λ=229ﾟLs, (ω=032°W, φ=20°S), δ=21.3", ι=27°
Seeing 8 out of 10. Moderate dew, cool, no wind. Very calm. Great seeing.
Hugh amounts of detail with the W25 (red) filter. Great view of Mare Erythraeum, Chryse and Niliacus Lacus. Plenty of detail in ME. Pyrrhae Regio was bright, easy to see, not round with dark ares around it. Oxia Palus showed nicely, with pointed tip. Very sharp edge on following side. South Polar Cap clearly shows the Depiessio Magua gap. Bright area on SPC that projected down into the (now) light colored band appears to be Mons Argenteus. Certainly the best over all view of Mars so far this opposition. W47 filter (blue) showed an almost even disk with no bright areas, including in the North.
43cm f /7.8 reflector,480x
Bowie, MD USA.