From: Phil Houston <pkh111@knology.net>

Date: July 1, 2006 7:44:08 PM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Jupiter June 28

Hi All,

I had an opportunity to image Jupiter showing Europa and its shadow as well as an ill defined structure up and to the left of the shadow.  I'm not a expert on Jupiter's features yet.

Using Astro IIDC, I tried a variety of settings and am still wading through the raw footage.  As suggested by Milton and Alan, some images were taken without an IR filter and the color images were binned.  The preliminary images have showed promise but the seeing had rapidly deteriorated by the time I had changed settings.  I have no definite conclusions yet.  I have posted the first image taken, using my normal approach, with an IR filter for luminance as well as for the color footage.  If any of the other images turn out better, I will make an announcement to the group.

It would be easier if I could find a red filter that also blocks IR, so far I have only seen them in sets.  Anyway, here's the  information for the image I'm showing today. ;~)

Time - 9:20 PM EDT - June 28, 2006

Location - St. Petersburg, FL

Seeing - 7-8/10

Temperature - 83 F

Winds - calm

Telescope - OTI Quantum 6, 2X Barlow, operating at F/42 

Camera - DMK 31AF03 - monochrome CCD

Luminance

Stack of 464/1055

Gamma: 1.26

Brightness: 733

Black Point: 0

Exposure: 66.67 ms

RGB Frames

Stack of 99/206

Gamma: 1.26

Brightness: 764

Black Point: 0

Exposure: 133.33 ms

Image processing:

Astro IIDC (of course) - Planetary, No fine alignment, 2X resampled

Photoshop - Levels, Unsharp mask, Gaussian blur, the RGB image was 

assembled, adjusted, and layered on the luminance image, the final 2x resampled image 

size was reduced by 50%.

http://www.knology.net/~pkh111/astrophotos/Q6jupiter.html

Look for the June 28, 2006 image at the bottom of the page.  

Phil