From Edward Arnold GRAFTON
@ . . . . . . . . . .Subject: Jupiter Observation
Hi Jupiter Observers.
Here is an observation from
Presented are three images. The color composite is made from
29 unfiltered images and 5 each rgbs. The middle
image is made from the best three from the 29 data set and the right image is
made from the best single image. The color image seems to show the SSTB ovals
as an elongated unit. However the 3 image composite and the single image seem
to show that the ovals may yet still have some distinct characteristics. The
assumption is that the color composite from 29 images is of lower resolution (as
the seeing was only 5/10) since many marginal images were used
to improve the S/N. More high resolution images are needed. Also note the
interesting detail in the northern latitudes.
The sky was hazy with
cirrus clouds, transparency fair 4/10, and seeing was average, 5/10, with a 5
mph E. wind. No dew was present. The weather was mild with the temperature
about 70 F.
Jupiter image :
http://www.ghgcorp.com/egrafton/03-28-02.jpg
Ed Grafton,
Barlow Projection to f/27
aprox .21 arc seconds per pixel.
Image data:
5 BLUE + IR rejection,
.3 seconds, SBIG filter
5 GREEN + IR
rejection, .3 seconds,
SBIG filter
5 RED + IR rejection, .3 seconds, SBIG filter
~29 clear filter,
No IR .12 seconds, SBIG filter
(
Ed GRAFTON (
