> From egrafton@ghg.net Mon Dec 23 20:10 MST 2002 Date: Mon, 23 Dec 2002 21:08:32 -0600 (CST) From: egrafton@ghg.net (Ed Grafton) Subject: Jupiter Observation 12-22-02 09:46 UT Hi Jupiter Observers Here is an observation from Houston Texas December 22nd 2002 at 09:46 UT. The GRS has taken on a bulls eye or doughnut appearence as dark matter nearly surrounds it. Also the dark area to the S. and following the GRS has elongated when referenced to Damian Peach's image from the 19th. The NTB seems stable in its present configuration of being split. The transparency was poor to fair with fog increasing, 4/10, and seeing was good, 7/10 with no wind. Heavy dew was present. The weather was mild with the temperatures in the low 60s F in the early mourning hours. Jupiter image: http://www.ghg.net/egrafton/j12-22.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: 10 BLUE + IR rejection, .3 seconds, SBIG filter 10 GREEN + IR rejection, .3 seconds, SBIG filter 10 RED + IR rejection, .3 seconds, SBIG filter ~50 clear filter, No IR .14 seconds, SBIG filter Ed Grafton PS: If you would like to be removed from this email list, please let me know. > From drclay@arksky.org Tue Dec 24 05:15 MST 2002 From: "Clay Sherrod" Subject: Re: Jupiter Observation 12-22-02 09:46 UT Date: Tue, 24 Dec 2002 06:13:26 -0600 Ed's photo is showing clearly in my opinion that we should alert all observers to the very rapid transition that is taking place in and around the GRS; the change is in the order of hours, not days at this time and I have suggested that we really need to alert folks to these ever-changing developments. The presentation of the GRS at this time compared to just one week ago in Damian's images is incredible...if nothing else the overall apparent area that is extends a this point compared to one week ago. Can we get some type of notice out on this folks? This is probably the most interesting series of rapid changes that have taken place on so great a scale on the Spot in some time and certainly deserves some explanation to others and attention by all! Great job as usual Ed.... (Ed- please note new e-mail address!) Clay ---------------------------------------- Dr. P. Clay Sherrod drclay@arksky.org Arkansas Sky Observatory MPC/cbat Obs. H43 www.arksky.org