Date   

Re: Tripod mounting of 1600GTO

Christopher Erickson
 

The LX200-16 tripod will work without much effort but it isn't very pretty or versatile. I have one so I am speaking from experience.

It would be very simple to place the AP 1612FSA Flat Surface Adapter on the Meade tripod top and mark, drill and tap the correct mounting holes on the tripod. Then attach the FSA and then the mount.

The new threaded holes can easily be created with simple hand tools. Or if you prefer, a machine shop or maybe even a handy friend could help you out.

And the new threaded holes would not prevent the tripod from still being used with the Meade LX200-16 scope, if desired.

The Meade super-giant field tripod isn't very tall and you might consider adding a half-pier to it.  
 
"Always take the high road. There's less traffic."

-Christopher Erickson
Observatory Engineer
Summit Kinetics
Waikoloa, Hawaii


On Tue, Nov 16, 2021 at 5:28 AM Roland Christen via groups.io <chris1011=aol.com@groups.io> wrote:
The eagle pier is not meant for the 1600. We have 10" diameter piers for the larger mounts. They come in several lengths, depending on what scope you have. For a short SCT type, I would recommend using the shortest pier to keep the mount low to the ground.

Roland



-----Original Message-----
From: Howard Ritter via groups.io <howard.ritter=mac.com@groups.io>
To: main@ap-gto.groups.io
Sent: Mon, Nov 15, 2021 11:17 pm
Subject: Re: [ap-gto] Tripod mounting of 1600GTO

Thanks, Roland. I had been looking at the Eagle portable pier, but the listing doesn’t mention the 1600GTO. Are the two adaptable to each other and play nicely together?

By the way, my 25-year-old 155EDF says “Hi, Dad!”

—howard

On Nov 15, 2021, at 4:42 PM, Roland Christen via groups.io <chris1011@...> wrote:

For the 1600 nothing beats an ATS for rigidity. I have found that wood tripods like the Berlebach will twist slightly with variable moisture in the atmosphere, and thus change the polar alignment. Not my choice for a permanent setup, but fine for portable use.

Our portable piers are also great for backyard setups and don't cost as much as the ATS.

Rolando

-----Original Message-----
From: Howard Ritter via groups.io <howard.ritter@...>
To: main@ap-gto.groups.io
Sent: Mon, Nov 15, 2021 2:43 pm
Subject: [ap-gto] Tripod mounting of 1600GTO

I have been hoping to put my 1600GTO mount, due in February, on a pedestal in my side yard. This is looking like it may not be feasible, and I’m thinking again of the idea of tripod mounting. I have a Meade Giant Field Tripod for my 16” LX200 that I could have an adapter machined for, but that tripod may be too much to deal with easily.

I have a spare Berlebach Planet tripod rated for 120 kg, but I don’t know whether it’s adequate for the 100 kg of mount, scope, and counterweights that I have in mind (PlaneWave 14”, or failing that, a C14).

If the Planet is marginal for astroimaging with this setup, what’s a good option? Berlebach makes a bigger tripod, the Graviton, rated for 220 kg, but it’s 5x the cost of a Planet. The listing fo the A-P Eagle doesn’t mention a mount as big as the 1600. That leaves the Bisque Pyramid.

Any thoughts? Experiences?

—howard







--
Roland Christen
Astro-Physics


--
Roland Christen
Astro-Physics


Re: No longer lost in space...but the pointing....

Astrobob
 

Thanks for the response Peter. I do have mirror locks.

Even the 40 stars I’ve T-Pointed change to slightly different locations on my imager CCD each time I come back to them during the night.

Something seems to be moving…I’ve checked everything and nothing is loose or slipping.

 

Bob

 

Sent from Mail for Windows

 


Re: Takahashi TOA-130 on a mach1

George
 

Linda,

If you use the 8" extension, then the control box adapter can be attached normally (where the mount attaches at the top of the extension).

It is best to contact me directly, rather than through the group.

Regards,

George

George Whitney
Astro-Physics, Inc.
Phone:  815-222-6538 (direct line)
Phone:  815-282-1513 (office)
Email:  george@...

-----Original Message-----
From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Linda Thomas
Sent: Monday, November 15, 2021 1:28 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] Takahashi TOA-130 on a mach1

I recently bought a new-to-me but pristine TOA-130. I hadn’t planned to buy a larger telescope until I upgraded my mount from the current EQ6-r I’ve been using but this was too good an opportunity to pass up. The EQ6-r has actually done better than I expected but it’s really asking quite a lot of it for it to handle this beast of a telescope.

I’m actually on the waiting list for a Mach2 but a friend with an older Mach1 is kindly going to lend me his mount in the meantime. I have an Avalon T-Pod 110 that I was thinking of mounting it on. Is that a good option for this combination? I won’t be traveling with this setup but it will have to set up/tear down periodically. I’ve got a scope cover I can use if the weather isn’t too scary but when the bigger storms come through it has the option to stay outside for longer periods.

I know I’l need the Flat Surface Adapter to attach the mount to the tripod. I’m also guessing I’ll need a pier extension to raise the mount up for the long telescope. I’m at 39N lattitude. Would an 8 inch extension be the right choice?

I might need a bracket to attach the control box to the tripod…not sure how he currently has his attached to a wood tripod now though I have that question out to him. If his current bracket isn’t suitable, what would I need for the T-Pod 110?

Thanks in advance!

Linda


Re: [ap-ug] Glazed Donut

Roland Christen
 

It's very blue in the RGB. Loses some when adding the Luminance channel.

Rolando

-----Original Message-----
From: Kurt Friedrich via groups.io <kurt_friedrich@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>; main@ap-ug.groups.io <main@ap-ug.groups.io>
Sent: Tue, Nov 16, 2021 2:05 pm
Subject: Re: [ap-ug] Glazed Donut

The central star is very impressive.


On Tuesday, November 16, 2021, 11:40:28 AM PST, Roland Christen via groups.io <chris1011@...> wrote:


Hello Astronuts,

This is image #2 from my Hawaiian observatory. The image consists of 60 x600 sec LRGB subs. Imaging scope was the 175EDF at F7.5 (no flattener or compressor, just straight on).

To me it looks like a glazed donut, but it's also known as the Spare Tire Nebula. :^))

What's interesting is that there are no dust defects visible in the image, even though I did not use any flats. They are there, but just not visible because the sky is so dark in Hawaii that there was essentially no background flux. I did get several satellite trails in the red subs early in the morning. Median combine did a fair job of minimizing them

https://www.astrobin.com/p8jrgv/0/

Rolando

--
Roland Christen
Astro-Physics


Glazed Donut

Roland Christen
 

Hello Astronuts,

This is image #2 from my Hawaiian observatory. The image consists of 60 x600 sec LRGB subs. Imaging scope was the 175EDF at F7.5 (no flattener or compressor, just straight on).

To me it looks like a glazed donut, but it's also known as the Spare Tire Nebula. :^))

What's interesting is that there are no dust defects visible in the image, even though I did not use any flats. They are there, but just not visible because the sky is so dark in Hawaii that there was essentially no background flux. I did get several satellite trails in the red subs early in the morning. Median combine did a fair job of minimizing them

https://www.astrobin.com/p8jrgv/0/

Rolando

--
Roland Christen
Astro-Physics


Re: Website Offline

Karen Christen
 

Aaaaaaaaaaand we’re back in business!  😉

 

Clear skies, everyone!

Karen

AP

 

From: Karen
Sent: Tuesday, November 16, 2021 12:04 PM
To: ap-ug@groups.io; 'ap-gto@groups.io' <ap-gto@groups.io>
Subject: Website Offline

 

Greetings, Astro-Nuts!

 

Our website is currently not working, along with a number of other online services, it appears.  I’m sure this is a short-term outage.  Thanks for your patience and we’ll let you know when everything is back to normal.

Karen

AP


--
Karen Christen
Astro-Physics


Re: AP1600 Down

Steven Panish
 

Wade-
I use a wifi bridge to simulate an ethernet connection to my observatory.  Costs about $90.  I use Ubiquite Nanostation M2 but TPLink has good products as well, both are cheap.  Mine works very well.   Actually the whole house is on this system as well with the base station about 1400 ft away.  No wires!  In my case the whole observatory is off-grid PV powered.

Steve

On Mon, Nov 15, 2021 at 6:47 PM W Hilmo <y.groups@...> wrote:
I've been keeping my AP1600-AE set up outdoors under a cover almost since I got it in 2012.

I lived in Western Washington most of that time.  Our property was surrounded by forest and we never got the full force of the wind at ground level.  I've been on the east side of the mountains for the last year, in an area with high winds.  50 mph winds are pretty common.

The wind over here often continues all night long, and it can wreak havoc on imaging (to say the least).  For the last couple of months, I've had it surrounded by a wind break, comprised of a 6' high square metal frame, 10 feet on a side, with tarps to break the wind.  This has been remarkably effective at allowing me to image in the wind.

I was sitting in my home office today and heard the wind howling (not unusual).  The house made kind of a groaning sound with a particularly large gust.  I looked out my window just in time to see my wind break pull up the anchors and move across the ground.  When it got to the mount, the mount stopped it momentarily until the wind break climbed up and over the mount.  As it went over, it pulled the mount over.  Fortunately, I removed the scope and accessories from the mount last week, when it became obvious that we'd not have any imaging weather for a while (and even if the scope were still mounted, I've been doing wide field stuff, so it would have been my SV80 and not the AP130).  We have a couple of clear nights forecast this week, so I was thinking about putting the scope back on.  Now I'm glad that I didn't.

The wind break was completely destroyed.  I live in a good sized chunk of property, but the wind was taking the structure towards the road (a few hundred feet from the mount's site), so I went out and cut the tarps loose so that it would (hopefully) stay on my property.

It's still far too windy to attempt any clean up.  It was dangerous enough getting the wind break broken up so that it's not still heading across the state to the east.  The mount was tipped over to the west, so I'm hoping that the dovetail saddle, or any part of the declination axis made contact with the ground.  It's still under the cover, so I need to investigate that once the wind calms.  My neighbor has his own weather station that is connected to Weather Underground.  It claims that the winds is 34 mph, gusting 38.  I don't think that's remotely correct.  The gust that took everything down was much stronger than the sustained wind.

I have my fingers crossed that there is no damage to the mount...

-Wade



Website Offline

Karen Christen
 

Greetings, Astro-Nuts!

 

Our website is currently not working, along with a number of other online services, it appears.  I’m sure this is a short-term outage.  Thanks for your patience and we’ll let you know when everything is back to normal.

Karen

AP


--
Karen Christen
Astro-Physics


Re: AP1600 Down

Mike Dodd
 

On 11/16/2021 11:37 AM, Brian Valente wrote:
Really nice writeup Mike!
I noted your DIY telescope caps. Boy those are fast!
Model servos move really fast. My Arduino program introduces a 10-millisecond delay per degree over the 145-degree movement, so it takes 1.45 seconds to open or close a cap. The delay can be customized to accommodate caps of different sizes.

--
Mike

Mike Dodd
Louisa County, Virginia USA
http://astronomy.mdodd.com


Re: AP1600 Down

 

Really nice writeup Mike! 

i bookmarked it for future reference.

I noted your DIY telescope caps. Boy those are fast!

Brian


On Tue, Nov 16, 2021 at 8:26 AM Mike Dodd <mike@...> wrote:
On 11/16/2021 10:21 AM, Roland Christen via groups.io wrote:
> That's a beautiful observatory. Very practical.

Thanks, Roland. We learned a lot from the first one, and Louise insisted
on doing it right. My intent was to apply siding directly to the wall
studs, but she required 5/8" sheathing and Tyvec house wrap under the
siding. I wanted to use vinyl siding, but Louise wanted Hardieplank,
just like on our house. Plus,  she caulked everywhere the siding met the
PVC trim.

I chose the blue color, and Louise called it "lovely." This fall we
painted our house to match. :-)

The upside-down garage door opener for the roof works very well.
<http://astronomy.mdodd.com/observatory.html#Opener> I couldn't ask for
a better installation -- MUCH simpler than my original plan.
--
Mike

Mike Dodd
Louisa County, Virginia USA
http://astronomy.mdodd.com








--
Brian 



Brian Valente


Re: AP1600 Down

Roland Christen
 


The upside-down garage door opener for the roof works very well.
<http://astronomy.mdodd.com/observatory.html#Opener>
Excellent idea.

Roland


-----Original Message-----
From: Mike Dodd <mike@...>
To: main@ap-gto.groups.io
Sent: Tue, Nov 16, 2021 10:26 am
Subject: Re: [ap-gto] AP1600 Down

On 11/16/2021 10:21 AM, Roland Christen via groups.io wrote:
> That's a beautiful observatory. Very practical.

Thanks, Roland. We learned a lot from the first one, and Louise insisted
on doing it right. My intent was to apply siding directly to the wall
studs, but she required 5/8" sheathing and Tyvec house wrap under the
siding. I wanted to use vinyl siding, but Louise wanted Hardieplank,
just like on our house. Plus,  she caulked everywhere the siding met the
PVC trim.

I chose the blue color, and Louise called it "lovely." This fall we
painted our house to match. :-)

The upside-down garage door opener for the roof works very well.
<http://astronomy.mdodd.com/observatory.html#Opener> I couldn't ask for
a better installation -- MUCH simpler than my original plan.
--
Mike

Mike Dodd
Louisa County, Virginia USA
http://astronomy.mdodd.com







--
Roland Christen
Astro-Physics


Re: AP1600 Down

Mike Dodd
 

On 11/16/2021 10:21 AM, Roland Christen via groups.io wrote:
That's a beautiful observatory. Very practical.
Thanks, Roland. We learned a lot from the first one, and Louise insisted on doing it right. My intent was to apply siding directly to the wall studs, but she required 5/8" sheathing and Tyvec house wrap under the siding. I wanted to use vinyl siding, but Louise wanted Hardieplank, just like on our house. Plus, she caulked everywhere the siding met the PVC trim.

I chose the blue color, and Louise called it "lovely." This fall we painted our house to match. :-)

The upside-down garage door opener for the roof works very well. <http://astronomy.mdodd.com/observatory.html#Opener> I couldn't ask for a better installation -- MUCH simpler than my original plan.
--
Mike

Mike Dodd
Louisa County, Virginia USA
http://astronomy.mdodd.com


Re: APPM Model sanity check (suggestion)

Ray Gralak
 

Hi John,

I switched from APPM to APCC and was surprised to find that the older (now verified) model was active.
APPM / APCC had re-enabled pointing and tracking corrections.
A Verify measures but does not modify the loaded pointing model. To do that, it turns on pointing and tracking rate corrections.

1. Does APCC / APPM have a built-in criteria for how good a model Verify run should be before re-
enabling pointing and tracking corrections?
No, it just measures pointing errors.

2. Does APCC always enable pointing and tracking corrections after a Verify run regardless of how large /
small the pointing errors were?
APPM turns on pointing and tracking corrections at the start of a Verify run, leaving them on afterward.

-Ray


Re: Tripod mounting of 1600GTO

Roland Christen
 

The eagle pier is not meant for the 1600. We have 10" diameter piers for the larger mounts. They come in several lengths, depending on what scope you have. For a short SCT type, I would recommend using the shortest pier to keep the mount low to the ground.

Roland



-----Original Message-----
From: Howard Ritter via groups.io <howard.ritter@...>
To: main@ap-gto.groups.io
Sent: Mon, Nov 15, 2021 11:17 pm
Subject: Re: [ap-gto] Tripod mounting of 1600GTO

Thanks, Roland. I had been looking at the Eagle portable pier, but the listing doesn’t mention the 1600GTO. Are the two adaptable to each other and play nicely together?

By the way, my 25-year-old 155EDF says “Hi, Dad!”

—howard

On Nov 15, 2021, at 4:42 PM, Roland Christen via groups.io <chris1011@...> wrote:

For the 1600 nothing beats an ATS for rigidity. I have found that wood tripods like the Berlebach will twist slightly with variable moisture in the atmosphere, and thus change the polar alignment. Not my choice for a permanent setup, but fine for portable use.

Our portable piers are also great for backyard setups and don't cost as much as the ATS.

Rolando

-----Original Message-----
From: Howard Ritter via groups.io <howard.ritter@...>
To: main@ap-gto.groups.io
Sent: Mon, Nov 15, 2021 2:43 pm
Subject: [ap-gto] Tripod mounting of 1600GTO

I have been hoping to put my 1600GTO mount, due in February, on a pedestal in my side yard. This is looking like it may not be feasible, and I’m thinking again of the idea of tripod mounting. I have a Meade Giant Field Tripod for my 16” LX200 that I could have an adapter machined for, but that tripod may be too much to deal with easily.

I have a spare Berlebach Planet tripod rated for 120 kg, but I don’t know whether it’s adequate for the 100 kg of mount, scope, and counterweights that I have in mind (PlaneWave 14”, or failing that, a C14).

If the Planet is marginal for astroimaging with this setup, what’s a good option? Berlebach makes a bigger tripod, the Graviton, rated for 220 kg, but it’s 5x the cost of a Planet. The listing fo the A-P Eagle doesn’t mention a mount as big as the 1600. That leaves the Bisque Pyramid.

Any thoughts? Experiences?

—howard







--
Roland Christen
Astro-Physics


--
Roland Christen
Astro-Physics


Re: AP1600 Down

Roland Christen
 

That's a beautiful observatory. Very practical.

Roland

-----Original Message-----
From: Mike Dodd <mike@...>
To: main@ap-gto.groups.io
Sent: Mon, Nov 15, 2021 8:16 pm
Subject: Re: [ap-gto] AP1600 Down

On 11/15/2021 8:15 PM, W Hilmo wrote:
> ...or set up a concrete
> pier set deep into the ground, except that it would be temporary, as I
> have plans to build an observatory next year.

I vote for building the pier now, then build the observatory around it
next year.

I've built two observatories, and the concrete pier was the first thing
constructed. Here's our latest observatory project if you're interested:
<http://house.mdodd.com/project_obs.html> Scroll down for a table of
links to the construction steps.
--
Mike

Mike Dodd
Louisa County, Virginia USA
http://astronomy.mdodd.com







--
Roland Christen
Astro-Physics


Re: APPM Model sanity check (suggestion)

John Upton
 

Ray,

On Sat, Nov 6, 2021 at 02:35 PM, Ray Gralak wrote:
You could do a simple test to find out! Specifically, you could do a Verify run in APPM with a much smaller number of points than your model. That is, a Verify run does not have to use the same points as your active model. When you do this, take a look at the measured pointing errors in the table that APPM creates in the verify run.
   I usually set up anew each night but this past week we had a couple of nights in a row that were clear. I left the Mach2 set up for a couple of nights. I had built a small model (33 points) the first night so the next, I ran a super-tiny "spot check" model of only 9 points to verify pointing.

   Before running the verification, I disabled the model for both pointing and tracking corrections. I checked and slightly tweaked my polar alignment. I then ran the 9 point Verify run against the larger existing model. All points had an error of 0.2 arc-minutes or (much) less for the verification run. I decided to keep the existing model.

   I switched from APPM to APCC and was surprised to find that the older (now verified) model was active. APPM / APCC had re-enabled pointing and tracking corrections.

   This leads to my questions: 
  1. Does APCC / APPM have a built-in criteria for how good a model Verify run should be before re-enabling pointing and tracking corrections?

    --Or--

  2. Does APCC always enable pointing and tracking corrections after a Verify run regardless of how large / small the pointing errors were?

John


Re: Takahashi TOA-130 on a mach1

Dean Jacobsen
 

Nice looking setup.
--
Dean Jacobsen
Astrobin Image Gallery - https://www.astrobin.com/users/deanjacobsen/


Re: Takahashi TOA-130 on a mach1

Samir Patel
 

Hi Linda congratulations on your new Tak TOA-130, I use similar combination but with a Avalon T-Pod 130 (reason I bought 130, it was only available to be shipped out quickly). I acquired Mach 1 from Luca who responded below in pristine condition and based on his input I bought the T-Pod 130. I don’t have a pier extension, out of 10 or so times I’ve been out the scope has gone to hit the tripod leg once. I’d highly recommend the pier extension with toa130 but be aware the scope is heavy (as you’d already know) and depending on how tall you are it might get hard to put the scope on the mount. I’m 5’5”, with the t-pod 130 (which is taller than 110) I am not be able to use pier extension for the same reason. Hope this helps.

Samir

On Monday, November 15, 2021, Luca Marinelli <photo@...> wrote:
Good point, Michael. I did use the extension to connect the CP4 to the mount so it clears the tripod as well.

Luca 

On Nov 15, 2021, at 3:23 PM, Michael Kelly via groups.io <Michael=completedieselva.com@groups.io> wrote:


Linda,

I use the AP Q6280KIT bracket that attaches the control box adapter with the Mach1. I would suggest calling them and speak with George, he is a wealth of information and loves sharing his intel!

Best,

Michael

On Monday, November 15, 2021, 03:16:46 PM EST, Luca Marinelli <photo@...> wrote:


Hi Linda,

Congratulations on the new telescope! I have used the Mach 1 with an Avalon T-Pod 110 and you will not even need the flat surface adapter. The bolt pattern on the T-Pod is compatible with the ADATRI adapter for the Mach 1. The T-Pod is a fairly rigid tripod and it should be a good match for your optics. I used the Mach 1/T-Pod combination with a 10in f4 Newtonian for about a year until I moved the telescope to a AP1100 on a Losmandy tripod. Obviously the bigger mount and beefier tripod made for a much more substantial platform but the Mach1/T-Pod was no slouch either. If you have that equipment in your hands, no reason not to give it a go. The only limitation will be how much wind that system can tolerate.

Cheers,

Luca


-----Original Message-----
From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Linda Thomas via groups.io
Sent: Monday, November 15, 2021 2:28 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] Takahashi TOA-130 on a mach1

I recently bought a new-to-me but pristine TOA-130. I hadn’t planned to buy a larger telescope until I upgraded my mount from the current EQ6-r I’ve been using but this was too good an opportunity to pass up. The EQ6-r has actually done better than I expected but it’s really asking quite a lot of it for it to handle this  beast of a telescope.

I’m actually on the waiting list for a Mach2 but a friend with an older Mach1 is kindly going to lend me his mount in the meantime. I have an Avalon T-Pod 110 that I was thinking of mounting it on. Is that a good option for this combination? I won’t be traveling with this setup but it will have to set up/tear down periodically. I’ve got a scope cover I can use if the weather isn’t too scary but when the bigger storms come through it has the option to stay outside for longer periods.

I know I’l need the Flat Surface Adapter to attach the mount to the tripod. I’m also guessing I’ll need a pier extension to raise the mount up for the long telescope. I’m at 39N lattitude. Would an 8 inch extension be the right choice?

I might need a bracket to attach the control box to the tripod…not sure how he currently has his attached to a wood tripod now though I have that question out to him. If his current bracket isn’t suitable, what would I need for the T-Pod 110?

Thanks in advance!

Linda










Re: Dec Arc Tracking in APCC in our Wiki #APCC #Guiding

Dean Jacobsen
 

Thanks for the info Ray.
--
Dean Jacobsen
Astrobin Image Gallery - https://www.astrobin.com/users/deanjacobsen/


Re: Dec Arc Tracking in APCC in our Wiki #APCC #Guiding

Ray Gralak
 

You don't need to purchase a subscription renewal to download, install, and run APCC v1.9.x. The new v1.9
features, including Dec Arc tracking, are only activated if your license is dated August 1, 2020, or later, but
there are bug fixes and minor improvements that make installing 1.9 worthwhile.
And to be clear, you don't need to purchase a subscription renewal to get the bug fixes and minor feature improvements in 1.9. Those are free!

-Ray

5921 - 5940 of 88824