LtE in CMO #251

From   Edward Arnold GRAFTON

@ . . . . . . . Subject: Uranus 8/22/01 6:49 UT:

 

Uranus image : August 22 2001  06:49  UT

 

http://www.ghgcorp.com/egrafton/urgb.jpg

 

  Ed Grafton, Houston Texas, ST6 CCD, 14 inch f/11 Celestron SCT

   Eyepiece Projection @ f/60

   Integration Times:

10 BLUE  + IR rejection,  10 seconds, Edmunds filters

10 GREEN + IR rejection,  10 seconds, Edmunds filters

10 RED          + IR rejection,   10 seconds, Edmunds filters

30 no filter              10 seconds,  (luminance)

  Seeing good 7/10, transparency excellent 9/10, wind South at 5 MPH, no dew.  

 (25 August 2001 email)

 

 

 

@ . . . . . . . Hi, Masatsugu,

 

This apparition of Mars has been very interesting with it's large diameter and impressive dust storm. The 90 minute observation window between my neighbors trees has now passed with with the season and Mars is no longer visible from the C14 observatory. I still look forward to more observations from the many diligent observers supporting the CMO. The CMO been very interesting and has provided excellent analysis of the many observations made, and is much appreciated by the amateur community. I am looking forward to Mars 2003 when once again I can provide additional observations with the C14 for the CMO. 

 Sincerely     

  (30 August 2001 email)

 

@ . . . . . . . Saturn image : September 15 2001  11:14  UT

 

        http://www.ghgcorp.com/egrafton/9-15-01.jpg

(15 September 2001 email)

                                            

@ . . . . . . . Saturn image : September 16 2001  11:43  UT

 

        http://www.ghgcorp.com/egrafton/9-16-01.jpg

 

Ed Grafton, Houston Texas, ST6 CCD medium resolution mode 14 inch f/11 Celestron SCT  Eyepiece Projection @ f/66 w/10mm plossel, projected 70mm, aprox. .27 arc seconds per pixel

 Integration Times:

 

8 BLUE  + IR rejection,  .8  seconds, Edmunds filters

6 GREEN + IR rejection, .8  seconds, Edmunds filters

5 RED + IR rejection,     .8  seconds, Edmunds filters

7 No Filter             .25 seconds

 Seeing very good 8/10, transparency poor 2/10 very hazy, wind calm, light dew.

 Non linear proceesing to enhance visibility of C ring.

(16 September 2001 email)

 

@ . . . . . . . Saturn image : September 20 2001  11:18 UT

 

        http://www.ghgcorp.com/egrafton/s9-20-01.jpg

 (21 September 2001 email)

 Ed GRAFTON (Texas, USA)

egrafton@ghgcorp.com

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