Saturn Occultation May 22, 2007

clic for 30% size 1125 x 1322 (200 kB)

clic here for 50% size 1875 x 2203 (496 kB)

 

About this Image

For the second occultation of Saturn by the Moon this year from Europe the weather cleared up just after the Saturn slipped behind the Moon at 19h30 UT.
At 20h36 UT the planet reappeared completely within less than a minute. This is shown in the collage above.

To show the view as seen from the eyepiece of a telescope and to prevent an overexposure of the Moon's surface a longer exposure was chosen for the planet.

Below you see a crop of the above image in 75% size.

 


Technical Details
Optics

16" cassegrain in secondary focus at f/10

Mount MK-100 GEM
Camera SBIG STL-11000M at -15C, internal filter wheel for the Moon,
DMK21BF04 firewire webcam for close-up
Filters Astronomik L, IR-pass
Date May 22, 2007.
Location Wildon/Austria
Sky Conditions unstable seeing, temperature 20 C
Exposure STL: L = 0.03 sec for Moon (single exposure)
Webcam: 1/30 sec at f/10 IR-pass, RGB
Processing Layering of exposures, color balance, unsharp mask in Photoshop;
north is up;