From Erwin van der VELDEN
® . . . . . . . Sent:
Monday, November 10, 2003 3:42 PM
Subject: Cloud
on Mars
Dear Masami,
Yesterday it was pretty cloudy
on Mars (9 November), I haven't seen so much
haze this apparition and it made the view of Mars very unusual. Seeing was good
for a change 7/10, but it lasted only half an hour, so it wasn't worthwhile to
make a second one.
Cheers,
○････････Sent:
Thursday, November 13, 2003 3:21 PM
Subject: Mars 2003-11-12
Dear Masami,
another
night with half an hour of 7/10 seeing, usually those kind of nights are coming
once every month in a couple a few days apart. Probably I have to wait a few
weeks for the next decent opportunity. The morning haze on Mars was not as
abundant as on the 9th, it looks a bit more flocky
now. Note also Olympus Mons and Ascraeus Mons as dark
spots, whereas around opposition they appeared as light spots. Is this because
they are in the shade of surrounding haze or is there another explanation? I
don't see any haze around Ascraeus...
Cheers,
○････････Date:
Fri, 14 Nov 2003 22:04:21 -0500
Subject: RE:Mars 2003-11-12
Dear Masami and Masatsugu,
Thanks for your thorough answer
and I'm happy that you find my images useful. For me it's always fun to browse
through the excellent CMO website and look at the observations of fellow
amateurs, since it can be viewed by date and by author. I've read the 267Note13
page after your suggestion and it is much clearer to me now.
It's a shame that the observing rate has
dropped so much lately to get some simultaneous observations, especially with
the highly variable haze at this moment. I'll try to make some more
observations in the coming weeks, depending on the time available of course.
Good luck with the observations
and analysing!
Cheers,
Erwin van der VELDEN (
