When to Observe Rabee Thani Waning (OLD) Crescent ?
The geocentric conjunction (Geocentric New Moon) will occur Inshalla on (Saturday 25 April 2009) at 03:23 UT.
Sighting the OLD crescent on (Saturday 25 April 2009) and on (Friday 24 April 2009) is shown in the below graphs using the program Accurate Times by Mohammad Odeh according to Odeh criterion. Where:-
- It is impossible to see the OLD crescent from the areas located under the red color. Because either the Moon on this day rises after the Sunrise and/or the topocentric conjunction occurs before the Sunrise.
- The crescent is expected to be seen by optical aid only from the areas located under the blue color.
- The crescent is expected to be seen by optical aid from the areas located under the magenta color.. In these areas the crescent could be seen by naked eye if the atmospheric conditions are superb and the observer is experienced.
- The crescent is expected to be easily visible by naked eye from the areas located under the green color.
- The crescent can not be seen from uncolored areas, even though the Moon rises in these locations before the Sunrise and the topocentric conjunction occurs after the Sunrise, but the Moon is not sufficiently illuminated in order to be seen as crescent even by optical aid.
- Kindly notice that the below graph shows the possibility of seeing the crescent from areas between 60 degrees north of Equator down to 60 degrees south of Equator.
Saturday 25 April 2009
Friday 24 April 2009
Rabee Thani Waning (OLD) Crescent Observation Results
Friday 24 April 2009:
- Indonesia: Seen: ICOP member, Mr. AR Sugeng Riyadi said: "The Old Crescent of Rabiul Tsani 1430 AH, was SEEN from my location Bendo-Ketitang-Juwiring-Klaten - Central Java - Indonesia : Lat = -7°40'12.77", Long= 110°44'13.15", Zone =GMT+7, Elev = 100 m."
- Malaysia:
- Seen: ICOP member Mr. Baharrudin Zainal said: "On 24 April 2009 (Friday, the 29 hours old moon crescent was seen from our place (UDM Observatory, Terengganu, MALAYSIA). The crescent firstly seen by telescope and binocular, before using naked eye. Herewith,I enclosed the photo of the crescent which taken by Mr Ahmad Taufan, using Sony compact camera at Meade LX 10" eyepiece view."
- Seen: ICOP member, Mr. Kassim Bahali said: "The crescent was seen from my open observatory after I have performed subuh prayer."
- Tanzania: Not Seen/Partly Cloudy: ICOP member Mr. Fuad Bafana said: "Not Seen! Partly Cloudy! From Ilala area of Dar es Salaam!"
- Germany: Not Seen/Cloudy: ICOP member Mr. Martin Elsaesser said: "Thick fog at a temperature of only 1.5° made any sighting impossible."
- USA: Seen: ICOP member, Dr. Hussain Dashti said: "Today, April the 24th 2009, I was able to sight the old crescent from Gainesville, Florida with my 10X50 binocular only. I was able to see it for 14 minutes. It was first sighted at 6:23 am and last seen at 6:37 am. The old moon's topocentric calculations were as follows:
- Moorise: 06:11 LT
- Sunrise: 06:53 LT
- T. Moon Age: -17H 21M
- Moon Lag Time: +00H 42M
- T. Moon Altitude: +07°:44':18"
- T. Relative Altitude: +08°:34':21"
- T. Relative Azimuth: +03°:47':26"
- T. Elongation: +09°:22':08"
- T. Crescent Width: +00°:00':13"
- T. Illumination: 00.67 % "
By Moh'd Odeh. Copyright © 1998-2009 Islamic Crescents' Observation Project (ICOP), All Rights Reserved. This material may not be reproduced in any form without permission. For more information Kindly send E-mail