WARELL #215

Letters to the Editor

from Johan WARELL in CMO #215

@ . . . . Today I have put on the mailbox six observations of Mars made the past week and a half. We finally got some spring here and a rather stable high pressure area which gave us a few clear nights.
In the end of March there was a distinctly yellowish bright cloud on the morning limb over Tharsis, very extended. A week later, Hellas was very apparent on the evening limb.
The low altitude of Mars results in troublesome seeing conditions and not much detail seen, but I plan to follow it when weather conditions allow.
I will perform spectrophotometric observations and multiband imaging of Mercury at the Swedish Solar Telescope on La Palma in late April, and will take the opportunity to image Mars too.

(7 Apr 1999)

Johan WARELL (Uppsala, SWEDEN) : Johan.Warell@astro.uu.se
http://www.astro.uu.se./~johwar