LtE in CMO #285

From Edward Arnold GRAFTON



. . . . . . .Date: Tue, 9 Dec 2003 17:31:07 -0600 (CST)

Subject: Saturn December 7th 2003

 

Hi Saturn Observers

 

Here is an observation from December 7th 2003. There are several features that can be seen to rotate with the globe of Saturn. The sky was clear, transparency was very good 8/10, and seeing was very good to excellent 8-9/10. No wind and light dew. The temperature was cool in low 40s F.

 

Saturn image: http://www.ghg.net/egrafton/12-07-03.jpg

 

Ed Grafton, Houston Texas, ST5C CCD and a 14 inch f/11 Celestron SCT

 

Barlow Projection to f/27 aprox .21 arc seconds per pixel.

 

Image data:

 

Red filter, .6 sec

Green filter .8 sec

Blue filter 1.0 sec

Clear filter, No IR .3 sec

 

. . . . . . .Date: Sun, 14 Dec 2003 22:51:54 -0600 (CST)

Subject: Mars Observation December 15th 2003 @ 0:36 UT

 

Hi Mars Observers

 

Here is an image from December 15th 2003 @ 0:36 UT. The dust cores are quite prominent. The sky transparancy was excellent 9/10, and the seeing was fair to good 6/10.

 

C14 @ f/39, ST5 CCD

 

Image at: http://www.ghg.net/egrafton/12-15-03.jpg

RED + IR rejection, .2 seconds, Edmund filter

GREEN + IR rejection, .4 seconds, Edmund filter

BLUE + IR rejection, .6 second, Edmund filter

Luminance, IR + Red , 600-1000nm .07 seconds, Edmunds filter

 

. . . . . . .Date: Wed, 17 Dec 2003 21:29:53 -0600 (CST)

Subject: Mars Observation December 18th 2003 @ 0:17 UT

 

Hi Mars Observers

 

Here is an image from December 18th 2003 @ 0:17 UT. Looks like the Dust storm is expanding. The sky transparency was excellent 9/10, and the seeing was fair to fair 4-5/10.

 

C14 @ f/39, ST5 CCD

 

Image at: http://www.ghg.net/egrafton/12-18-03.jpg

RED + IR rejection, .2 seconds, Edmund filter

GREEN + IR rejection, .4 seconds, Edmund filter

BLUE + IR rejection, .6 second, Edmund filter

Luminance, IR + Red , 600-1000nm .05 seconds, Edmunds filter

. . . . . . .Date: Fri, 19 Dec 2003 12:09:03 -0600 (CST)

Subject: Mars Observation December 19th 2003 @ 0:19 UT

 

Hi Mars Observers

 

Here is an image from December 19th 2003 @ 0:19 UT. The sky transparency was excellent good 8/10, and the seeing was poor 2/10.

 

C14 @ f/39, ST5 CCD

 

Image at: http://www.ghg.net/egrafton/dec19th.jpg

Luminance, IR + Red , 600-1000nm .05 seconds, Edmunds filter

 

. . . . . . .Date: Fri, 19 Dec 2003 20:47:33 -0600 (CST)

Subject: Mars Observation December 20th 2003 @ 0:55 UT

 

Hi Mars Observers

 

Here is an image from December 20th 2003 @ 0:55 UT. The sky transparency was very good 8/10, and the seeing was poor to fair 3/10.

 

C14 @ f/39, ST5 CCD

 

Image at: http://www.ghg.net/egrafton/dec20th.jpg

Luminance, IR + Red , 600-1000nm .05 seconds, Edmunds filter

. . . . . . .Date: Sun, 21 Dec 2003 16:23:21 -0600 (CST)

Subject: Mars Observation December 21st 2003 @ 0:11 UT

 

Hi Mars Observers

 

Here is an image from December 21st 2003 @ 0:11 UT. The sky transparency was very good 8/10, and the seeing was to fair 4/10.

 

C14 @ f/39, ST5 CCD

 

Image at: http://www.ghg.net/egrafton/dec21st.jpg

Luminance, IR + Red , 600-1000nm .05 seconds, Edmunds filter


Ed GRAFTON (Houston, Texas, USA)

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