7 October 2005 CHr Note
C E HERNANDEZ's
Observation of Mars on 7 October 2005

  λ=302°Ls,  ( ω=129, 146°W,   φ=11°S ),   δ=18.6",   ι=26°


Notes:
Left Image 04:20 U.T. (IL / W30): The South Polar Cap (SPC) was very small and brilliant (10/10). Mare Australe appeared dark to dusky (3-4/10) and mottled. Bosporos Gemmatus, Aonius Sinus, and Palinuri Fretum appeared dark to dusky (3-4/10) and irregular over certain segments. Thaumasia, Daedalia, and Phaethontis appeared bright (7/10). Solis Lacus appeared dark to dusky (3-4/10) and elongated north-south towards the preceding limb. Dusky (4/10) projections were noted to extend from it's north-preceding border (Geryon) and southern border (Ambrosia and Bathys). A dusky (4/10) and partially obscured (haze) Tithonius Lacus was visible north of Solis Lacus. Thaumasia (northern portion) and Ophir appeared very bright (8/10, most likely due to water vapor/haze). Phasis appeared as thin, dark (3/10) finger-like projection (northward) from Aonius Sinus. Mare Sirenum was dark to dusky (3-4/10) following the CM and appeared to contain mottling within it, especially during moments of very steady seeing. Araxes (4-5/10) was visibly extending from the preceding tip of Mare Sirenum. A very bright (8/10) circular albedo feature was noted in the region of Phoenicis Lacus at the eastern (preceding) tip of Araxes (Lux?). The eastern (preceding) section of "Valhalla" was noted north of Mare Sirenum over Memnonia (7/10). The eastern (preceding) tip of Mare Cimmerium was visible (4/10) on the following limb. The following (western) border of Mare Acidalium was visible (5/10) along the preceding limb partially obscured by a very bright to extremely bright (8-9/10) evening limb haze (ELH, 9/10). An orographic (mountain-associated) cloud was visible over the region of Olympus Mons (especially noted using the Wratten 30 (magenta) filter). A small, thin and dusky (4/10) albedo feature was noted north of this cloud. I do not believe that I was observing the actual shadow of Olympus Mons (especially so close to the CM), but rather the shadow (?) of the orographic cloud instead. Tharsis and Amazonis appeared shaded to bright (6-7/10) and mottled (especially Amazonis). A very bright to extremely bright (8-9/10) North Polar Hood (NPH) was visible (inconsistent in density as dusky (4/10) albedo features were visible through portions of it). An extremely bright (9/10) morning limb haze (MLH) was visible.

Right Image 05:30 U.T. (W38): The South Polar Cap (SPC) appeared very small and brilliant (10/10). Extremely bright (9/10) morning limb haze (MLH), evening limb haze (ELH), and North Polar Hood (NPH) were visible. The eastern (preceding) section of Tharsis was very bright (8/10). Mare Sirenum (5/10) appeared to be bordered by bright to very bright (7-8/10) clouds/haze. The Olympus Mons orographic cloud appeared very bright (8/10) on the CM.

Observer:   Carlos E HERNANDEZ,   Miami   FL


See Images on the Right-Hand Side   /   Back to the Index