Date   

Re: Pegasus Pocket Power box not available to APCC

ap@CaptivePhotons.com
 

I'm on APCC 1.9.2.3 and Pegasus Astro Observing Conditions Driver 1.5 9 (kind of old maybe a newer one is out there) and Pegasus switchbox 2.3 software and I can see it, and it tests.  I tried it both through the hub and direct. 

Are you sure you installed the ASCOM driver not (just) the powerbox software?   On the Pocket version (and I think others) it is two different installs. 

Linwood


Pegasus Pocket Power box not available to APCC

Joseph Beyer
 

I just built a new NUC for imaging and it appeared all the software was working except I'm not able to connect APCC environmental conditions to the Power box.  The NUC was loaded with the most current version of Windows 10 Pro and latest versions of ASCOM, Pegasus driver, APCC and V2 driver.  When I loaded APCC Pro I didn't see the black screen flash as it usually does at the end of installation.  

Typically the Pegasus box is available through the Observation Conditions Hub when it's installed and connected but it's not available as an option on the new build.  Everything else in the imaging train and software is working as expected.

Any suggestions?

Joe


Re: Flexible all-weather USB3 cable?

Woody Schlom
 

Christopher,

 

Yup, I found the same specs myself.  Interesting that the shielding is aluminum braid.  That alone might make these cables more flexible.  And also interesting is that the cable jacket is PVC – which usually stiffens up a lot when it gets cold.

 

At least for me, I NEVER intend to use the cables at -20° C.  My fingers don’t move at those low temperatures any more.

 

Thanks for your help,

Woody

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Christopher M
Sent: Thursday, January 13, 2022 9:03 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Flexible all-weather USB3 cable?

 

You made me dig but I found it on their international website, oddly:
Lindy 36663 USB 3.2 Gen 1 A-B 5m:  24 AWG power and 28 AWG signal, 85% braid, 5Gbps bandwidth, 2.2" minimum bend.  Under Technical Details:
https://www.lindy-international.com/5m-USB-3-0-Type-A-to-B-Cable-5Gbps-Cromo-Line.htm?websale8=ld0101.ld021102&pi=36664&ci=800504

Yes, it was shipped from the UK and took a couple of weeks to my memory.  The cable isn't small/tiny.  The connectors seem pretty good and not cheap.  I'm happy with mine so far, but again I haven't pushed it lower than -12C so far.   I use it for my QHY5III290C video/guider camera.  No drop outs or issues noticed at high video speeds when I tried planetary work.
Yeah, not a $10 cable, but it feels better than any of the regular/basic USB 3 A-B's that I had lying around, and the final price was cheaper delivered to me in Canada than the L-Com cables were after UPS surcharges (bleh).  I think you should be happy unless you push colder than its -20C rating.
:)


Re: Flexible all-weather USB3 cable?

Christopher M
 

You made me dig but I found it on their international website, oddly:
Lindy 36663 USB 3.2 Gen 1 A-B 5m:  24 AWG power and 28 AWG signal, 85% braid, 5Gbps bandwidth, 2.2" minimum bend.  Under Technical Details:
https://www.lindy-international.com/5m-USB-3-0-Type-A-to-B-Cable-5Gbps-Cromo-Line.htm?websale8=ld0101.ld021102&pi=36664&ci=800504

Yes, it was shipped from the UK and took a couple of weeks to my memory.  The cable isn't small/tiny.  The connectors seem pretty good and not cheap.  I'm happy with mine so far, but again I haven't pushed it lower than -12C so far.   I use it for my QHY5III290C video/guider camera.  No drop outs or issues noticed at high video speeds when I tried planetary work.
Yeah, not a $10 cable, but it feels better than any of the regular/basic USB 3 A-B's that I had lying around, and the final price was cheaper delivered to me in Canada than the L-Com cables were after UPS surcharges (bleh).  I think you should be happy unless you push colder than its -20C rating.
:)


Re: Flexible all-weather USB3 cable?

michael mccann
 

It gets to small digits plus or minus F° or ~ -20C a couple nights a year. So I would love to see a review on these cables. Usually some of our clearest nights.

Cheers


Re: Flexible all-weather USB3 cable?

Woody Schlom
 

Christopher,

 

Thanks.  I’d already found them on Amazon and just blindly ordered a couple purely based on your recommendation.  So if I don’t like them – you may hear about it.  Can you live with the pressure of that recommendation? 

 

My initial reactions to the order are:  VERY expensive, and even though Amazon said they were in stock, they’re apparently coming directly from the UK – and the delivery estimate is first week of Feb. at the earliest.

 

I couldn’t find any detailed specs on the Cromo cables – such as wire gauge.  Based on the photos, the cable itself looks relatively thin to me (thinner than many of my L-com cables with the larger wire gauges and double-shielding).  So I’m guessing the wire gauge for the Cromo cables is probably 30/28/28.  Not the greatest for CMOS cameras that need all the voltage they can get.  My stiff PVC jacketed L-com cables are 28/26/24, and one of them even has #22 power wires inside.

 

Oh well.  I guess the proof is in the pudding and I’ll find out how well the Cromo cables work sometime next month.

 

Woody

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Christopher M
Sent: Thursday, January 13, 2022 4:44 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Flexible all-weather USB3 cable?

 

Sorry, I should have provided a link to purchase sites for the Lindy:
https://www.amazon.com/LINDY-36664-Type-Cable-Cromo/dp/B07F6WHVLH/ref=sr_1_1?crid=1472ZRARBF8FH&keywords=lindy%2Bcromo%2Busb%2B3&qid=1642120850&sprefix=battery%2Bcapacity%2Bmonitor%2Caps%2C272&sr=8-1&th=1

at -12C both the Lindy Cromo cables and the L-Com cables becames noticably stiffer than when at room temperature, but not rigid.  I was not afraid of them cracking in use or when packing up in the morning.

Cheers!
Christopher M


Re: Flexible all-weather USB3 cable?

Christopher M
 

Sorry, I should have provided a link to purchase sites for the Lindy:
https://www.amazon.com/LINDY-36664-Type-Cable-Cromo/dp/B07F6WHVLH/ref=sr_1_1?crid=1472ZRARBF8FH&keywords=lindy%2Bcromo%2Busb%2B3&qid=1642120850&sprefix=battery%2Bcapacity%2Bmonitor%2Caps%2C272&sr=8-1&th=1

at -12C both the Lindy Cromo cables and the L-Com cables becames noticably stiffer than when at room temperature, but not rigid.  I was not afraid of them cracking in use or when packing up in the morning.

Cheers!
Christopher M


Re: Flexible all-weather USB3 cable?

Woody Schlom
 

Christopher,

 

Thank you for all the detailed information.

 

I’m currently using several various L-com cables, but all the ones I have are made with PVC jackets.  And the double shielded, large AWG ones in particular are even stiff at 50° F.

 

And thanks for explaining TPE, PU and PUR.  I saw that L-com has some TPE cables both made up, and in bulk.  And I wondered if it was more pliable in cold weather.  But I’d have to make my own as the ones they offer made up are too short.

 

I’ve never heard of the Lindy Cromo cables, but will look them up.

 

Thanks again,

Woody

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Christopher M
Sent: Thursday, January 13, 2022 3:56 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Flexible all-weather USB3 cable?

 

Look for TPE (thermoplastic elastomer) or PU or PUR insulated (jacketed) cables, which is are industrial cable insulations rated to -40C and colder.
PVC is typically consumer grade and gets brittle in the cold, as observed
I have made DC power cables from silicone insulated wire of the type used in model airplanes, cars etc, but it is easily nicked and cut, so I protect it with braided sleeving or other.  Silicone wire insulation also doesn't seem to be UV protected so is not recommended (by me at least) for a permanent installation.  I saw a friend's install for his portable RV solar panels go bad in one summer season when the insulation bleached and cracked.

L-Com has high flex TPE insulated USB 3 cables in this series but they are all short:  https://www.l-com.com/usb-usb-30-high-flex-type-a-male-to-type-b-male-cable
They also have PUR insulated high flex USB 2 cables in this series:  https://www.l-com.com/usb-high-flex-usb-20-cables-polyurethane-jacket-type-a-b-connectors
And high flex outdoor rated TPE Ethernet in these series:  https://www.l-com.com/ethernet-cat5e-rj45-tpe-utp-continuous-flex-outdoor-industrial-ethernet-poe-patch-cords

Be warned if you are out of the US that L-Com ships via UPS and UPS did line by line brokerage charges that ticked me off.  $67 in brokerage fees alone for a US$170 order of 5 line items.  Grrr.

Another alternative is Lindy Cromo USB cables available via Amazon.  They are a fancy audio cable maker from the UK and their Cromo line seems pretty nice.  Officially rated -20C to 50C operating range.  eg:  https://www.lindy.co.uk/cables-adapters-c1/usb-c449/0-5m-usb-3-2-type-a-to-b-cable-5gbps-cromo-line-p11357

Personally I have sets of USB 2 and 3 Lindy Cromo, as well as the aforementioned L-Com PUR and TPE insulated USB2 and Ethernet cables, but I have only used them down to about -12C before the skies tanked here for the season (Calgary AB). 

As for making your own, I have heard of people doing it but not tried it myself.  Connectors can be purchased from the likes of DigiKey.  Ensure you get the appropriately rated cable, too, and have good soldering skills as you will be soldering fine wires to small pins in close proximity and you cannot do a sloppy rats nest of bends at the connector as it could impact the signals.

All the best
Christopher M


Re: Flexible all-weather USB3 cable?

Christopher M
 

Look for TPE (thermoplastic elastomer) or PU or PUR insulated (jacketed) cables, which is are industrial cable insulations rated to -40C and colder.
PVC is typically consumer grade and gets brittle in the cold, as observed
I have made DC power cables from silicone insulated wire of the type used in model airplanes, cars etc, but it is easily nicked and cut, so I protect it with braided sleeving or other.  Silicone wire insulation also doesn't seem to be UV protected so is not recommended (by me at least) for a permanent installation.  I saw a friend's install for his portable RV solar panels go bad in one summer season when the insulation bleached and cracked.

L-Com has high flex TPE insulated USB 3 cables in this series but they are all short:  https://www.l-com.com/usb-usb-30-high-flex-type-a-male-to-type-b-male-cable
They also have PUR insulated high flex USB 2 cables in this series:  https://www.l-com.com/usb-high-flex-usb-20-cables-polyurethane-jacket-type-a-b-connectors
And high flex outdoor rated TPE Ethernet in these series:  https://www.l-com.com/ethernet-cat5e-rj45-tpe-utp-continuous-flex-outdoor-industrial-ethernet-poe-patch-cords

Be warned if you are out of the US that L-Com ships via UPS and UPS did line by line brokerage charges that ticked me off.  $67 in brokerage fees alone for a US$170 order of 5 line items.  Grrr.

Another alternative is Lindy Cromo USB cables available via Amazon.  They are a fancy audio cable maker from the UK and their Cromo line seems pretty nice.  Officially rated -20C to 50C operating range.  eg:  https://www.lindy.co.uk/cables-adapters-c1/usb-c449/0-5m-usb-3-2-type-a-to-b-cable-5gbps-cromo-line-p11357

Personally I have sets of USB 2 and 3 Lindy Cromo, as well as the aforementioned L-Com PUR and TPE insulated USB2 and Ethernet cables, but I have only used them down to about -12C before the skies tanked here for the season (Calgary AB). 

As for making your own, I have heard of people doing it but not tried it myself.  Connectors can be purchased from the likes of DigiKey.  Ensure you get the appropriately rated cable, too, and have good soldering skills as you will be soldering fine wires to small pins in close proximity and you cannot do a sloppy rats nest of bends at the connector as it could impact the signals.

All the best
Christopher M


Re: Separate power for mount - why?

rockhead_20601
 

This link about Astron power supplies may be useful for owners and those considering buying one.

http://www.repeater-builder.com/astron/astron-index.html

Richard


Re: Separate power for mount - why?

Dean Jacobsen
 

On Tue, Jan 11, 2022 at 12:41 PM, Jeffc wrote:
Fwiw I’ve had an Astron 35M since the early 90s.    It’s a linear supply. 
(I’ve heard the Astron Linear supply represents a near perfect DC. )
I’ve used it occasionally for running the mount and camera.  
Yes, I have been a fan of Astron power supplies for years.  I use one of their linear PS units to power my ham radio gear.  They have nice switching units that I have been using for my astro gear.  Power supplies that are marketed as “communications grade” are generally good choices for mounts, cameras and computers.
 
--
Dean Jacobsen
Astrobin Image Gallery - https://www.astrobin.com/users/deanjacobsen/


Re: Separate power for mount - why?

Woody Schlom
 

Allen,

 

They don’t necessarily.  What many recommend is keeping the mount power separate, and many also recommend keeping dew heater power separate.

 

But now that some All-in-One devices are showing up (I’m thinking specifically of the Pegasus-Astro PowerBoxes that combine 12v distribution, USB hub, and built-in dew controller all in the same device, there must be some new dew controller technology or filtering being used that doesn’t interfere with 12v power as older technology ones did.

 

Bottom line.  If you aren’t having problems running everything off a single power source, don’t worry about it.  But if you are having odd and intermittent problems (i.e. noise or noise lines in your images – or odd mount tracking problems), you might consider or test separating your mount power and/or your dew heater power.

 

But not-to-worry.  The Power Police aren’t going to come lock you up.  And I don’t think there’s any risk of ruining any equipment.  It’s just that some devices are known (or were known in the past) to cause power line problems that showed up in camera images.  For visual observers, none of this applies.

 

And be glad you aren’t trying to run old-fashioned video cameras and systems where ground-loop problems were lurking and just waiting to put hum bars in your video.  Reminds me.  I wonder if you can still even find and buy “Hum-Buckers?”

 

Woody

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Allen Ruckle
Sent: Tuesday, January 11, 2022 4:30 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Separate power for mount - why?

 

 



On Jan 11, 2022, at 11:47 AM, Greg McCall <emailgregnow@...> wrote:

 

I’d like to see where each manufacturer recommends the use of a dedicated or separate power supply.

 

 

On Wed, 12 Jan 2022 at 3:18 am, M Hambrick <mhambrick563@...> wrote:

If you follow the manufacturers' recommendations explicitly, we should be running three separate power supplies like Emilio is doing: one for the mount, one for the camera(s), and one for everything else.

I have been running everything (1100 mount, STXL16200 camera, dew heaters, laptop) off of a single Powerwerx 25-amp variable voltage power supply for several years. When everything listed above is running off of the single power supply and the voltage set at about 14V, the total current draw is about 3.8 amps at steady state.

The biggest current load occurs when the STXL16200 camera is in the cooldown phase. During the time when the cooler output is at 100%, the camera draws about 8.0 amps. Once cooled down, the current draw is dependent on the cooler output. At 40% output it draws about 2.6 amps. At 58% it draws 4.0 amps. During one experiment with the cooler output running at 74%, the current load was 5.2 amps. The amps jumped up to 5.8 amps when switching filters, and they jumped to 5.6 amps when downloading an image. I try to avoid running the camera with a cooler output over 70% because at about 78% output the fan kicks into high speed, and there is a lot of vibration when this happens.

By itself, the 1100 mount draws about 0.8 amps during normal tracking and about 2.5 amps when both axes are slewing at 600X. This is with a 180 EDT and guide scope set up for imaging. 

With my old Kendrick dew heater controller, the power cycled on and off. With four dew heaters (8", 4", 3", and 2") and on the medium setting, the current cycled from 0 to 3.05 amps. When running just two of the heaters (8" & 3"), the current cycled from 0 to 2.34 amps. I have since changed to one of the new DigiFire FX-Pro controllers, but I have not checked to see if this same cyclic behavior is occurring with the DigiFire controller.

I run my Asus laptop using a 12V DC power adapter (output 19V DC @ 3.42 A) that I modified to use Anderson Powerpole connectors instead of the cigarette lighter plug. I have noticed that when I plug this power cord into the laptop that there is a momentary spike in the current ranging from 3 to 4 amps. At steady state the laptop draws less than 1 amp. 

Like Jim, I have also purchased a second 25-amp variable voltage power supply. My plan is to run the mount and camera off of one supply, and everything else (dew heaters, laptop, and eventually an Icron Ranger and motorized focuser) off of the other.

Mike

 

 

 


Re: Crab Nebula Supernova expansion

Kenneth Tan
 

👍👍👍

On Wed, 12 Jan 2022 at 08:10, mjb87 via groups.io <mjb87=verizon.net@groups.io> wrote:
Awesome. Nicely done!

Marty


Re: Separate power for mount - why?

Allen Ruckle
 



On Jan 11, 2022, at 11:47 AM, Greg McCall <emailgregnow@...> wrote:

I’d like to see where each manufacturer recommends the use of a dedicated or separate power supply.


On Wed, 12 Jan 2022 at 3:18 am, M Hambrick <mhambrick563@...> wrote:
If you follow the manufacturers' recommendations explicitly, we should be running three separate power supplies like Emilio is doing: one for the mount, one for the camera(s), and one for everything else.

I have been running everything (1100 mount, STXL16200 camera, dew heaters, laptop) off of a single Powerwerx 25-amp variable voltage power supply for several years. When everything listed above is running off of the single power supply and the voltage set at about 14V, the total current draw is about 3.8 amps at steady state.

The biggest current load occurs when the STXL16200 camera is in the cooldown phase. During the time when the cooler output is at 100%, the camera draws about 8.0 amps. Once cooled down, the current draw is dependent on the cooler output. At 40% output it draws about 2.6 amps. At 58% it draws 4.0 amps. During one experiment with the cooler output running at 74%, the current load was 5.2 amps. The amps jumped up to 5.8 amps when switching filters, and they jumped to 5.6 amps when downloading an image. I try to avoid running the camera with a cooler output over 70% because at about 78% output the fan kicks into high speed, and there is a lot of vibration when this happens.

By itself, the 1100 mount draws about 0.8 amps during normal tracking and about 2.5 amps when both axes are slewing at 600X. This is with a 180 EDT and guide scope set up for imaging. 

With my old Kendrick dew heater controller, the power cycled on and off. With four dew heaters (8", 4", 3", and 2") and on the medium setting, the current cycled from 0 to 3.05 amps. When running just two of the heaters (8" & 3"), the current cycled from 0 to 2.34 amps. I have since changed to one of the new DigiFire FX-Pro controllers, but I have not checked to see if this same cyclic behavior is occurring with the DigiFire controller.

I run my Asus laptop using a 12V DC power adapter (output 19V DC @ 3.42 A) that I modified to use Anderson Powerpole connectors instead of the cigarette lighter plug. I have noticed that when I plug this power cord into the laptop that there is a momentary spike in the current ranging from 3 to 4 amps. At steady state the laptop draws less than 1 amp. 

Like Jim, I have also purchased a second 25-amp variable voltage power supply. My plan is to run the mount and camera off of one supply, and everything else (dew heaters, laptop, and eventually an Icron Ranger and motorized focuser) off of the other.

Mike




Re: Crab Nebula Supernova expansion

mjb87@...
 

Awesome. Nicely done!

Marty


Re: Crab Nebula Supernova expansion

Jeff B
 

Very nice Jim and I have to say, while the Hubble goes deeper with the stars, I like your star images better.

Jeff

On Tue, Jan 11, 2022 at 4:33 PM Karen Christen <karen@...> wrote:

Really cool, Jim!

Karen

AP

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Jim Fakatselis
Sent: Tuesday, January 11, 2022 1:51 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] Crab Nebula Supernova expansion

 

Hi group,

 

Just recently took an image of M1, the Crab Nebula, from my backyard observatory in Huntington, NY, on Long Island.

 

Image was taken with an AP 130mm f/6 refractor, Mach1GTO and the QHY 268C one shot color camera through an IDAS NBZ filter. Integration time was approx 5.3 hours on Jan 8-9, 2022. Images were 64 x 300 sec at a gain of 10.

 

Curiosity made me look for the spectacular HST image of the Crab taken around December 1999 - January 2000. 

 

A friend suggested I try to overlay my feeble attempt and the spectacular HST image. 

 

Image registration was a bit difficult at first since the HST image is so tightly cropped, not many stars are there for comparison. However, I found an animation made by HST group showing a zooming in view to where the Crab is in the sky with the HST image overlayed at different scales. I was able to grab one of the HST frames with additional stars to do image registration in Pixinsight. Had to add a few more stars from my image to avoid some blank sky areas in the frame capture. (Thank God Pixinsight has that Starnet functionality.)

 

Looking at the attached animation, you can definitely notice the supernova remnant expansion over 22 years from HST in 2000 until mine in 2022. Amazing !

 

Attached is the simple gif animation I assembled.

 

Jim Fakatselis

Peppermill Skies Observatory

Huntington, NY

 


--
Karen Christen
Astro-Physics


Re: Crab Nebula Supernova expansion

Karen Christen
 

Really cool, Jim!

Karen

AP

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Jim Fakatselis
Sent: Tuesday, January 11, 2022 1:51 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] Crab Nebula Supernova expansion

 

Hi group,

 

Just recently took an image of M1, the Crab Nebula, from my backyard observatory in Huntington, NY, on Long Island.

 

Image was taken with an AP 130mm f/6 refractor, Mach1GTO and the QHY 268C one shot color camera through an IDAS NBZ filter. Integration time was approx 5.3 hours on Jan 8-9, 2022. Images were 64 x 300 sec at a gain of 10.

 

Curiosity made me look for the spectacular HST image of the Crab taken around December 1999 - January 2000. 

 

A friend suggested I try to overlay my feeble attempt and the spectacular HST image. 

 

Image registration was a bit difficult at first since the HST image is so tightly cropped, not many stars are there for comparison. However, I found an animation made by HST group showing a zooming in view to where the Crab is in the sky with the HST image overlayed at different scales. I was able to grab one of the HST frames with additional stars to do image registration in Pixinsight. Had to add a few more stars from my image to avoid some blank sky areas in the frame capture. (Thank God Pixinsight has that Starnet functionality.)

 

Looking at the attached animation, you can definitely notice the supernova remnant expansion over 22 years from HST in 2000 until mine in 2022. Amazing !

 

Attached is the simple gif animation I assembled.

 

Jim Fakatselis

Peppermill Skies Observatory

Huntington, NY

 


--
Karen Christen
Astro-Physics


Re: Separate power for mount - why?

Jeffc
 


Fwiw I’ve had an Astron 35M since the early 90s.    It’s a linear supply. 
(I’ve heard the Astron Linear supply represents a near perfect DC. )
I’ve used it occasionally for running the mount and camera.  

It is heavy.. not as heavy as a Optima battery or the Yeti 1500x, but just not convenient to transport.  
(I suppose a smaller version would suffice.  Eg the 12amp version is “only” 13lbs.)

If I had a more permanent setup I would probably go with Astron (linear) for the 13.8 supplies. 

On Jan 11, 2022, at 11:19 AM, Woody Schlom <woody_is@...> wrote:



Linwood,

 

I’m no longer a Pyramid PS advocate.  I had two.  After a couple of years of perfect performance, one of them blew up – smoke and everything. 

 

I now keep the other one as an emergency backup only.

 

Woody

 



Re: NINA not Parking my 1100

Ron Kramer
 

I THINK  "park" means just that.  As in where you are.  Myself I run a script at the end of a sequence that parks, closes my dome and custom parks my Mach1. 


On Mon, Jan 10, 2022 at 1:13 AM Alex <groups@...> wrote:
I’ve been using SGP to automate my rig for a while now, but I thought I’d give NINA a try.  Things mostly seemed to work, but one issue is that the scope wasn’t parked in its usual position at the end of the sequence. Instead of returning the scope to park position 1, which I normally use, the scoped was parked in the position it when it was the end of the sequence.  When using SGP, it always retuned to the scope to park position 1.
 
I know NINA parked the scope from the NINA log:
 
2022-01-09T05:48:34.9198|INFO|SequenceItem.cs|Run|195|Starting Category: Telescope, Item: ParkScope
2022-01-09T05:48:34.9218|INFO|SequenceItem.cs|Run|195|Starting Category: Rotator, Item: MoveRotatorMechanical, Mechanical Position: 90
2022-01-09T05:48:34.9238|INFO|TelescopeVM.cs|ParkTelescope|130|Telescope has been commanded to park
2022-01-09T05:48:35.4005|INFO|StarDetection.cs|Detect|221|Average HFR: 3.1397415442436, HFR σ: 1.15009080928962, Detected Stars 167
2022-01-09T05:48:35.5920|INFO|BaseImageData.cs|FinalizeSave|144|Saving image at C:\Users\Alex Ranous\Documents\Imaging\Markarian's Chain\2022-01-08\LIGHT\Markarian's Chain_2022-01-09_05-45-31_Blue_LIGHT_-5.00c_gain0_180.00s_0012.xisf
2022-01-09T05:48:38.2074|INFO|SequenceItem.cs|Run|213|Finishing Category: Telescope, Item: ParkScope
And this is the bit from the APCC log mentioning parking:
 
0391883 2022-01-09 05:48:35.731:       Info, VPortCheckVPort1(COM4), (RX: :Rc#), TX: APCC,2,4070237,0#
0391884 2022-01-09 05:48:35.732:       Info,    VPort1(COM4), RX: :APCC,4070238,*PARK,0#
0391885 2022-01-09 05:48:35.736:       Info, ProcessVPortCommand, RX from VPort 1: :APCC,4070238,*PARK,0#
0391886 2022-01-09 05:48:35.736:       Info, ProcessVPortCommand, APCC Seq= 4070238, CMD=*PARK,0#
I was running with the advanced sequencer with the beta 26 version of NINA.  I’m running the 1.9.3.1 version of APCC. My understanding of ASCOM is that it doesn't have a notion of park positions, and given a command to park, the AP ASCOM driver should have parked to the last park position.  Anyone have any suggestions as to what I’m doing wrong?
 
Alex
 




Re: Crab Nebula Supernova expansion

Roland Christen
 

Yessir, you caught that perfectly! Nice job.

Rolando

-----Original Message-----
From: Jim Fakatselis <pashasdad@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Tue, Jan 11, 2022 1:51 pm
Subject: [ap-gto] Crab Nebula Supernova expansion

Hi group,

Just recently took an image of M1, the Crab Nebula, from my backyard observatory in Huntington, NY, on Long Island.

Image was taken with an AP 130mm f/6 refractor, Mach1GTO and the QHY 268C one shot color camera through an IDAS NBZ filter. Integration time was approx 5.3 hours on Jan 8-9, 2022. Images were 64 x 300 sec at a gain of 10.

Curiosity made me look for the spectacular HST image of the Crab taken around December 1999 - January 2000. 

A friend suggested I try to overlay my feeble attempt and the spectacular HST image. 

Image registration was a bit difficult at first since the HST image is so tightly cropped, not many stars are there for comparison. However, I found an animation made by HST group showing a zooming in view to where the Crab is in the sky with the HST image overlayed at different scales. I was able to grab one of the HST frames with additional stars to do image registration in Pixinsight. Had to add a few more stars from my image to avoid some blank sky areas in the frame capture. (Thank God Pixinsight has that Starnet functionality.)

Looking at the attached animation, you can definitely notice the supernova remnant expansion over 22 years from HST in 2000 until mine in 2022. Amazing !

Attached is the simple gif animation I assembled.

Jim Fakatselis
Peppermill Skies Observatory
Huntington, NY


--
Roland Christen
Astro-Physics

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