From
P
Clay SHERROD
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Subject:
Mars, July
10, 2003
Very turbulent air this morning and I was lucky to get even
this it seems; some interesting features appearing in mid-latitudes.
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Subject:
Mars -
July 13, 2003
An image of Mars from this morning; stepped the focal ratio
of the 16" up to f/35 and produced better results under still-poor seeing
conditions. Olympus Mons and Phoenicis Lacus are clearly identified on western
limb.
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Subject:
Mars, Steady skies July 14
Finally got a bit of steady air this morning thanks to some thick
fog; images shows Mars at f/35 via
the Toucam, 890 images stack with IR block; 0.41m
SCT.
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Subject:
Mars,
July 15 / Tharsis volcano visibility
Mars this morning under poor seeing, but the Tharsis
volcanoes are clearly seen; these images are one hour apart and it is clear
that the sunrise angle on these peaks clearly plays into their visibilities as
the features near sunset and the angles become more pronounced (the 10:15 UT
image).
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Subject:
Daedalia dust? July 16,
2003
Good morning....again very unstable air plagues our attempts
but two images obtained about an hour apart early this morning. However, in the later image, there appears to
be a possibility of dusty obscuration immediately east of Daedalia and slightly
SW of Mare Sirenum.
Note that even without the strong terminator shadow present, Olympus Mons is clearly visible near the CM.
® . . . . . . . .Date: Thu,
Subject:
Mars/Olympus
Attached is our image of Mars from this morning (July 17)
in fair skies and steadiness; much detail visible around the Solis Lacus, but I
want to point out the continued red veil over and around Olympus Mons as
reported yesterday by Don Parker and others.
Very curious and seemingly more intense than recorded
yesterday. Note the small
brownish- yellow cloud located between Mare Sirenum and Daedalia as reported
yesterday.
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Subject:
Intense white spot on SPC perimeter
I would like to point out to Mars observers a very prominent
scintillating white spot seen in all of our images from this morning on the
perimeter of the SPC, near the melt line, but just inside the white cap itself. The very bright and small spot is clearly
visible in the image just posted at ASO (link in forwarded message below) but
also in images that are currently being processed and will be distributed very
soon. Without a final measure, the spot
appears to be at about CM 135 deg. and just inside the SPC perimeter; it is so
intense that this could be easily distinguished on the closed circuit TV while
imaging and I strongly suspect that it was clearly visible visually to the
trained eye.
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Subject:
More Mars, ASO, July 17
Two additional images from later this morning; the Tharsis volcanoes
are well demonstrated as are reddish features in this region that do not appear
to be processing artifacts ,as they are rotating with the planet.
Note also the scintillating white spot on the SPC perimeter
(somewhat overshadowed in glare on these two images).
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Subject:
ASO Mars, July 18
A couple of fairly detailed
images from this morning (July 18 UT) showing the vicinity of Solis Lacus and
surrounding areas.
Of particular interest again this morning is the very bright
scintillating spot on the SPC perimeter nearing the CM on the
Note also the reddish hue associated with the volcanic peaks
in the Tharsis region; Olympus Mons and others are well shown in both images. As always these are taken with the ASO Petit
Jean telescope, a Meade 16" SCT operating at f/35 and Toucam with Registax.
Dr Clay SHERROD (
Harvard/MPC
H43 (
Harvard/MPC
H41 (Petit
