USA: Not Seen: ICOP member Mr. Jim Stamm said:
I used the atmospheric conditions for the area that I was looking over (Mt. Lemmon).
Old Moon Crescent Observation Report
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2007 February 16
Location = Tucson, Arizona (USA)
Longitude = 110.9645 W
Latitude = 32.4204 N
Elevation = 842 meters
Time Zone = -7.0 hours
Surface conditions over Mt. Lemmon
Temperature = 01 degrees Celcius
Relative Humidity = 42 percent
Sea level Pressure = 1028 bars
Magnitude limit at 8 degrees altitutde with 55 power
in C-8 telescope, before onset of twilight = 11.0
Topocentric and local time values from Accurate Times:
Moonrise (at sea level) = 06:31
Sunrise (at sea level) = 07:01
Time from new moon at 07:25 = 24 hr. 56 min.
Moon lag time = 30 minutes
Relative Altitude = 5 degrees
Elongation from sun = 14.5 degrees
Crescent width = 31 arcseconds
Illumination = 1.6 percent
I was NOT able to see the crescent, even through a telescope.
99% sure of field of view
90% sure of focus
Observer(s): Jim Stamm & John Polacheck