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MarsWatch 1996-1997

Images of Mars from Astronomers Around the World


Linking Amateur and Professional Mars Observing Communities

for Observational Support of the Mars Pathfinder Mission


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5 April 1997

tl0504.gif

05.04 1997 Timo Lahde, Helsinki, Finland
19.45-20.15 UT

S=II-III, 205/1000 mm Newtonian Reflector + Apodising screen
Magnificaton = 200x (5,0 mm Eudiascopic)
263x (3,8 mm Eudiascopic)

Filters: Wratten #21, #38a

Diameter: 13,6"
Altitude: 36 degrees
CM: 100-104 degrees
Position Angle: 21,7 degrees
Phase: 0,981

There were not many details to be seen on Mars, as the areas of Tharsis and Amazonis were turned toward us. Mars Acidalium and Lunae Lacus were about to disappear behind the limb. A bright patch was seen over Tempe and Arcadia, and the darker Mare Boreum was seen bordering the North Polar Cap. Some alternating darker and lighter streaks were seen in Arcadia and Tractus Albus, with Tharsis and Amazonis being almost white. Mare Sirenum and Aonius Sinus were quite faint. Larger clouds were seen over Xanthe, and Scandia and Zephyria on the morning limb.

Timo Lähde
Helsinki, Finland


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