Re: Settings for use of AutoGUIDE
Hi Gabriel, Thank you so much to have described in detail how to autoguide ! It will be very usefull if I decided to autoguide in future ! Thanks Rapha?l
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Raphael Guinamard
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#7403
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Settings for use of AutoGUIDE
Here comes a description of the hardware and settings i have used to successfully Autoguide with my ServoCat driven Starstructure: *1. Hardware:* - I use a 50mm /180mm focal length Guidescope (Omegon
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Gabriel Wiklund
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#7402
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Edited
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Re: ST4 Guide Port action
Raphael, Yes indeed! Since there was only the one GUIDE switch position on Gen1/2 hand pads I had to come up with a system that would support the dual buttons. It is as the labels suggest, though one
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K9RX - Gary
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#7401
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Re: ST4 Guide Port action
Dear both, Thanks to your message, I realise I made a confusion : I though the guide 1 was used for guide fast value and guide 2 for guide slow value. But this is completely wrong as you explained and
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Raphael Guinamard
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#7400
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Re: ST4 Guide Port action
Indeed! The tracking can be extremely good. I had nights where I could measure it using a 240mm guide scope and a camera... and know what it was ... and in AZ it stayed UNDER 1 arcsec for a long
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K9RX - Gary
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#7399
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Re: ST4 Guide Port action
Raphael, Good question. First the main intention of GUIDE speeds is for visual use. At the eyepiece. It is there to allow you - looking into an eyepiece, to move around a field at a comfortable rate.
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K9RX - Gary
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#7398
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Re: ST4 Guide Port action
I am not using my scope for visual anymore, but if you leave the guide 1 values as they are and the switch on the ServoCAT is flipped to "1" visually you will not be using the guide 2 values when
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Gabriel Wiklund
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#7397
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Re: ST4 Guide Port action
Dear all, Thanks Gary to have explained the way the guiding correction works. You say " The way ST4 applies guiding is to add a fixed amount (programmed in GUIDE 2 speed value.... ". OK Then in his
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Raphael Guinamard
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#7396
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Autoguiding is now working as it should
At last guiding works as intended and without changing the settings wildly or going against PHD2 recommendations. From the last time out I have tightened the screws on my guidescope which caused it to
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Gabriel Wiklund
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#7395
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Edited
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Re: ST4 Guide Port action
Hello Gary, Thank you for the info, interesting and helpful! I have read some about guiding on Cloudy nights and it seems other systems do the same, they add to the current track rate, so when they
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Gabriel Wiklund
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#7394
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Edited
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ST4 Guide Port action
Gabriel, Just a note on how the ST4 guide port works as implemented in the ServoCAT. First off both the AZ and the ALT tracking rates are changing continuously on an ALT/AZ mount. They will go from
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K9RX - Gary
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#7393
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Re: Promising Autoguiding results in PHD2
Thanks Gabriel, clear !!!
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Raphael Guinamard
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#7392
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Re: Promising Autoguiding results in PHD2
I have seen very few images taken with dobs that have been autoguided, i can only remember one and that was on an EQ platform from Tom O, so i have only read about 2 that have succeded in doing this
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Gabriel Wiklund
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#7391
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Re: Promising Autoguiding results in PHD2
Thanks Gabriel for clarification. You indicate your unguided precision is " 0.08 arc seconds per axis per second". In the last session I did to improve my ratio, I measured initially a 0.05 arc
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Raphael Guinamard
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#7390
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Re: Promising Autoguiding results in PHD2
I would also like to take the opportunity to correct myself. I have now read the PHD2 documentation (mostly the troubleshooting section) and according to what is written there, if you get large/abrupt
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Gabriel Wiklund
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#7389
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Edited
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Re: Promising Autoguiding results in PHD2
Hello Raphael Glad it is of interest! 2.0-2.5 arc seconds unguided for my sub exposure time which? is 10-13s with only a slice of time from 1 night as reference so would need more nights to verify
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Gabriel Wiklund
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#7388
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Edited
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Re: Promising Autoguiding results in PHD2
Thanls Gabriel, Really appreciate how you share your experience ! Try astrophotography using my 36" Fullum alt/az is a target for future and with your explainations it becomes clearer what to do. And
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Raphael Guinamard
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#7387
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Re: Promising Autoguiding results in PHD2
I appreciate your gratitude Mickey, luckily the hard work has also been very interesting and rewarding! /Gabriel
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Gabriel Wiklund
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#7386
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Re: Promising Autoguiding results in PHD2
Thank you Gabriel for the hard work and time you put in in this project so far. I am hopeful to use this in some way with my rig, using SharpCap. We will see. Thank you Mickey
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Mickey Huffman
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#7385
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Promising Autoguiding results in PHD2
Thanks to the moon i have been able to dedicate the last 3 clear nights on getting autoguding to work with my ServoCat driven 30" F3.4 Starstructure dob. The first night i used a guidespeed of 25 arc
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Gabriel Wiklund
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#7384
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