LtE in CMO #272

From Christophe PELLIER

@ . . . . . . . . . .Dear Masatsugu,


I have received the paper copy of CMO 270 today. Many thanks for that ! The article about the possible linkage between solar activity and dust activity on Mars is very interesting. The weather is cloudy now here and must remain so until many days, but I just hope to send you more images as soon as possible.

                      (30 April 2003 email)

@ . . . . . . . . . .Subject: Mars may 3, 2003


 This is my latest Mars observation from this morning. Seeing was better and transparency excellent. I think that the SPC is clearly caught this time. Argyre may still be covered by frost, as it seems to be light in the red image. Solis Lacus doesn't look very dark. My apologies for the "false alert" of my april images where I saw bright areas. I'm almost certain now that this was due to a brighter albedo of the desert of Mars, as for this image some parts were again nearly saturated until contrast was seriously lowered.

Best regards

       (3 May 2003 email)


@ . . . . . . . . . .please find attached some images of the transit of Mercury this morning. Conditions were somewhat good but there was absolutely no solar details next to the planet, unfortunately, and I had some computer problems at the end...

                   (7 May 2003 email)


@ . . . . . . . . . . Date: Fri, 9 May 2003 12:44:36 -0000

Subject: Mars may 10, 2003


Seeing on Mars this morning was quite correct for the 17 degree altitude, but coming clouds didn't allowed me to wait for the planet to get higher in the sky.


The western border of Syrtis Major, Sinus Sabaeus and Sinus Meridiani are easily seen. I find that the area of Argyre is still light, as seen on the first Mars images of Paolo Lazzarotti and Cristian Fattinnanzi over the last week.

                       (9 May 2003 email)


@ . . . . . . . . . .Another Mars, still under poor to fair seeing. But this is the first time that I manage to get an image through the blue filter W38A... OK so the next challenge now is to obtain details with that filter :-The color image is a result of an LRGB, with the G image being synthesized between Red and Blue.

      (12 May 2003 email)


@ . . . . . . . . . .here is a Mars image from this morning. Despite my unfavourable latitude I find that the observing conditions are really improving and I didn't expect to see so "much" on these images... The "Lowell band" is impressive. Finally I can work with the W38A filter to make a blue image but it lets IR pass (a faint IR Mars was barely visible on the screen, several arcseconds shifted from the blue wavelenghts) so I need to wait for a new equipment. For the mars observers group, I have uploaded the image in the recent images folder (it's in the second page of that folder now), but you can also follow this link :


Best wishes

                  (25 May 2003 email)



Christophe PELLIER

(Bruz, Ille-et-Vilaine, France)


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