21 August 2005 CHr Note
C E HERNANDEZ's Observation of Mars
on 21 August 2005

  λ=273°Ls,  ( ω=232, 241°W,   φ=14°S ),   δ=13.0",   ι=45°


Notes:
Left Image (06:00 U.T., IL/W35): The South Polar Cap (SPC) appeared brilliant (10/10) and prominent. No detail was noted within the SPC. Mare Chronium (3-4/10) was visible north and surrounding the SPC. Simois (4-5/10) was visible extending between the southern border of Mare Cimmerium and Mare Chronium, bisecting Phaethontis (7/10) and Electris (7/10). Eridania (7/10) was visible as well. Mare Cimmerium (3-4/10) was visibly extending from the south-preceding limb and following the CM. A bright (7/10), circular albedo feature (Atalantes Depresio?) was noted over the southern border of Mare Cimmerium adjacent to Hesperia (7-8/10). The diffuse (5/10) albedo feature "Valhalla" was noted to be north and parallel to Mare Cimmerium. Mare Tyrrhenum (3-4/10) and Syrtis Minor (3/10) were prominent following the CM. The region appeared "speckled" during brief moments of steady seeing. Mare Hadriacum (3/10) was noted along the preceding border of Hellas (9/10). Syrtis Major (3-4/10) was noted as a "wedge" along the following limb. Iapygia Viridis (3/10) was visible towards the following limb south of Syrtis Major. Aeolis, Aethiopis, and Aetheria were bright (7/10) with little detail visible. Cerberus (5/10) was visible as a thin wedge south of the extremely bright (9/10) North Polar Hood (NPH). Libya (7-8/10) appeared to be partially obscured by haze. The Hyblaeus Extension (?, 3-/4/10) was visibly partially obscured by the NPH. A thin, extremely bright (9/10) morning limb haze (MLH) was visible. A more prominent (9/10) evening limb haze (ELH) was visible as well.

Right Image (06:40 U.T., W38): The South Polar Cap (SPC) was brilliant (10/10). Hellas was extremely bright (9/10) and appeared to have a thin, bright to very bright (7-8/10) projection extending from it's preceding border then across Eridania and Electris and connecting to the extremely bright MLH (possible mixture of ground fog and water-ice clouds?). A very bright to extremely bright (8-9/10) cloud was visibly projecting over Elysium. The North Polar Hood (NPH) was extremely bright (9/10) as well. Mare Chronium, Mare Cimmerium, Mare Tyrrhenum, Syrtis Minor, and Syrtis Major were diffusely visible using the blue (W38) filter.

Observer:   Carlos E HERNANDEZ,   Miami   FL


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