Mars – August 27, 2005 – 3:45 AM

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

Observation Notes:

Since observing 3 hours earlier, Syrtis Major had rotated into view. The break between Mare Cimmerium and Mare Tyrrhenum was still evident. I was surprised how far north Syrtis Major extended. There was still a dark feature flowing northwest from the SPC. I thought I detected some darkening in the midst of Elysium–although I can’t say what feature it might be. The thin dark collar around the SPC wasn’t as evident this time.

Subject Mars
Classification Planet
Position* Aries [RA: 02:54:37 / Dec: +13:45:45]
Size* 13.6″ (Equatorial diameter)
Brightness* -0.92
Date/Time August 27, 2005 – 3:45 AM
(August 27, 2005 – 10:45 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, calm, 45° F
Seeing Ant. II-III
Transparency Mag 5.2 NELM
*Sources Orion’s The Sky Astronomy Software