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East and West noted in the sketch are Martian E/W, not celestial E/W.
Observation Notes:
During the first half of this observation, the sky was reasonably clear, but the scope was still cooling down. A bit later, when the seeing began to improve, a thin smear of horizon-to-horizon clouds moved in. Everything got very muddy. Bah! I was hunting for evidence of a dust storm moving south out of Chryse. I think I spotted a notch it might have taken out of Aurorae Sinus. The North Polar Hood was very evident and notched.
| Subject | Mars – Central Meridian: 60° |
| Classification | Planet |
| Position* | Taurus [RA: 03:08:03 / Dec: +16:24:43] |
| Size* | 20.12″ (Equatorial diameter) |
| Brightness* | -2.2 |
| Date/Time | October 21, 2005 – 12:30 AM to 1:30 AM (October 21, 2005 – 07:30 to 08:30 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) |
| Filters | #21A Orange, #80A Blue |
| Conditions | High thin cloud layer, cool |
| Seeing | Ant. III |
| Transparency | Unmeasured, but basically horrible |
| *Sources | Orion’s The Sky Astronomy Software |