A Mars Map, representing a complilation of Mars sketches Opposition 2007,2008
Sketches and Details by Kris Smet
In January I posted the sketches I managed to make up to then, later I added 7 more sketches and tried to make a marsmap based on my them. Just when I felt I was getting familiar with the various martian features on the disk, the opposition was rapidly coming to an end. I can’t choose any one sketch as my ‘favourite’ but it would have to be the last one then. It was my first, and ironically also last, view of the sinus sabaeus region of that opposition. Luckily the seeing was good and I was able to make a decent observation. The later sketches are also less crude but have a more soft finish, which i’ve been struggling to do from the beginning.
Mars sketches Opposition 2007,2008
by Kris Smet
My earlier report from January:
I started observing Mars early in July to make the most of the opposition in December when the planet’s disk reached almost 16“. However the first few sketches may not look like much, I believe making the sketches helped me gain more experience
over the months. Putting the colour of mars on paper was much harder than I thought it would be, I’ve tried a few different colours but kept changing them because I wasn’t completely happy with it. The last sketch in my opinion looks most as how
Mars appears to my eye in the scope. (All sketches were done with my 8” f/5 reflector on equatorial mount btw, I didn’t took the tube from the dobson base until October though.)
All sketches are made outside sitting at the scope, with plain A4 printer-paper on a clipboard on my lap. After the scope is brought back inside I work the sketch out with colours and scan them in on my computer. The only ‘processing’ I (sometimes) do
is adjusting the brightness and sharpness levels a bit to look a bit more eyepiece-like.
If you look very closely you can see the small disappearing south polar cap on the first 5 sketches, after that I couldn’t detect it anymore. During September and the first part of October the north polar hood appeared bluish to me, but it seemed to disappeared and on the 14 October sketch the hood doesn’t show any blue. While Mars was showing me it’s so called ‘boring side’ during September and October (accept 5/10 & 31/10) I had the impression that the area south of mare Sirenum, Cimmerium and Mare Tyrrherium was brighter and more yellow than the desert plains laying south of them. In December I had some very good views of the Syrtis Major region in which I could see some detail. I had to wait until early 2008 to get my first view of the Solis
Lacus region, because whenever this side was facing earth I was clouded out :p
I hope to get more viewing time during January, February and perhaps March to make another ‘collage’ of Mars sketches.)
