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GM811G Worm Period?

Jim Waters
 
Edited

As the title says.? What's the worm period of the GM811G?

I have one doc that says its 239.34 and another that says?478.69.? What's the correct worm period?

EDIT - RA Worm Period
John Bridgman
 

¿ªÔÆÌåÓý

I suspect the answer is "both" - 4 minutes for RA (from G11) and 8 minutes for Dec (from GM8).

Thanks,
John
From: Jim Waters via groups.io
Sent: Sunday, June 28, 2020 13:59
Subject: [Losmandy_users_io] GM811G Worm Period?

As the title says.? What's the worm period of the GM811G?

I have one doc that says its 239.34 and another that says?478.69.? What's the correct worm period?

 

you have a G11 RA so the worm period is? 239.34?

Yes there is a different ratio for the DEC, but all the apps (including PEMPro ;) ) want the RA worm period

B

On Sun, Jun 28, 2020 at 10:59 AM Jim Waters <jimwaters@...> wrote:
As the title says.? What's the worm period of the GM811G?

I have one doc that says its 239.34 and another that says?478.69.? What's the correct worm period?



--
Brian?



Brian Valente
portfolio

Jim Waters
 

I should have been more specific.? What's the worm period for the GM811G RA?? The second doc infers 478.69 for the RA.? I will likely call Losmandy Monday and double check.
Jim Waters
 

Is this doc wrong?? It's a PEMPro doc so it should be talking about RA.




GM8,GM8G,
GM811G,GM811GHD

Stock

180

478.6893918

Yes

N/A

N/A

 

That is incorrect. I¡¯ll let ray know

On Sun, Jun 28, 2020 at 11:36 AM Jim Waters <jimwaters@...> wrote:
Is this doc wrong?? It's a PEMPro doc so it should be talking about RA.




GM8,GM8G,
GM811G,GM811GHD

Stock

180

478.6893918

Yes

N/A

N/A

--
Brian?



Brian Valente
portfolio

Jim Waters
 

Thanks Brian.
 

Hi Jim,? ( as Brian noted... just saw that)...

Worm period only applies to the RA for sidereal tracking.
That is a G11 size RA section, so the worm period for the G11 and GM811 is ~4 minutes, or the 239.34 sec.

We have quite a good chorus going!

Stay well,
Michael


On Sun, Jun 28, 2020 at 11:23 AM John Bridgman <john.bridgman@...> wrote:
I suspect the answer is "both" - 4 minutes for RA (from G11) and 8 minutes for Dec (from GM8).

Thanks,
John
From: Jim Waters via
Sent: Sunday, June 28, 2020 13:59
Subject: [Losmandy_users_io] GM811G Worm Period?

As the title says.? What's the worm period of the GM811G?

I have one doc that says its 239.34 and another that says?478.69.? What's the correct worm period?



--
Michael Herman
mobile: 408 421-1239
email: mherman346@...
 

That is incorrect. I¡¯ll let ray know
Okay thanks!

FWIW, for any of the Gemini equipped mounts the worm period does not need to be entered because the worm period is calculated from mount settings on the Gemini controller.

That is, whatever worm period value you enter in PEMPro will get overridden when you connect to a Gemini-equipped mount, so there is no reason to set worm period manually. However, you should be sure to set the correct mount type in the Gemini controller so that PEMPro will be able to set the correct worm period.

-Ray Gralak
Author of APCC (Astro-Physics Command Center):
Author of PEMPro V3:
Author of Astro-Physics V2 ASCOM Driver:


-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Brian Valente
Sent: Sunday, June 28, 2020 12:00 PM
To: [email protected]
Subject: Re: [Losmandy_users_io] GM811G Worm Period?

That is incorrect. I¡¯ll let ray know

On Sun, Jun 28, 2020 at 11:36 AM Jim Waters <jimwaters@...> wrote:


Is this doc wrong? It's a PEMPro doc so it should be talking about RA.





GM8,GM8G,
GM811G,GM811GHD

Stock

180

478.6893918

Yes

N/A

N/A





--

Brian



Brian Valente
portfolio brianvalentephotography.com <>
 

Thanks for chiming in Ray!


On Sun, Jun 28, 2020 at 3:13 PM Ray Gralak <groups3@...> wrote:
> That is incorrect. I¡¯ll let ray know

Okay thanks!

FWIW, for any of the Gemini equipped mounts the worm period does not need to be entered because the worm period is calculated from mount settings on the Gemini controller.

That is, whatever worm period value you enter in PEMPro will get overridden when you connect to a Gemini-equipped mount, so there is no reason to set worm period manually. However, you should be sure to set the correct mount type in the Gemini controller so that PEMPro will be able to set the correct worm period.

-Ray Gralak
Author of APCC (Astro-Physics Command Center):
Author of PEMPro V3:?
Author of Astro-Physics V2 ASCOM Driver:


> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On Behalf Of Brian Valente
> Sent: Sunday, June 28, 2020 12:00 PM
> To: [email protected]
> Subject: Re: [Losmandy_users_io] GM811G Worm Period?
>
> That is incorrect. I¡¯ll let ray know
>
> On Sun, Jun 28, 2020 at 11:36 AM Jim Waters <jimwaters@...> wrote:
>
>
>? ? ? ?Is this doc wrong?? It's a PEMPro doc so it should be talking about RA.
>
>? ? ? ?
>
>
>
> GM8,GM8G,
> GM811G,GM811GHD
>
> Stock
>
> 180
>
> 478.6893918
>
> Yes
>
> N/A
>
> N/A
>
>
>
>
>
> --
>
> Brian
>
>
>
> Brian Valente
> portfolio ? <>
>






--
Brian?



Brian Valente
portfolio

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