From: Phil Houston <pkh111@knology.net>

Date: June 17, 2006 12:16:40 AM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Jupiter June 15

Here's another Jupiter image, this one showing Ganymede's shadow and Io off tho the right of the planet.  Imaging information follows.

Time - 10;06 PM EDT -  June 15, 2006

Location - St. Petersburg, FL

Seeing - 8/10

Temperature - 81 F

Winds calm

Telescope - OTI Quantum 6, 2X Barlow, operating at F/42 ( roughly 6 meters)  producing an image diameter of 283 pixels for 42.3" arc planet .  (.149 arc sec./pixel)

Camera - DMK 31AF03 - monochrome CCD

Luminance Frame

Stack of 458/1019

Gamma:  1.30

Brightness: 756

Black Point: 0

Exposure: 66.67 ms

RGB Frames

Stack of 100/200

Gamma:  1.30

Brightness: 818

Black Point: 0

Exposure: 133.33 ms

Image processing:

Astro IIDC - Planetary, No fine alignment, 2X resampled

Photoshop - Levels, Unsharp mask, Gaussian blur,  RGB image was produced, adjusted, and layered on the luminance image,  final image size was reduced.

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

Next time I will try Milton's and Alan's imaging and processing suggestions.

Phil