منبع: سایت کمان آسمانی
New Moon Crescent Observation Report
Location = Tucson, Arizona (USA) Gates Pass
Longitude = 111.10 W
Latitude = 32.22 N
Elevation = 963 meters
Time Zone = -7.0 hours
Topocentric and local time values from "Accurate Times":
Sunset (at sea level) = 17:38
Moonset (at sea level) = 18:00
Time from new moon at 17:43 = 22 hr. 10 min.
Moon lag time = 21 minutes
Relative Altitude = 4.00 degrees
Elongation from sun = 11.99 degrees
Crescent width = 21 arcseconds
Illumination = 1.1 percent
Crescent first observed through 8" SC telescope:
Time = 17:43
Altitude = 1.2 degrees
Lots of cirrus clouds interfered with the observation, but they were thinning and there were breaks. The Moon wasn't visible through the breaks until 17:43 at the predicted time and position. The image was dull and smooth, and I didn't note any other characteristics, because I wanted the others to see it. However, at least four other people tried, but were not successful. Focus was very critical for this observation, and I believe that was the reason for lack of success.
Observer(s): Jim Stamm
نماي بالا ( راست) و سه بعدي ( چپ ) رصدگاه آقاي استم
مختصات هلال در رصدگاه آقاي استم ( ارتفاع رصدگاه 963 متر منظور شده و اثر جو لحاظ نشده است )
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