USA: Seen: ICOP member Mr. Jim Stamm said:
Location = Tucson, Arizona (USA)
Longitude = 110.9353 W
Latitude = 32.4261 N
Elevation = 840 meters
Time Zone = -7.0 hours
Surface conditions at time of first sighting at
Tucson International Airport (805 m):
Temperature = 22 degrees Celcius
Relative Humidity = 20 percent
Atmospheric Pressure = 1015 mb
Topocentric and local time values from “Accurate Times”:
Sunset (at sea level) = 19:00 (18:51 from our vantage point)
Moonset (at sea level) = 19:43 (19:38 from our vantage point)
Time from new moon at 18:58 = 15 hr. 06 min.
Moon lag time = 43 minutes
Relative Altitude = 8.4 degrees
Elongation from sun = 8.6 degrees
Crescent width = 11 arcseconds
Illumination = 0.57 percent
Crescent first observed through 8” SC telescope:
Time = 18:58
Altitude = 6.7 degrees
Final observation with telescope:
Time = 19:38
Altitude = -1.0 degrees
This was the prettiest crescent that we’ve seen. At first only about 5 arc-degrees was visible. It looked too straight to be the crescent, but the image persisted and we finally had to accept it. After several minutes, the crescent seemed to spread out to 80 arc- degrees, instantaneously. Gradually it grew to about 90 arc-degrees, and the brighter sections became “connected.” We watched it for a total of 40 minutes, until we could see the horns speeding through the trees on the horizon, which was maybe about 6 kilometers away.
Jim Stamm
John Polacheck