I made a pair of Mars observations on November 7, 2005 (02:15 and 02:50 U.T.) under average seeing conditions (5/10, the atmosphere did steady for brief moments to 6-7/10). Electris and Eridania appeared bright and both exhibiting a mildly yellow-mustard color (dust?). "Valhalla" was diffusely visible following the CM. I welcome any comments on my observations.
Date (U.T.): November 7, 2005
Time (U.T.): 02:15 (left image) and 02:50 (right image)
CM: 183.7 (left image) and 192.2 (right image)
Ls: 319.8 (Mid-Northern Winter/Southern Summer)
De: -15.3, Ds: -15.7, p 1.00, 19.94"
Instrument: 9" F/13.5 Maksutov-Cassegrain
Magnification: 248x and 388x
Filters (Wratten): 30 and 38A
Seeing (1-10): 5, Antoniadi (I-V): III
Transparency (1-6): 4
Notes:
02:15 U.T. Left image, CM 183.7, IL/W30): The South Polar Cap (SPC) appeared over the southern limb as a thin, brilliant (10/10) oval (not as readily visible from this longitude). Mare Australe and Mare Chronium appeared dark to dull (3-5/10) and mottled. Phaethontis appeared bright (7/10). Electris and Eridania wee also bright (7/10) but appeared to be mildly yellow-mustard tinged (dust?). Mare Sirenum appeared dark (3/10) and mottled. Mare Cimmerium appeared dark to dusky (3-4/10) and mottled as well. "Valhalla" appeared as a diffuse, dull (5/10) band north of Mare Cimmerium. Zephyria and Aeolis appeared bright to very bright (7-8/10) north of Mare Cimmerium as well (water vapor cloud vs. dust). Memnonia, Zephyria, Aeolis, Aethiopis, and Aetheria appeared bright (7/10). Elysium appeared shaded to bright (6-7/10) preceding the CM. Phlegra appeared dusky to dull (4-5/10). The Hyblaeus Extension appeared dark to dull (3-5/10) and mottled following Elysium. Utopia appeared dusky to dull (4-5/10) following the CM. An extremely bright (9/10) evening limb haze (ELH) and morning limb haze (MLH) were noted. An extremely bright (9/10) North Polar Limb (or Hood?) was noted as well.
02:50U.T. (Right image, CM 192.2, W38A): Mare Sirenum and Mare Cimmerium were dull (5/10) preceding and following the CM, respectively. Bright to very bright (7-8/10) clouds were noted over Phaethontis, Electris, Eridania, Zephyria, and Aeolis. Extremely bright (9/10) evening limb haze (ELH), morning limb haze (MLH), North polar limb, and South polar limb were noted.
The best of luck in your own imaging and observations of the red planet.
Regards,
Carlos E. Hernandez
Date (U.T.): November 7, 2005
Time (U.T.): 02:15 (left image) and 02:50 (right image)
CM: 183.7 (left image) and 192.2 (right image)
Ls: 319.8 (Mid-Northern Winter/Southern Summer)
De: -15.3, Ds: -15.7, p 1.00, 19.94"
Instrument: 9" F/13.5 Maksutov-Cassegrain
Magnification: 248x and 388x
Filters (Wratten): 30 and 38A
Seeing (1-10): 5, Antoniadi (I-V): III
Transparency (1-6): 4
Notes:
02:15 U.T. Left image, CM 183.7, IL/W30): The South Polar Cap (SPC) appeared over the southern limb as a thin, brilliant (10/10) oval (not as readily visible from this longitude). Mare Australe and Mare Chronium appeared dark to dull (3-5/10) and mottled. Phaethontis appeared bright (7/10). Electris and Eridania wee also bright (7/10) but appeared to be mildly yellow-mustard tinged (dust?). Mare Sirenum appeared dark (3/10) and mottled. Mare Cimmerium appeared dark to dusky (3-4/10) and mottled as well. "Valhalla" appeared as a diffuse, dull (5/10) band north of Mare Cimmerium. Zephyria and Aeolis appeared bright to very bright (7-8/10) north of Mare Cimmerium as well (water vapor cloud vs. dust). Memnonia, Zephyria, Aeolis, Aethiopis, and Aetheria appeared bright (7/10). Elysium appeared shaded to bright (6-7/10) preceding the CM. Phlegra appeared dusky to dull (4-5/10). The Hyblaeus Extension appeared dark to dull (3-5/10) and mottled following Elysium. Utopia appeared dusky to dull (4-5/10) following the CM. An extremely bright (9/10) evening limb haze (ELH) and morning limb haze (MLH) were noted. An extremely bright (9/10) North Polar Limb (or Hood?) was noted as well.
02:50U.T. (Right image, CM 192.2, W38A): Mare Sirenum and Mare Cimmerium were dull (5/10) preceding and following the CM, respectively. Bright to very bright (7-8/10) clouds were noted over Phaethontis, Electris, Eridania, Zephyria, and Aeolis. Extremely bright (9/10) evening limb haze (ELH), morning limb haze (MLH), North polar limb, and South polar limb were noted.
The best of luck in your own imaging and observations of the red planet.
Regards,
Carlos E. Hernandez
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