LtE in CMO #277

From Harold HILL

Cloud?  One at the p limb over Phoenicis L region seems

to bulge slightly beyond the terminator.

This was not seen one hour earlier.

Whitish patches along the n coastline of M Sirenum between the projections

 - do not think these are contrast effects because M Sirenum too pale

Dear Dr Minami,

I trust you received my letter which was sent to you per Air Mail on July 10. Since then I have continued with my observations of the planet at every possible opportunity. Handicapped on many mornings by rather poor seeing, and with Mars being at a low altitude for northern observers there have been few occasions when the planet has been seen to advantage. I always try to make 'finished' drawings in colour based upon my observing notes and have Impression of June: 25, 26, 28 & 29; July: 2, 4, 7, 13, 16, 20, 22, 26 & 27;  August 3, 4, 6, 9, 10, 11, 13, 14 & 16 of these I have selected two made from observations on August 9 & 14 and offer them for your possible interest as I consider them my best views to date. I found the surface markings pale in August and was inclined to ascribe this to partial obscuration (by dust?) and had considerable difficulty in making out the features of the Solis Lacus region. However, under some very good moments on Aug 14 both Solis L & Tithonius L came through splendidly with a suspected Ascrĉus L. It was noticeable on this occasion that the colouration generally was more distinct although the planet was more yellowish to the naked eye rather than ruddy. I append my observing notes for the drawings on a separate sheet and hope that perhaps you can send me copies of your excellent bulletin to inform me what better observers -- both visually and instrumentally -- have been recording.


Yours very sincerely


(18 August 2003)


Harold HILL (Lancashire, England)

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