Mars – September 13, 2005 – 12:45 AM

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East and West noted in the sketch are Martian E/W, not celestial E/W.

Observation Notes:
This was my best view of Mars yet. I made out obvious detail in the northern hemisphere, which turned out to be Mare Acidalium. The dark peninsula of Aurorae Sinus was the most prominent feature. It swept to the southwest, condensing into Mare Erythraeum. Solis Lacus was separated from Erythraeum by a light region. A dark feature drooped north from the SPC. I think this dark feature may be part of Mare Australe. Aurorae Sinus and Mare Acidalium swept to meet each other at points like a stalagmite and a stalagtite. For the record, gusting wind really ticks me off >:(

Subject Mars – Central Meridian: 40°
Classification Planet
Position* Aries [RA: 03:16:58 / Dec: +15:28:38]
Size* 15.6″ (Equatorial diameter)
Brightness* -1.27
Date/Time September 13, 2005 – 12:45 AM
(September 13, 2005 – 7:45 UT)
Observing Loc. Flagstaff, AZ – Home
Instrument Orion SVP 6LT Reflector (150 mm dia./1200 mm F/L)
Eyepieces/Mag. 10 mm Sirius Plössl+ 2X Barlow (240X)
Conditions Clear, breezy, 55° F
Seeing Ant. II-III
Transparency Mag 5.2 NELM
*Sources Orion’s The Sky Astronomy Software