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Mars Image 2010/01/20(UT)
Jim Phillips,Dave and Gail Bleser,Bruce Worsley,Paulo Casquinha,Carlos.E.Hernandez,Donald C Parker,Jesus R.Sanchez
J.Phillips,D&G.Bleser,B.Worsley,P.Casquinha,Carlos.E,Don,J.Sanchez
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Jim Phillips(TMB 8" F/9 apochromat) |
A very nice evening under the stars. Note the white cloud over Olympus Mons.
For my non-amateur astronomy friends it is the small white oval at the left of planet near the edge.
[Jim Phillips South Carolina,U.S.A.]
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Dave and Gail Bleser(356mm SC) |
Good conditions.
59F,clear sky,no wind but very dewy requiring us to turn on heater strip.
This set was the best 300 frames out of a total of 1500 frames taken at 60 fps.
Clouds over Olympus Mons on edge of planet at the 8 o'clock position.
[Dave and Gail Bleser:North Miami Beach:USA]
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Bruce Worsley(SC-8 203mmSC) |
Bruce Worsley(SC-8 203mmSC)
Trans 4-5 Seeing 3-5
[ Bruce Worsley : Cooper City,Florida U.S.A]
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Paulo Casquinha (C14 355mmSC) |
Hi,here is my first Mars from this season,hope itfs not the last J,since
the rain is back again !!!
Some fair to good imaging conditions.
(site: 38.567 N /8.933 W Alt 124 m)
[Paulo Casquinha Palmela,Portugal]
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Carlos E. Hernandez (Drawing:9-inch (23-cm) F/13.5 Maksutov- Cassegrain) |
I observed Mars on January 20,2010 under average seeing conditions with brief
moments of steady seeing (5-7/10). I noted an interesting complex of orographic
clouds over Tharsis on the evening (preceding) limb. A cloud was also noted over
Elysium.
Date (U.T.) January 20,2010
Time (U.T.): 03;30-04:30
CM (Degrees West): 176.6-191.3
Ls 040.3* (Mid-Northern Spring/Southern Autumn)
De: 15.8*,Ds 15.7*,Phase 100%,14.0 arc-seconds
Instrument: 9-inch (23-cm) F/13.5 Maksutov-Cassegrain
Magnification: 295x and 388x
Filters (Wratten): 30 (Magenta) and 80A (Blue)
Seeing (1-10): 5-7,Antoniadi (I-V) III-II
Transparency (1-6): 5
Notes:
03:45 U.T. (CM 180.3*W,Wratten 30 (Magenta)): The North Polar Cap (NPC) was
brilliant (10/10) without any detail visible within it. The North Polar Cap
(NPC) collar was produced by Lemuria which appeared dark to dusky (3-4/10). The
region extending between Trivium Charontis (3-4/10) and the Propontis Complex
(3-4/10; also including Azania (6/10),Phlegra (4/10),and Styx (4/10)) appeared
mottled but somewhat subdued possibly due the opposition effect
( http://www.absoluteastronomy.com/topics/Opposition_effect ). Elysium is
visible following the central meridian (CM) and appeared bright to very bright
(7-8/10)with a haze (cloud) over it. Mare Sirenum (3-4/10) was visible preceding
and Mare Cimmerium (3-4/10) following the CM. Valhalla was visible a dusky
(4/10) streak north and parallel to Mare Sirenum and Mare Cimmerium. Orographic
(Mounatin-associared) clouds were visible along the evening (preceding) limb and
appeared very bright (8/10).
04:30 U.T. (CM 191.3*W,Wratten 80A): The North Polar Cap (NPC) appeared
brilliant (10/10). A bright to very bright (7-8/10) cloud was visible over
Elysium. Orographic (Mountain-associated) clouds were visible over the evening
(preceding) limb and appeared very bright (8/10). The preceding
(evening)/southern/following (morning) limbs appeared very to extremely bright
(8-9/10).
The best of luck to you,your family,and the members of ALPO Japan.
[Carlos.E. Hernandez South Florida U.S.A ]
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Donald C Parker(16-in (41cm) Newtonian) |
I have attached RGB images of Mars from 20 January. The Olympus Mons orographic cloud is bright on the terminator; the Syrtis Blue Cloud is visible in the second image. Monochrome,UV and NIR images to follow.
I have attached the monochrome Mars images from 20 January plus the UV and NIR images.
[ Donald C Parker Coral Gables,Florida U.S.A]
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Jesus R.Sanchez(280mm SCT) |
[ Jesus R.Sanchez : Spain]
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