in-one power boxes. However, it doesn’t have “remote controlled” power option yet.
I think it is an interesting integration of PowerPole box and USB, and cigarette lighter plugs. Even has an option for one of the sockets to be an AP mount 15 vdc power. Don’t know if it is bulkier than the “Blue Astro Hub” intended product – you decide.
 
 
HTH
Joe
 
 
From: David phrosty5@... [ap-gto]
Sent: Thursday, January 19, 2017 11:59 PM
Subject: Re: [ap-gto] Cable and Systems Management
 


Ive tried the same thing as well with a top plate, Powerpole box and USB hub from Startech.  It seems to work well, but is a much larger setup than should be necessary.  I’m still surprised, with tech advancing as fast as it has, that no one has come up with a great solution for a small, compact setup for power and data connections like the Blue Astro Hub that was in the works before Per passed away this past summer.  That was the most compact setup I’ve seen yet for remotely controlled power and USB connections, but its currently unavailable.  I am longing for a solution like this in one SMALL device or saddle.  Rig runners work great but are three times larger than they need to be for astro work and power requirements.  -sigh- 
 
David
 



Re: Cable and Systems Management

Barry Megdal
 

Sorry -- I don't know.  I have never had a reason to do that test.

- Barry


Re: Cable and Systems Management

Christopher Erickson
 

I took a small 12V, USB3 hub that had enough room to mount a 4-port
PowerPole panel in it's side. I beefed-up the 12V power to the hub and also
added a few more filter caps to the USB electronics. That gets me down to
two cables through my Mach1. USB3 and 12VDC. Before I added the extra
filter caps, cycling on the camera's Peltier cooler would reboot the USB3
hub.

I attached a pic, if it comes through.


Christopher Erickson
Consulting Engineer
Summit Kinetics
Waikoloa, HI 96738
www.summitkinetics.com



_____

From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]
Sent: Wednesday, January 18, 2017 5:48 PM
To: ap-gto@yahoogroups.com
Subject: [ap-gto] Cable and Systems Management





With the rapid growth of computer-aided astronomy - multi-camera Imaging,
USB hubs, mount controllers, guiding, focusing, anti-dew systems, modeling
and pointing etc - the complexity of managing all the systems and
connections to what is a moving system has also grown. The thru-the-mount
design of the new AP mounts was a great improvement and its's really helped
with my 1100. However it is still difficult to Quickly reconfigure your
system and I have started to see clever folks address this by moving more of
their electronics like signal and power hubs "above the mount" I'd call it.




Along these lines, I was thinking of adding a plate on top of the telescope
rings and mounting my Rigrunner, USB hub, and Dew controller on the plate.
Then I would run only one power line and one USB cable thru the mount to the
Rigrunner and USB hub respectively. From there I'd run short connections to
the hardware.




I'd like others thoughts on this, especially from those who have tried
something like this, and how it's worked out? Pictures of your Systems would
be welcome!




Thanks!




Wayne


Re: Cable and Systems Management

Don Anderson
 

I understand that but does the B&B hub pass the PC power through to the devices even if the hub power is not connected? 
 
Don Anderson



From: "bmegdal@... [ap-gto]"
To: ap-gto@...
Sent: Friday, January 20, 2017 5:49 PM
Subject: Re: [ap-gto] Re: Cable and Systems Management

 
It is a powered hub, so it provides its own power to the USB devices.

- Barry



Re: Cable and Systems Management

Barry Megdal
 

It is a powered hub, so it provides its own power to the USB devices.

- Barry


Re: Cable and Systems Management

Don Anderson
 

Barry
Does the UHR207 allow USB power from the computer to pass through to the devices?
 
Don Anderson



From: "'Barry Megdal' bmegdal@... [ap-gto]"
To: ap-gto@...
Sent: Friday, January 20, 2017 10:54 AM
Subject: [ap-gto] Re: Cable and Systems Management

 
 
It has very nice high retention-force USB connectors as well, making it less likely a cable will come out unexpectedly.
 
-          Barry
 
Dr. Barry Megdal
 
President
Shb Instruments, Inc.
19215 Parthenia St., Suite A
Northridge, CA 91324
(818) 773-2000 (818) 773-2005 fax
 
Faculty
Dept. of Electrical Engineering
California Institute of Technology
Pasadena, CA
bmegdal@... (use either email)
 



Re: Automatic mesh on 1100 GT

George
 

Bryan,

 

It would be easiest to call me and I can walk you through the gear meshing technique that is appropriate for your mount.   It is very simple.    No keypad is needed.  

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-282-1513

Email:  george@...

 

From: ap-gto@... [mailto:ap-gto@...]
Sent: Friday, January 20, 2017 11:52 AM
To: ap-gto@...
Subject: [ap-gto] Automatic mesh on 1100 GT

 

 

Rolando

 

Do all 1100 GT mounts have auto gear mesh or only those made after a certain serial number?  If the latter, what is the critical S/N?

 

If there are some 1100 GT mounts that have manual re-meshing, how is this done when I have no Keypad?

 

The procedure described in LINK assumes the presence of the Keypad.

 

Bryan



---In ap-gto@..., <chris1011@...> wrote :

...

All our new mounts (Mach1, 1100, 1600) now have automatic mesh and do not require periodic re-meshing. You can also release the worm gear from the worm wheel to do critical balancing of the axes, plus we have gone to a special alloy worm gear that has very low wear even when it is being slewed repeatedly. 

Most of the older mounts (that do not have the newest auto-mesh gearboxes) have an easy mesh routine that simply requires loosening and re-tightening a couple of screws on the motor box. This procedure is explained on our website. If you have one of these mounts, it is a good idea to periodically check both axes for proper mesh. On these mounts the worms do wear depending on how much slewing around you do, and depending on how much weight it is carrying. It's a lot like tire pressure on a car, if you don't check it now and then, you could be surprised by a flat.

Rolando

 


Re: Cable and Systems Management

Barry Megdal
 

It is the UHR207 from http://www.bb-elec.com/Products/USB-Connectivity/USB-2-0-Hubs/Industrial-Grade-USB-Hubs.aspx

 

It has very nice high retention-force USB connectors as well, making it less likely a cable will come out unexpectedly.

 

-          Barry

 

Dr. Barry Megdal

 

President

Shb Instruments, Inc.

19215 Parthenia St., Suite A

Northridge, CA 91324

www.shbinstruments.com

(818) 773-2000 (818) 773-2005 fax

bmegdal@...

 

Faculty

Dept. of Electrical Engineering

California Institute of Technology

Pasadena, CA

bmegdal@... (use either email)

 


Automatic mesh on 1100 GT

Worsel
 

Rolando


Do all 1100 GT mounts have auto gear mesh or only those made after a certain serial number?  If the latter, what is the critical S/N?

If there are some 1100 GT mounts that have manual re-meshing, how is this done when I have no Keypad?

The procedure described in LINK assumes the presence of the Keypad.

Bryan



---In ap-gto@..., <chris1011@...> wrote :

...

All our new mounts (Mach1, 1100, 1600) now have automatic mesh and do not require periodic re-meshing. You can also release the worm gear from the worm wheel to do critical balancing of the axes, plus we have gone to a special alloy worm gear that has very low wear even when it is being slewed repeatedly. 

Most of the older mounts (that do not have the newest auto-mesh gearboxes) have an easy mesh routine that simply requires loosening and re-tightening a couple of screws on the motor box. This procedure is explained on our website. If you have one of these mounts, it is a good idea to periodically check both axes for proper mesh. On these mounts the worms do wear depending on how much slewing around you do, and depending on how much weight it is carrying. It's a lot like tire pressure on a car, if you don't check it now and then, you could be surprised by a flat.

Rolando



Re: Image Link Test button with APPM version 1.5.0.18

Yves Laroche
 

Hi Ray,

 

Thanks for the infos!!!

 

 

Yves

 

From: ap-gto@... [mailto:ap-gto@...]
Sent: 20 janvier 2017 08:57
To: ap-gto@...
Subject: RE: [ap-gto] Image Link Test button with APPM version 1.5.0.18

 

 

Hi Yves,

> FYI, in pressing the Image Link Test (PinPoint application) and selecting
a fits file,
> both RA and DEC values are blank even if values are present in the fits
file header.

Yes, that is correct. Previously APPM had relied on PinPoint to pull RA/Dec
because PinPoint has a built-in function to get RA/Dec from a FITS image.
However, when I added SkyX and SGPro plate solving, the different code paths
made it much harder to test and debug, so I refactored the code and created
a common plate solving interface and used dependency injection (the
dependency being one of the three plate solvers).

However, the common plate solving interface could not count on the PinPoint
function to pull RA/Dec being available (because it isn't aware of which
solver is in use), so that's why it is missing in 1.5.0.18. Since then, I've
added an internal function to read the FITS header looking for several
possible FITS header keywords for RA/Dec. This function should work across
all plate solvers because it only depends on the FITS image. This change in
the as yet unreleased 1.5.0.19.

-Ray Gralak
Author of APCC (Astro-Physics Command Center):
http://www.astro-physics.com/index.htm?products/accessories/software/apcc/ap
cc
Author of PEMPro:
http://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver:
http://www.gralak.com/apdriver
Author of PulseGuide:
http://www.pulseguide.com
Author of Sigma:
http://www.gralak.com/sigma

> -----Original Message-----
> From:
ap-gto@... [mailto:ap-gto@...]
> Sent: Thursday, January 19, 2017 10:15 PM
> To:
ap-gto@...
> Subject: [ap-gto] Image Link Test button with APPM version 1.5.0.18
>
>
>
> Hi Ray,
>
> FYI, in pressing the Image Link Test (PinPoint application) and selecting
a fits file,
> both RA and DEC values are blank even if values are present in the fits
file header.
> These values were inserted by ACP.
>
> RA = '14 03 12.40' / [hms J2000] Target right ascension
> OBJCTRA = '14 03 12.40' / [hms J2000] Target right ascension
> DEC = '+54 20 58.0' / [dms +N J2000] Target declination
> OBJCTDEC= '+54 20 58.0' / [dms +N J2000] Target declination
>
>
>
>
> In inserting manually these values, the plate solved correctly as it
should.
>
> I'm using Windows 7 x64...
>
>
> Regards,
> Yves
>
>


Re: ngc362 in Tucana

Roland Christen
 

It's so cute! Not forgotten, just overlooked ;^))

Rolando



-----Original Message-----
From: ghsmith45@... [ap-gto] To: ap-gto
Sent: Thu, Jan 19, 2017 5:15 pm
Subject: [ap-gto] ngc362 in Tucana



Think Tucana + globular cluster and the first thing that comes to mind is probably 47 Tuc. However, NGC 362 is another nice globular cluster in Tucana.

http://www.astrobin.com/280550/?nc=user
Larger res here
http://www.astrobin.com/full/280550/0/

This was another one of my November pics taken under less than ideal conditions. In this case it was poor seeing and scurrying clouds with consequent "guide star faded" messages from Maxim. So I decided to let the scope go unguided for an hour or so while I went back to the club kitchen for a glass or two (or three) of red and then later pick the best subs to process. I think it turned out OK.

Mount: AP900
Telescope: PlaneWave 12.5" CDK
Camera: FLI 16803 Proline
Unguided exposures.
Exposure 8 x 100sec each of R, G and B
Processing: Pixinsight
FOV:36' x 36' (cropped from 49' x 49')




Re: Image Link Test button with APPM version 1.5.0.18

Ray Gralak
 

Hi Yves,

FYI, in pressing the Image Link Test (PinPoint application) and selecting
a fits file,
both RA and DEC values are blank even if values are present in the fits
file header.

Yes, that is correct. Previously APPM had relied on PinPoint to pull RA/Dec
because PinPoint has a built-in function to get RA/Dec from a FITS image.
However, when I added SkyX and SGPro plate solving, the different code paths
made it much harder to test and debug, so I refactored the code and created
a common plate solving interface and used dependency injection (the
dependency being one of the three plate solvers).

However, the common plate solving interface could not count on the PinPoint
function to pull RA/Dec being available (because it isn't aware of which
solver is in use), so that's why it is missing in 1.5.0.18. Since then, I've
added an internal function to read the FITS header looking for several
possible FITS header keywords for RA/Dec. This function should work across
all plate solvers because it only depends on the FITS image. This change in
the as yet unreleased 1.5.0.19.

-Ray Gralak
Author of APCC (Astro-Physics Command Center):
http://www.astro-physics.com/index.htm?products/accessories/software/apcc/ap
cc
Author of PEMPro: http://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: http://www.gralak.com/apdriver
Author of PulseGuide: http://www.pulseguide.com
Author of Sigma: http://www.gralak.com/sigma

-----Original Message-----
From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]
Sent: Thursday, January 19, 2017 10:15 PM
To: ap-gto@yahoogroups.com
Subject: [ap-gto] Image Link Test button with APPM version 1.5.0.18



Hi Ray,

FYI, in pressing the Image Link Test (PinPoint application) and selecting
a fits file,
both RA and DEC values are blank even if values are present in the fits
file header.
These values were inserted by ACP.

RA = '14 03 12.40' / [hms J2000] Target right ascension
OBJCTRA = '14 03 12.40' / [hms J2000] Target right ascension
DEC = '+54 20 58.0' / [dms +N J2000] Target declination
OBJCTDEC= '+54 20 58.0' / [dms +N J2000] Target declination




In inserting manually these values, the plate solved correctly as it
should.

I'm using Windows 7 x64...


Regards,
Yves


Image Link Test button with APPM version 1.5.0.18

Yves Laroche
 


Re: Cable and Systems Management

Joe Zeglinski
 

David,
 
    Have a look at the KENDRICK all-in-one power boxes. However, it doesn’t have “remote controlled” power option yet.
I think it is an interesting integration of PowerPole box and USB, and cigarette lighter plugs. Even has an option for one of the sockets to be an AP mount 15 vdc power. Don’t know if it is bulkier than the “Blue Astro Hub” intended product – you decide.
 
 
HTH
Joe
 
 

From: David phrosty5@... [ap-gto]
Sent: Thursday, January 19, 2017 11:59 PM
To: ap-gto@...
Subject: Re: [ap-gto] Cable and Systems Management
 


Ive tried the same thing as well with a top plate, Powerpole box and USB hub from Startech.  It seems to work well, but is a much larger setup than should be necessary.  I’m still surprised, with tech advancing as fast as it has, that no one has come up with a great solution for a small, compact setup for power and data connections like the Blue Astro Hub that was in the works before Per passed away this past summer.  That was the most compact setup I’ve seen yet for remotely controlled power and USB connections, but its currently unavailable.  I am longing for a solution like this in one SMALL device or saddle.  Rig runners work great but are three times larger than they need to be for astro work and power requirements.  -sigh-
 
David
 


Re: Cable and Systems Management

David
 

Ive tried the same thing as well with a top plate, Powerpole box and USB hub from Startech.  It seems to work well, but is a much larger setup than should be necessary.  I’m still surprised, with tech advancing as fast as it has, that no one has come up with a great solution for a small, compact setup for power and data connections like the Blue Astro Hub that was in the works before Per passed away this past summer.  That was the most compact setup I’ve seen yet for remotely controlled power and USB connections, but its currently unavailable.  I am longing for a solution like this in one SMALL device or saddle.  Rig runners work great but are three times larger than they need to be for astro work and power requirements.  -sigh-

David



On Jan 19, 2017, at 7:45 PM, John Thompson jbtgolfer@... [ap-gto] <ap-gto@...> wrote:


Barry....

Would you provide the manufacturer and model of your hub?  I want to upgrade my Icron hub to an industrial hub. It would help to know what is already working.


On Jan 19, 2017, at 1:14 PM, 'Barry Megdal' bmegdal@... [ap-gto] <ap-gto@...> wrote:

 

What you describe is a good solution, and exactly what I have done in my observatory.  I would however suggest running a separate power cable for the dew controller, as they can introduce noise that you don’t want being seen by your camera(s).

 

A photo of my setup is here: https://www.dropbox.com/s/ei2t2b6hdshqaaz/Electronics.jpg?dl=0

 

The USB hub is a BB Electronics industrial hub that is rated for low temperature operation.

 

-          Barry

 

Dr. Barry Megdal

 

President

Shb Instruments, Inc.

19215 Parthenia St., Suite A

Northridge, CA 91324

www.shbinstruments.com

(818) 773-2000 (818) 773-2005 fax

bmegdal@...

 

Faculty

Dept. of Electrical Engineering

California Institute of Technology

Pasadena, CA

bmegdal@... (use either email)

 





Re: Cable and Systems Management

John Thompson <jbtgolfer@...>
 

Barry....

Would you provide the manufacturer and model of your hub?  I want to upgrade my Icron hub to an industrial hub. It would help to know what is already working.


On Jan 19, 2017, at 1:14 PM, 'Barry Megdal' bmegdal@... [ap-gto] <ap-gto@...> wrote:

 

What you describe is a good solution, and exactly what I have done in my observatory.  I would however suggest running a separate power cable for the dew controller, as they can introduce noise that you don’t want being seen by your camera(s).

 

A photo of my setup is here: https://www.dropbox.com/s/ei2t2b6hdshqaaz/Electronics.jpg?dl=0

 

The USB hub is a BB Electronics industrial hub that is rated for low temperature operation.

 

-          Barry

 

Dr. Barry Megdal

 

President

Shb Instruments, Inc.

19215 Parthenia St., Suite A

Northridge, CA 91324

www.shbinstruments.com

(818) 773-2000 (818) 773-2005 fax

bmegdal@...

 

Faculty

Dept. of Electrical Engineering

California Institute of Technology

Pasadena, CA

bmegdal@... (use either email)

 


ngc362 in Tucana

Geoff Smith
 

Think Tucana + globular cluster and the first thing that comes to mind is probably 47 Tuc. However, NGC 362 is another nice globular cluster in Tucana.

http://www.astrobin.com/280550/?nc=user
Larger res here
http://www.astrobin.com/full/280550/0/

This was another one of my November pics taken under less than ideal conditions. In this case it was poor seeing and scurrying clouds with consequent "guide star faded" messages from Maxim. So I decided to let the scope go unguided for an hour or so while I went back to the club kitchen for a glass or two (or three) of red and then later pick the best subs to process. I think it turned out OK.

Mount: AP900
Telescope: PlaneWave 12.5" CDK
Camera: FLI 16803 Proline
Unguided exposures.
Exposure 8 x 100sec each of R, G and B
Processing: Pixinsight
FOV:36' x 36' (cropped from 49' x 49')