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Re: How long for UNGUIDED imaging with non AE mounts?

Emilio, While the mount can tolerate a light sprinkle, I suggest strongly against full submersion in water; as fun as it may sound on a special day. Perhaps flowers, a wipe with soft cloth

By Liam Plybon · #76261 ·

Re: How long for UNGUIDED imaging with non AE mounts?

I guess you should also remodel every time you do some load changes or tweaking of balance? I have to comment, potentially adversely to AP sales. The non-encoder option is so freaking

By Emilio J. Robau, P.E. · #76260 ·

Mach2 Guide rate and question about gear meshing.

What is the recommended guide rate setting? My experience with premium mounts is that you reduce the guide rate. The other mount I am using recommends .20 or .25 and I've been pretty happy with

By Micheal Fields Jr · #76259 ·

Re: How long for UNGUIDED imaging with non AE mounts?

As Ray notes, it depends... Following is likely TMI! For my 200 point model, it took 88'. This is based on the time delta between first and last image, which is all captured in the model file (*.PNT)

By Worsel · #76258 ·

Re: APPM pointing model using different cameras

Thank you for confirming. Sam

By Sam Saeed · #76257 ·

Re: How long for UNGUIDED imaging with non AE mounts?

That depends somewhat on image download time and plate solve time. Faster downloads will reduce time. A faster computer will usually plate-solve faster. Typically it takes about 2-3 points/minute,

By Ray Gralak · #76256 ·

Re: How long for UNGUIDED imaging with non AE mounts?

On Fri, Feb 12, 2021 at 12:19 PM, Worsel wrote: Bob I have a 200 point model for a non-AE 1100 (PEM enabled) with a 2500 mm scope. I have been able to image (0.54 a-s/pxl) unguided for 15 minutes, but

By Bob · #76255 ·

Re: APPM pointing model using different cameras

You shouldn't have to change your model.

By Xentex · #76254 ·

Re: How long for UNGUIDED imaging with non AE mounts?

Bob I have a 200 point model for a non-AE 1100 (PEM enabled) with a 2500 mm scope. I have been able to image (0.54 a-s/pxl) unguided for 15 minutes, but not consistently. With a 700 mm scope, I think

By Worsel · #76253 ·

Re: How long for UNGUIDED imaging with non AE mounts?

On Thu, Feb 11, 2021 at 10:20 PM, Peter Nagy wrote: Bob, With or without pointing model using APCC Pro? Peter Hi Peter With a pointing model. I would assume several minutes would be achievable? How

By Bob · #76252 ·

Re: Counterweight Shaft Case

What the hell are you doing bringing common sense to the party! The perfect, simple, cost effective solution to the problem! Brilliant! Steve 8>)

By Steve C. Mitchell, Sr., O.D. · #76251 ·

Re: How long for UNGUIDED imaging with non AE mounts?

Probably not. I was doing unguided imaging with an encoder mount. I apologize if I misled anyone. A mount that does not have shaft encoders is open loop and is at the mercy of the periodic error that

By Roland Christen · #76250 ·

Re: How long for UNGUIDED imaging with non AE mounts?

Bob, With or without pointing model using APCC Pro? Peter

By Peter Nagy · #76249 ·

Re: How long for UNGUIDED imaging with non AE mounts?

On Tue, Feb 9, 2021 at 11:15 PM, Roland Christen wrote: I have gone up to an hour with 1000mm FL and 5.4 micron pixel camera. -- Roland Christen Astro-PhysicsFirst, excuse me for asking for

By Bob · #76248 ·

APPM pointing model using different cameras

As per Roland a year ago answering one of my questions regarding APPM and camera rotation between sessions: Quoting Roland: (That is correct. The camera does not do anything as far as mount

By Sam Saeed · #76247 ·

Re: First light for a new camera

Great job Dean! Don Anderson On Wednesday, February 10, 2021, 11:19:50 a.m. MST, Dean Jacobsen <deanjacobsen@...> wrote:

By Don Anderson · #76246 ·

Re: Factory PEC curve, how is it generated?

Thank you Roland and Christopher. Encoder measurement is the obvious choice in hindsight.

By skester@... · #76245 ·

Re: Factory PEC curve, how is it generated?

A precision encoder is attached to the RA axis and the resultant PE error is measured using software similar to PEMPro. We do about 5 cycles for each mount (takes about 1/2 hour for that measurement).

By Roland Christen · #76244 ·

Re: First light for a new camera

On Wed, Feb 10, 2021 at 10:39 AM, Roland Christen wrote: Looks good. What is the pixel size binned 2x2?Yes, this was with the 4.63um 2x2 binned pixel configuration. Gain 120 and 240s exposures taken

By Dean Jacobsen · #76243 ·

Re: Factory PEC curve, how is it generated?

My guess is a custom bench top jig with an absolute encoder. -Christopher Erickson Observatory engineer Waikoloa, HI 96738 www.summitkinetics.com

By Christopher Erickson · #76242 ·

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