Re: When Is Eid In...?
Ramadan Waning (OLD) Crescent Observation Results
Sunday 28 September 2008:
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[li]Iran:[ol][/li][li]Seen: ICOP member Mr.Alireza Mehrani said:Location: Esfahan, Iran [/li]Latitude: 32° 35' 41.95" N
Longitude: 51° 39' 14.34" E
Elevation: 1789 meters from sea level
Time zone: +3.5
Date: Sunday September 28, 2008 (Mehr 7, 1387)
Temperature: +11 C°
Barometer: 1016 mb
Visibility: 6 km
Wind: 8 kph
Humidity: 44%
Topocentric and local time values from "Moon Calculator" (Refrac off):
File name: amehrani sep 28, 2008-old-1.jpg
Time: 05:20 LT (01:50 UT)
Moon Alt: 5° 24' 37"
Sun Alt: - (8° 18' 24")
Elongation: 14° 39' 29"
Rel Azi: 5° 10' 56"
Moon Width: 0.51'
Moon Phase: 1.84%
Moon Age: 30h 22m before conjunction
Camera: Digital camera (Sony DSC H9)
Focal Length: 58mm
F-Number: F/4.5
ISO Speed: ISO-80
Exposure Time: 1.6 sec
Observer & photographer: Alireza Mehrani
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[li]USA:[LIST=1][/li][li]Seen: ICOP member Mr.Jim Stamm said:[/li]Old Moon Crescent Observation Report
Observed: 2008 Sep 28
Location = Tucson, Arizona (USA)
Longitude = 110.9645 W
Latitude = 32.4204 N
Elevation = 842 meters
Time Zone = -7.0 hours
Surface conditions at
Tucson International Airport (805 m):
Temperature = 22 degrees Celsius
Relative Humidity = 47 percent
Sea Level Pressure = 1013 mb
Magnitude limit at 13 degrees altitude 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) = 05:32
Sunrise (at sea level) = 06:11
Time from new moon at 06:45 = 17 hr. 55 min.
Moon lag time = 39 min.
Relative Altitude = 4.83 degrees
Elongation from sun = 19.00 degrees
Crescent width = 12 arc seconds
Illumination = 0.62 percent
I was NOT able to see the crescent, even through a telescope. There was a tree branch in the FOV at 7 degrees altitude, so I had to raise my telescope to 13 degrees altitude. I chose to do this rather than move the telescope, so as to practice acquiring the crescent in a brighter sky.
Observer(s): Jim Stamm
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[li]Germany:[ol][/li][li]Seen: ICOP Member Mr.Martin Elsaesser said:"Due to autumn fog (visibility<50m) i could not observe the "old" lunar crescent during morning twilight from munich. The fog/clouds departed around noon, so i used the well established realtime-video technique to capture/observe the crescent during the day.The crescent could be easily seen on the monitor for several hours in the afternoon. Later, the crescent vanished in the clouds again, about 1 hour before moonset. Attempts to observe the crescent visually through the same telescope were not successfull, due to low contrast with the remaining haze"[/li][/ol]
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