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Occultation of Saturn - CDIP Img. 5.

Object name / Catalog Number:  Occultation of Saturn with Moon.

Camera (specific model): DSI Pro II

Number of Exposures & Exposure length: Single exposure of 0.0011 sec.

Scope: Model, Aperture and F ratio: CGE-1100 XLT F/10 + 6.3 FR.

Filters used: No filter

Image Capture Software: Envisage

Processing software: Registax 4.

Guide camera/scope (if guided imaging used): None

Other (optional): This is one of a number of exposured used for an animation of thisccultation. Locality: Attard - Malta. Date 22nd. May 2007

Original Photo
 

Photo Comments

tking2097 wrote:
"Not Qualified" - Score 2
1) Focus/Sharpness - No
2) Composition - Yes
3) Quality - No
4) Processing Skills - No
5) Exposure/Depth/Detail - No
6) Technical Bonus - Yes, merit given for very difficult subject.

Poor image data limits the potential of this otherwise great target. There are some things that can greatly enhance the presentation though - a few suggestions to try:
1. If available, stack multiple moon images, assuming the scope was reasonably locked onto the moon.
2. If #1 is not a good option, some sharpening would help the moon, through more aggressive wavelet filering in Registax, or high-pass sharpening and/or unsharp filter in Photoshop. Don't over sharpen the image though.
3. Isolate Saturn and brighten it. Not too much though, as over-brightening will reveal noise in image, or even better, see #4.
4. Option - If you have multiple Saturn images available, lock onto these in Registax and process them for a better Saturn image. Then use an overlay to place Saturn into the correct position in this image.

Even though the score is low for this rendering of the image, the merit of the image is high, due to the rare nature of the event. The basic idea is to do what you can with the image data to improve presentation of the Moon and Saturn. With some basic work, it should be possible to boost the score to acceptable.


5:33 PM on June 16, 2008

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  • Date/Time: 01-04-2008 7:16 PM

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