Here are my Venus observations for the first week of March.

Again, one UV filter has been used, but a variety of IR filters. This time they 
all use the same telescope, the 10" Cassegrain.

The bright polar cusps continued to be prominent in UV as in the previous month. 
Most noteworthy was the occasion of March 01, when the I saw the dark marking 
more clearly visually than I have done on any other occasion. Using a Meade no. 
47 violet filter it was extremely obvious, as reflected in the UV image (an 
attempt to image using the no. 47 filter produced a poor result, probably 
because of IR transmission). There is, however, no evidence of markings in IR.

[David Arditti: Edgware Middlesex HA8 5LW: United Kingdom]