With I.L., W25 and W21, Hellas and Ausonia were
greyish-blue in their tint. In I.L. the NPC was pure white and Elysium,
slightly oval in Sf-Np direction, was yellowish-white. A small slightly
brighter core was seen in W. Ausonia in W25; also a large area around the
NPC was hazily greyish-blue (frosts?). With W21 and I.L. the NPC showed
very difficult detail in the form of a narrow dusky streak across the cap
approximately along CM. NPC border very dark and detailed. Hyblaeus had
two extensions to W, its S part duller. Two dark bands connected Mare Cimmerium
and N Mare Tyrrhenum across Hesperia. Ausonia separated from N Eridania.
Tritonis Sinus pointed, N border of Mare Cimmerium was intricate.
Observer:
Johan Warell
Coordinator, Nordic
Mars Observers
Wennerbergsg. 11
S-754 21 Uppsala, Sweden
E-mail: johan.warell@astro.uu.se