Mars - 2003

Hogg 0.60 m telescope, CASLEO, Argentina

Copyright 2003, 2004 Michael Snowden, New Zealand



Processed with AstroStack 3 by Robert Stekelenburg.


Method used:

First a number of raw unprocessed images where corrected for guiding errors (aligned) and then coadded (stacked).
Then the resulting stacked image was processed: resolution improvements resulted from a technique involving deconvolution and contrast enhancement. The U-band images where strongly contrast enhanced to bring out subtle details.
All raw images in a series where used, no effort was made to select the best raw images prior to aligning, stacking and processing. No use of flats or darks, no use of specific PSF. All processing was performed with AstroStack 3.


Pictures (South is up)

Figures 1-4a: single raw unprocessed image; Figures 1-4b: processed image stack.

Original raw image (best of stack)
Processed stack
Figure 1:

2 sept 2003
I band
mars902-I
mars902-I
Fig. 1a:   03:19:46 UT
Fig. 1b: Stacked 22 images



Figure 2:

21 sept 2003
I band
mars921-I
mars921-I
Fig. 2a:   04:40:14 UT
Fig. 2b: Stacked 25 images



Figure 3:

2 sept 2003
U band
mars902-U
mars902-U
Fig. 3a:   05:33:05 UT
Fig. 3b: Stacked 43 images, contrast enhanced



Figure 4:

21 sept 2003
U band
mars921-U
mars921-U
Fig. 4a:   04:18:06 UT
Fig. 4b: Stacked 25 images, contrast enhanced