From: Milton Aupperle <milton@outcastsoft.com>

Date: October 7, 2008 4:27:16 PM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Heart Nebula

Hi Dale;

Very nice image, thanks for sharing. I wasn't aware of the Heart Nebula at all, and it's only a bit above the double open cluster in Perseus too. I'll add it to my list of targets for this winter.

A couple of questions.

- What was the original image resolution (xxx by yyy pixels) from the camera?

- Are you shooting Bayer RAW, TIFF or JPEGs?

- Are you averaging or summing the 60 images when you stack to create the work image?

- In your information on the site (great to see some details on what your using and doing) it says your using a "Astronomik CLS Filter". I take it that really helps eliminate the light pollution at your location?

- How light polluted are your skies (i.e. what sort of background is your DSLR camera picking up for 6 minute exposures) and how deep can you see visually?

Thanks in advance..

Milton J. Aupperle

On 6-Oct-08, at 6:29 PM, Dale J Martin wrote:

Hi folks,

Here is another image of the Heart Nebula with 60 frames at 6 minutes each. I this the first image I have taken using the Bahtinov Mask, I think this is my best focus to date.

htt