LtE in CMO
#276
From Erwin Rene van der VELDEN
® .
. . . . . . . Sent: Wednesday,
July 30, 2003 1:16 AM
Subject: Tharsis Volcanoes
Hi
everyone,
My latest Mars observation
(on 27 July
2003) was with a reasonable seeing 6/10 to 7/10, and show
the volcanoes in the Tharsis region with a cloud over Arsia Mons. The best
seeing was during the recording of the image from 17:17 - 17:23 UT,
and this image shows Ascraeus Mons, Pavonis Mons, Arsia Mons and Olympus Mons
the clearest. Note also the colour change of the bright limb within one hour, this is not due to a change in atmospheric dispersion!
I also stacked the Olympus Mons region from the data of all selected frames to
provide a better view of the volcano.
Cheers,
Erwin van der
VELDEN (Brisbane,
Australia)
ErwinvanderVelden@compuserve.com
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