When to Observe Thul Keadah Waning (OLD) Crescent ?
The geocentric conjunction (Geocentric New Moon) will occur Inshalla on (Sunday 09 December 2007) at
17:40 UT.
Sighting the OLD crescent on (Saturday 08 December 2007) and on (Sunday 09 December 2007) 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 08 December 2007
Sunday 09 December 2007
Thul Keadah Waning (OLD) Crescent Observation Results
Saturday 08 December 2007:
- Indonesia: Seen: ICOP member, Mr. AR Sugeng Riyadi said: "The Old Crescent (Waning) of Thul Keadah 1428 H was SEEN from my location: Bendo Ketitang Juwiring Klaten Indonesia (Lat: 7°39' S, Long: 110°49' E, elev: 110 m, Zone: GMT +7) on Saturday, 8 Dec 2007 @ 04:53 AM. The Altitude of Old Crescent was 13°41' and azimuth 112°59'. I see by naked eye the waning of thul keadah 1428 H just not more then 2 minutes and he eastern was cloudy until the sunrise @ 05:17 AM. I also observe the Old Crescent on Sunday, 9 December 2007 with my student of CASA (Club Astronomi Santri Assalaam) in Surakarta (7°33' S, 110°46' E, 111 m, GMT+7) from 04:30 AM up to 05:17 AM) but all of we can not see the crescent because the cloudy."