Re: Best Way To Determine Periodic Error?
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Hi Sonny
UI really think what you are seeing is field rotation due to polar misalignment - it's not about the quality of the guiding, although i suspect your guiding is reasonably good
as your target moves across the sky, it is tracked, but the polar misalignment causes your framing to rotate. when you image for extended perior?of time, that can be quite a lot.?
I mentioned this before, but there's an easy way to visualize this if you re-stack your images with Maximum integration mode instead of average.
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On Fri, Jul 3, 2020 at 10:43 AM, Michael Herman wrote:
Have fun and continued progress and success.
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Michael
Hi Michael, Thank You for the reply.
I certainly hear you about the Orion (lack off) Quality issue. My Orion G3 was a POS out of the box, then things got worse. It's so dead now it can't be used at all, but the freakin fan runs.
Please correct me if I'm wrong, but the soul purpose of a guide camera is to find a single star, lock onto that star, then the guiding (PHD2) sends the guiding pulses to the mount to guide on that single star. (In a nutshell)
Since I'm a dolt about getting things right, I was wondering about that Smeartation I was seeing. (My word. I made it up. Makes as much sense as "Sticktion", a WW2 terminology)
I almost always just use the Auto in PHD to pick a star for guiding. The latest version has a nifty picker button that gets the guiding on right away. Love that improvement. Makes my life much simpler and quicker to get to imaging.
I do like the USB3 attributes, and hunkier connectors. But my USB cable (for one thing) is a USB 2 configuration. So no need for a USB3 camera, because it's going to get knocked back to USB2 anyway. Of course, no need to let a $9 cable spoil the party. If I can find a 15' USB3 cable, I'll buy it just to have my USB3 Star Tech hub connected to my Baby Dell at it's USB3 port. Can't hurt to give it as much speed from the hub at the telescope, to the computer. Even if my cameras are USB2.
Oh! This mud is thick!
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SonnyE
(I suggest viewed in full screen)
-- Brian?
Brian Valente portfolio
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