Date   

Re: Keypad Recalibrate with CP5/Mach2

Stacey Mills
 

Sorry to seem like an idiot but I've searched ap-ug and ap-gto for "keypad5, keypad, keypad 5," including the files.  I even did a general search of IO groups and I can't find it. 


Re: Unguided dumbbell stars insights

 


thanks Roland, but the problem is I have already trained the PEC curve just a month ago, and got a really great result.  I ran the mount with the new curve turned on to perhaps refine it and the deviations were so small and random that there was no point in trying to refine it. Turning the spur gear was done before not after making the PEC curve.  Furthermore, not every 6'+  image shows such motion, which is why I am puzzled.  


Re: High Res Planetary imaging with the AP1100

christian viladrich
 

Beautifull !

Christian Viladrich

Le 24/09/2021 à 19:40, Rouz a écrit :
Some more of Jupiter:


Re: Keypad Recalibrate with CP5/Mach2

Konstantin von Poschinger
 

Thats the PDF for the keypad 5. You can find it in the io usergroup for the keypad5. 

Grüsse

Konstantin v. Poschinger


Hammerichstr. 5
22605 Hamburg
040/8805747
0171/1983476

Am 25.09.2021 um 04:33 schrieb Stacey Mills <w4sm@...>:



[Edited Message Follows]

Thanks!  That did it.  I didn't see the RECAL + NEXT> documented anywhere!  Which PDF is that in?  


Re: Mach2 RA Judder

Brent Boshart
 
Edited

Here is a single short 20s sub showing the elongated stars.  A sub from 5s to 60s showed the same shape. At first I thought it may have been vibration in the camera fan, but it made no difference with the cooling fan on or off and it is in the exact direction of RA.


Mach2 RA Judder

Brent Boshart
 
Edited

An issue with my RA axis has developed with my Mach 2.  Everything starts off fine and then I begin to notice egg shaped stars across my whole image and are elongated in the same direction as RA.  It does not matter if I expose for 2 secs or 30 secs, the shape is the same.  Tonight I was imaging saturn and the same issue suddenly started.  In the video below you can see saturn juddering back and forth while the mount is sidereal tracking.  The last few seconds in the video, I slew in RA at 1x and you can see it smoothen out.  I am not using tracking correction in APCC, in fact if I don't use APCC and the ASCOM driver only I get the same results.  Counterweights and shaft are tight. I have an AP 18lb weight near the top of the shaft and a 10lb weight about halfway down. The issue is happening frequently but is intermittent. 

https://www.youtube.com/watch?v=5kTmXjHhtVk


Re: High Res Planetary imaging with the AP1100

Rouz
 

Daniel,

Thank you, glad you liked them.

Yes, that technique is a very good way of doing it, probably better than RGB as you said. I also tried many combinations like RB only to make synthetic green, using IR as R or even IR-RGB and RG610 long pass. It amazing you can do some much to squeeze out the most possible resolution.  I actually had an 18" f/15 classical cassegrain order but cancelled it and decided to pursuit deep sky imaging instead.

Overall a very additive hobby we have :)

Clear Skies,

Rouz



Re: Keypad Recalibrate with CP5/Mach2

Stacey Mills
 
Edited

Thanks!  That did it.  I didn't see the RECAL + NEXT> documented anywhere!  Which PDF is that in?  


Re: High Res Planetary imaging with the AP1100

Daniel Borcard
 

Rouz,

These are truly amazing images indeed. Now, as per your filter sequence, you write:

From: Rouz
Date: Fri, 24 Sep 2021 17:21:07 EDT 

Roland,

Yes its 60s per filter, and that's RGB-RGB-RGB on loop for a few hours.

You have to use an ADC even with a mono camera.

You'll need autostakkert3 to pick the best 20 to 30% of the frames to stack each 60s batch  (about 600 frames each 60s).

And Winjupos to derotate and stack the already stacked 60s frames (complex).

Over the time I have modified this classic sequence " Mine are as follows: RGB-BGR-RGB-BGR and so on. Why?

Two reasons: first, for derotation an RGB-BGR sequence provides an RGB set with two images per filter, where the three monochrome images end up at approximately the same time. This avoids limb artifacts. And if something is bad in, say, the RGB run in this doublet, well, just take the following BGR-RGB group to get the same result.
The second reason is that it saves two filter changes per sequence. This is a plus for me since my filter whell is manual ;-)

All my compliments again!

Daniel

--------------------------------------------------------------------
Daniel Borcard
Observatoire du Geai Bleu
Le ciel est assez grand pour que chacun y trouve sa place.
--------------------------------------------------------------------








Re: Keypad Recalibrate with CP5/Mach2

Konstantin von Poschinger
 

In the PDF:

Recalibrate
Recalibrate is used to correct the calibration of the mount if an object that you just slewed to does not appear in the center of the field. Recalibrate can be used even when the object is past the meridian and the telescope is below the mount.
Simply press the RECAL and NEXT> buttons simultaneously to recalibrate on your object. The keypad will beep to confirm that the command has been issued.
In the GTOCP4/5, you can send the mount to an object via a GoTo slew using an external planetarium program, then center and recalibrate using the keypad.
NOTE: You can only use the recalibration option if the keypad has the target object in its memory, i.e. you just gave a slew command via the keypad or external program and the keypad already knows it should be at that object. You CANNOT use this option if you manually move the telescope to another position, since the keypad would have no way of knowing what that object is.

Grüsse

Konstantin v. Poschinger


Hammerichstr. 5
22605 Hamburg
040/8805747
0171/1983476

Am 25.09.2021 um 00:38 schrieb Stacey Mills <w4sm@...>:

I have an updated keypad with my Mach2 but for the life of me I can't figure out how to get recalibrate to work.  The only Keypad manual I can find is the one from version 4.19.3 and a LOT has changed since then.  Am I missing something??  Thanks!


Keypad Recalibrate with CP5/Mach2

Stacey Mills
 

I have an updated keypad with my Mach2 but for the life of me I can't figure out how to get recalibrate to work.  The only Keypad manual I can find is the one from version 4.19.3 and a LOT has changed since then.  Am I missing something??  Thanks!


Re: High Res Planetary imaging with the AP1100

Rouz
 

Its a modified SHO palette actually. Yes, Sii and Oiii was extremely dim!

Saw a picture of that OTA I think, very unique.

Looking forward to more images.

Regards,

Rouz,


Re: High Res Planetary imaging with the AP1100

Roland Christen
 

Nice. Little bit different palette.

That object was dimmer than I expected and i really didn't have time for more imaging time. But life goes on and I'm looking forward to doing some work with my 12" Mak-Cass.

Rolando

-----Original Message-----
From: Rouz <rbidshahri@...>
To: main@ap-gto.groups.io
Sent: Fri, Sep 24, 2021 5:20 pm
Subject: Re: [ap-gto] High Res Planetary imaging with the AP1100

On Fri, Sep 24, 2021 at 02:58 PM, Roland Christen wrote:
https://www.astrobin.com/05jh1q/
That's very sharp Roland, nice work!

Sensor technology is also advancing at an amazing pace.


Saw your Elephant's trunk image too, funny I posted mine with very similar framing and color palette a few days ago too :)

I got the data with the unguided AP1100:

https://astrob.in/o831ao/D/

--
Roland Christen
Astro-Physics


Re: High Res Planetary imaging with the AP1100

Eric Weiner
 

It’s a wonderful shot Roland. Crisp.

Eric


Re: High Res Planetary imaging with the AP1100

Rouz
 

On Fri, Sep 24, 2021 at 02:58 PM, Roland Christen wrote:
https://www.astrobin.com/05jh1q/
That's very sharp Roland, nice work!

Sensor technology is also advancing at an amazing pace.


Saw your Elephant's trunk image too, funny I posted mine with very similar framing and color palette a few days ago too :)

I got the data with the unguided AP1100:

https://astrob.in/o831ao/D/


Re: How Much RAPAS Misalignment is Too Much ?

Roland Christen
 

Do your drift alignment once when the skies are hazy and not good for imaging. Then adjust the Rapas. Use it for subsequent nights and don't obsess over polar alignment.

Rolando

-----Original Message-----
From: M Hambrick <mhambrick563@...>
To: main@ap-gto.groups.io
Sent: Fri, Sep 24, 2021 4:47 pm
Subject: Re: [ap-gto] How Much RAPAS Misalignment is Too Much ?

Thanks Roland.

It does not sound like I need to start messing around with the alignment screws on my RAPAS until I do a more rigorous drift alignment procedure.

Mike

--
Roland Christen
Astro-Physics


Re: High Res Planetary imaging with the AP1100

Roland Christen
 

This image of Saturn was taken a couple of years ago. I don't recall the particulars any more but I believe I used my QHY 5-IIC color Cmos camera. I don't keep very good notes unfortunately.

https://www.astrobin.com/05jh1q/

Rolando


-----Original Message-----
From: Roland Christen via groups.io <chris1011@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Fri, Sep 24, 2021 4:47 pm
Subject: Re: [ap-gto] High Res Planetary imaging with the AP1100

Well, you're way ahead of me for advanced planetary imaging. I do have a few good images of Saturn with my 10" Mak when the planet was higher in the sky. I'll see if I can dig them up and post if I can find them.

I sure wish I could get decent images out of our 17", but the skies just won't co-operate here.

Rolando


-----Original Message-----
From: Rouz <rbidshahri@...>
To: main@ap-gto.groups.io
Sent: Fri, Sep 24, 2021 4:21 pm
Subject: Re: [ap-gto] High Res Planetary imaging with the AP1100

Roland,

Yes its 60s per filter, and that's RGB-RGB-RGB on loop for a few hours.

You have to use an ADC even with a mono camera.

You'll need autostakkert3 to pick the best 20 to 30% of the frames to stack each 60s batch  (about 600 frames each 60s).

And Winjupos to derotate and stack the already stacked 60s frames (complex).

--
Roland Christen
Astro-Physics

--
Roland Christen
Astro-Physics


Re: High Res Planetary imaging with the AP1100

Rouz
 

Yes the main challenge is trying to find good frames that the atmosphere hasn't turned to mush!

Also, when you have a lot of frames and very high SNR, deconvolution works like magic. But you'll need a lot of data for it to work well. Derotation is another key. Without it you are limited to a couple of minutes because of the planet's rotation. Even 3 minutes x 6000 = 18,000 frames, when you pick the best ones it isn't much data to work with.


Re: How Much RAPAS Misalignment is Too Much ?

M Hambrick
 

Thanks Roland.

It does not sound like I need to start messing around with the alignment screws on my RAPAS until I do a more rigorous drift alignment procedure.

Mike


Re: High Res Planetary imaging with the AP1100

Roland Christen
 

Well, you're way ahead of me for advanced planetary imaging. I do have a few good images of Saturn with my 10" Mak when the planet was higher in the sky. I'll see if I can dig them up and post if I can find them.

I sure wish I could get decent images out of our 17", but the skies just won't co-operate here.

Rolando


-----Original Message-----
From: Rouz <rbidshahri@...>
To: main@ap-gto.groups.io
Sent: Fri, Sep 24, 2021 4:21 pm
Subject: Re: [ap-gto] High Res Planetary imaging with the AP1100

Roland,

Yes its 60s per filter, and that's RGB-RGB-RGB on loop for a few hours.

You have to use an ADC even with a mono camera.

You'll need autostakkert3 to pick the best 20 to 30% of the frames to stack each 60s batch  (about 600 frames each 60s).

And Winjupos to derotate and stack the already stacked 60s frames (complex).

--
Roland Christen
Astro-Physics

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