I meant to post this to the AP-UG group and then I was going to post to this group so I guess I just did post to this group. Robert

I have been on the AP-GTO group for a while but just joined this group as I have an AP 155 EDFS scope. After seeing a few images of the Owl Cluster I decided to give it a try. I have not done a lot of

Thanks Jim. I was surprised that the shutter issue did not affect it at such short exposures. Robert

I was imaging the Crescent in Ha with an almost full Moon and had to get some shots of it before I stopped imaging for the night. http://www.pbase.com/rchozick/image/157338374 Robert Chozick rchozick@

I think I am understanding this better. So, because of the nature of our atmosphere our apparent view of the stars relative to their true position is always changing and varies differently for each pa

So, the RA drift method is the opposite of the DEC drift method as to which adjustment you do in the South versus East/West (South AZ and E-W ALT for DEC drift and E-W AZ and South ALT for RA drift)?

I understand. My confusion came from your words Classical drift alignment. I was not aware that anyone just did a drift alignment for DEC only. I only knew of one form of drift alignment and that is f

I guess the difference is that I call drift alignment the adjustment of both altitude and azimuth, not just azimuth. It is what I do every time I set up my mount in a new place to get better polar ali

I'm confused. When I drift align I do it at the meridian at the equator to correct azimuth and at the equator to the east to correct altitude. Is that what you call classic drift alignment? In my expe

It was supposed to say "M 27". That's what happens at 3:00am. Robert Begin forwarded message:

Thanks Anthony. The Subject line was wrong. It is supposed to be the Dumbbell. That's what happens at 3:00 am. Robert

I shot some all 2x2 subs with my Celestron EdgeHd 8 inch scope on my Mach1. With the 8300 chip 2x2 seems to work well at 2000mm but you cant keep the size of the final too big. I had to crop a lot any

That is a really cool shot. The colors and clarity of the trails make this stand out. Your polar alignment is great. I love AP scopes. Robert

I agree. Companies are making mounts only with complex astrophotography in mind. It's great AP allows a simple use. I use the keypad even with doing astrophotography. Robert

Thanks. The RGB really only adds a little to the image and is mainly for the stars. I am still playing with how to incorporate Ha. I am trying Adam Block's method of adding the Ha to the red channel a

Thanks Roland. Robert

I took a little RGB and a few Ha subs on the Crescent from my Dallas suburb light polluted skies. When I don't have to stay up so late later in the year I want to get some OIII on this. The Ha is only

I have never had something so stuck. Every time before I could separate them. I have a few other things that stick a lot. I will definitely use some product to try to prevent it. Robert

Great detail. Robert

Beautiful Roland. Robert