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Jupiter Moon Shadow Transit

 

Scope: C8 f/30 (approx); Location: Del Mar, CA; 27 Mar. 2004; Camera: Vesta 690 

Exposure: Approx 160 x .2 sec for each of 6 images, Color CCD Exposure with IR Block. (6 Images)

Processing: Images were captured in K3CCDTools. Aligned/stacked in Registax and saved as BMP. For all six images approximately 50 of the best frames were used in the stack. The images were resampled at 1.2x and some wavelet processing was applied. Color balancing and final touches in Photoshop.

The top image is the third in the sequence presented in a single frame. The Horizontal FOV is approx 1.5'.  The two moon shadows to the left are clearly seen. There are two faint elements inside the disk of Jupiter to the upper right - these are the moons Ganymede and Io which are casting the shadows. 

The lower sequence of 6 images shows the two moons Ganymede and Io transiting Jupiter's disk with the last image showing the two moons off the limb. The first two images sow a third shadow in the upper right portion of the image. This is the shadow of the moon Callisto which is off the field of view of these images.

 

 

All images and content remain the property of Jim Thommes - copyright 2003 - 2012

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