Astrophotography

I know I have cable drag. When I put the Atik on the mount I had to redo my cables and it still needs some work.

I did not rebalance the mount yet. So I need to do both of those.

Willie

> On Jan 14, 2018, at 16:08, Astrophotography <astrophotography@centexastronomy.org> wrote:
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> Hi Jeff. I suspect what you are seeing on his mount is cable drag and or balance. If the stars are diagonal its usually polar alignment but his seems to be going left to right sometimes indicating drag or balance. But he does not have a heavy load so my guess cables on the mount.
>
> Aubrey
>
> -----Original Message-----
> From: mailer@mail2.clubexpress.com [mailto:mailer@mail2.clubexpress.com] On Behalf Of Astrophotography
> Sent: Sunday, January 14, 2018 2:32 PM
> To: abrickhouse1@att.net
> Subject: re: Tweaked Polar Alignment with SharpCap <<$188332629205$>>
>
>
>
>
> I know I am going to be in a tiny minority here, but if your polar alignment was that tight and you have a well balanced level mount I am surprised at the oval stars at 10 minutes. Have you done PEC training on that mount? If not, then you could be seeing periodic error in the worm. On Sat, Jan 13, 2018 at 4:37 PM Astrophotography <astrophotography@centexastronomy.org> wrote:
> Last night I tweaked my polar alignment using SharpCap's polar alignment routine. Attached is a screenshot of the reported result and a 10 minute unguided single frame that was dark corrected, opened in Nebulosity and binned with the 2x Adaptive setting and saved as a jpg.
>
> I am quite pleased with the improvement. The stars are fairly round, but not perfect. I need to work on getting my guide scope re-mounted and configured.
>
> The background is quite bright as it was taken after 6am this morning.
>
> WillieAttachment(s):
> 20180113-SharpCap-PolarAlignment.png (702.4 KB) m86-3.43C-600s-Lum-bd-2xAd.jpg (238.5 KB)
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I have not done PEC training. It was done at the factory when it was new. But the upgrade I did to the newest controller erased any stored PEC.

It needs to be done.

Willie

> On Jan 14, 2018, at 14:32, Astrophotography <astrophotography@centexastronomy.org> wrote:
>
> Have you done PEC training on that mount?

The best way I have found to check if polar alignment is the problem versus periodic error is to take a series of short photos and see if stars move from frame to frame. If your stars appear to walk your polar alignment is off in that axis.

Dave

---------- Original Message ----------
From: "Astrophotography" <astrophotography@centexastronomy.org>
To: "jde209@netzero.net" <jde209@netzero.net>
Subject: re: Tweaked Polar Alignment with SharpCap <<$188332629205$>>
Date: Sun, 14 Jan 2018 14:32:12 -0600




I know I am going to be in a tiny minority here, but if your polar alignment was that tight and you have a well balanced level mount I am surprised at the oval stars at 10 minutes. Have you done PEC training on that mount? If not, then you could be seeing periodic error in the worm. 
On Sat, Jan 13, 2018 at 4:37 PM Astrophotography <astrophotography@centexastronomy.org> wrote:
Last night I tweaked my polar alignment using SharpCap's polar alignment routine. Attached is a screenshot of the reported result and a 10 minute unguided single frame that was dark corrected, opened in Nebulosity and binned with the 2x Adaptive setting and saved as a jpg.

I am quite pleased with the improvement. The stars are fairly round, but not perfect. I need to work on getting my guide scope re-mounted and configured.

The background is quite bright as it was taken after 6am this morning.

WillieAttachment(s):
20180113-SharpCap-PolarAlignment.png (702.4 KB)
m86-3.43C-600s-Lum-bd-2xAd.jpg (238.5 KB)

Hi Jeff. I suspect what you are seeing on his mount is cable drag and or balance. If the stars are diagonal its usually polar alignment but his seems to be going left to right sometimes indicating drag or balance. But he does not have a heavy load so my guess cables on the mount.

Aubrey

-----Original Message-----
From: mailer@mail2.clubexpress.com [mailto:mailer@mail2.clubexpress.com] On Behalf Of Astrophotography
Sent: Sunday, January 14, 2018 2:32 PM
To: abrickhouse1@att.net
Subject: re: Tweaked Polar Alignment with SharpCap <<$188332629205$>>




I know I am going to be in a tiny minority here, but if your polar alignment was that tight and you have a well balanced level mount I am surprised at the oval stars at 10 minutes. Have you done PEC training on that mount? If not, then you could be seeing periodic error in the worm. On Sat, Jan 13, 2018 at 4:37 PM Astrophotography <astrophotography@centexastronomy.org> wrote:
Last night I tweaked my polar alignment using SharpCap's polar alignment routine. Attached is a screenshot of the reported result and a 10 minute unguided single frame that was dark corrected, opened in Nebulosity and binned with the 2x Adaptive setting and saved as a jpg.

I am quite pleased with the improvement. The stars are fairly round, but not perfect. I need to work on getting my guide scope re-mounted and configured.

The background is quite bright as it was taken after 6am this morning.

WillieAttachment(s):
20180113-SharpCap-PolarAlignment.png (702.4 KB) m86-3.43C-600s-Lum-bd-2xAd.jpg (238.5 KB)

Very good tweak.  The detail is very sharp.

 

Johnny

-----Original Message-----
From: "Astrophotography" <astrophotography@centexastronomy.org>
Sent: Saturday, January 13, 2018 4:37pm
To: "johnnyb@reagan.com" <johnnyb@reagan.com>
Subject: Tweaked Polar Alignment with SharpCap <<$188297310729$>>

Last night I tweaked my polar alignment using SharpCap's polar alignment routine. Attached is a screenshot of the reported result and a 10 minute unguided single frame that was dark corrected, opened in Nebulosity and binned with the 2x Adaptive setting and saved as a jpg.

I am quite pleased with the improvement. The stars are fairly round, but not perfect. I need to work on getting my guide scope re-mounted and configured.

The background is quite bright as it was taken after 6am this morning.

Willie

Attachment(s):
File: 20180113-SharpCap-PolarAlignment.png (702.4 KB) -- Address: http://s3.amazonaws.com/ClubExpressClubFiles/901132/attach/1882973_0_20180113-SharpCap-PolarAlignment.png
File: m86-3.43C-600s-Lum-bd-2xAd.jpg (238.5 KB) -- Address: http://s3.amazonaws.com/ClubExpressClubFiles/901132/attach/1882973_1_m86-3.43C-600s-Lum-bd-2xAd.jpg

Willie, this looks good. I don't think you need any more work on PA. The guiding and stacking will make these very round.

Aubrey

-----Original Message-----
From: mailer@mail2.clubexpress.com [mailto:mailer@mail2.clubexpress.com] On Behalf Of Astrophotography
Sent: Saturday, January 13, 2018 4:38 PM
To: abrickhouse1@att.net
Subject: Tweaked Polar Alignment with SharpCap <<$188297310729$>>




Last night I tweaked my polar alignment using SharpCap's polar alignment routine. Attached is a screenshot of the reported result and a 10 minute unguided single frame that was dark corrected, opened in Nebulosity and binned with the 2x Adaptive setting and saved as a jpg.

I am quite pleased with the improvement. The stars are fairly round, but not perfect. I need to work on getting my guide scope re-mounted and configured.

The background is quite bright as it was taken after 6am this morning.

Willie

Attachment(s):
File: 20180113-SharpCap-PolarAlignment.png (702.4 KB) -- Address: http://s3.amazonaws.com/ClubExpressClubFiles/901132/attach/1882973_0_20180113-SharpCap-PolarAlignment.png
File: m86-3.43C-600s-Lum-bd-2xAd.jpg (238.5 KB) -- Address: http://s3.amazonaws.com/ClubExpressClubFiles/901132/attach/1882973_1_m86-3.43C-600s-Lum-bd-2xAd.jpg

Last night I tweaked my polar alignment using SharpCap's polar alignment routine.  Attached is a screenshot of the reported result and a 10 minute unguided single frame that was dark corrected, opened in Nebulosity and binned with the 2x Adaptive setting and saved as a jpg.

I am quite pleased with the improvement.  The stars are fairly round, but not perfect.  I need to work on getting my guide scope re-mounted and configured.

The background is quite bright as it was taken after 6am this morning.

Willie

Attachment(s):
File: 20180113-SharpCap-PolarAlignment.png (702.4 KB) -- Address: http://s3.amazonaws.com/ClubExpressClubFiles/901132/attach/1882973_0_20180113-SharpCap-PolarAlignment.png
File: m86-3.43C-600s-Lum-bd-2xAd.jpg (238.5 KB) -- Address: http://s3.amazonaws.com/ClubExpressClubFiles/901132/attach/1882973_1_m86-3.43C-600s-Lum-bd-2xAd.jpg

Attached is a jpg of the screenshot. That is what I intended to post the first time. It is a much smaller file.

Willie

Last night I tweaked my polar alignment using SharpCap's polar alignment routine. Attached is a screenshot of the reported result and a 10 minute unguided single frame that was dark corrected, opened in Nebulosity and binned with the 2x Adaptive setting and saved as a jpg.

I am quite pleased with the improvement. The stars are fairly round, but not perfect. I need to work on getting my guide scope re-mounted and configured.

The background is quite bright as it was taken after 6am this morning.

Willie