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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 |