[AZ-Observing] Re: M13
- From: George Kolb <geokolb@xxxxxxxxx>
- To: "az-observing@xxxxxxxxxxxxx" <az-observing@xxxxxxxxxxxxx>
- Date: Sun, 21 Apr 2013 13:36:43 -0700
Albert,
I remember when I used to use an OAG on my Meade 10" SCT and how difficult it
was to find a suitable guide star. I guess a little planning ahead of time
might assist in determining if a suitable star exists in the FOV of your
potential image. Are you picking off the guide star before or after the LRGB
filters.
Very nice image. Crisp with good color.
Thanks, George
Sent from my iPad
On Apr 21, 2013, at 12:22 PM, Albert Barr <ajbarr@xxxxxx> wrote:
> Last night I spent several hours tinkering with my new OAG and Lodestar guide
> cam. It's a whole different ball game and very difficult to set up. Maxim
> could not find decent guide stars and kept going to pixels instead. A friend
> of mine suggested doing dark calibration on the guider image. I did that and
> it seemed to work ok. So by 11 PM I noticed M13 was high enough to image and
> I put an hour and 15 minutes of RGB, all unbinned on it. I did all 300 second
> exposures. All the subs looked perfect and so far I think this is probably my
> nicest image with the Edge 8, which has been very frustrating to use ever
> since I got it. This image was fully calibrated and post processed in
> PixInsight with some Photoshop. Despite the moon, background gradients were
> pretty minimal. Here's the link:
>
> Albert
>
>
> http://www.flickr.com/photos/49526053@N04/8668562143/in/photostream/lightbox/
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