Nordic Mars Observers - Mars 1997 Apr 12

ObserverTimo Lähde
Date1997 Apr 12
Time (UT)19:30
SiteHelsinki, Finland
Instrument205 mm f/5 Newton + apodizing screen, x200,266
FilterW21, W23, W38A
Seeing (Ant.)I-II
Ls94.2 deg
CML32.8 deg
Diameter13.1"
Phase0.97
Phase Angle19.8 deg
P21 deg
Q--- deg
De+24.0 deg
NotesThe most distinct feature on Mars was Mare Acidalium, which appeared very dark, the northern part being darker. Tempe was covered by a white cloud, as was also Xanthe and Lunae Lacus, to the south. Chryse appeared whiter than the surrounding areas of Cydonia and Eden. In Mare Acidalium, there were some lighter areas, most notably Achillis Pons. In the far North, the areas of Mare Boreum and Baltia were seen extending west (towards the morning limb) In the eastern part of Mare Acidalium, Deuteronilus was seen as a faint streak. A white cloud, quite small, was seen over Arabia. In the south, the areas of Sinus Sabaeus, Sinus Margaritifer and Mare Erythraeum were seen, bordered by the light areas of Deucalionis regio and Pyrrhae Regio. The NPC was indistinct, shrouded in what appeared to be a large hood of cloud and mist, partially covering Mare Boreum.


NMO 1996/7 Observations
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