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The geocentric new Moon will occur on Sunday 13 June 1999, at 19:03 UT. The program Moon Calculator by Dr. Monzur Ahmed -according to Ilyas' criterion- showed that the crescent will be visible by naked eyes on 14 June some where starting from Indian Ocean. And so, countries west of this area (within the parabola) will be able to see the crescent on this day. However, using telescopes, the crescent will be seen in more eastern areas. On the other hand, countries outside the parabola will see the crescent by naked eyes on the next day (15 June). Consequently, arrange to observe the crescent after the sunset of 14 or 15 June. Kindly click on the below icon to see the visibility parabola as plotted by the program Moon Calculator
When to Observe ?
Results of seeing the crescent, and the first day of Rabeea' Awwal in different countries will be added here as we receive the reports from ICOP's members. If you wish to be a member in ICOP, or to know more about it, kindly click here.
So far, the earliest sighting of the crescent was on Monday 15 June from South Africa. The crescent was also seen from Nigeria, Morocco & Canada. On the other hand the crescent was NOT seen (by ICOP members) in Iran, Kuwait, and UK (On 15 June).
Monday 14 June
Tuesday 15 June
"14th June 1999 - no sighting attempt made.
15th June 1999 - we went to our usual spot on top a small hill within the
city. We were expecting to see the crescent. Local sunset was at 21:36 and
"best time" for crescent visibility was about 22:10. Unfortunately there was
a thick band of black cloud on the western horizon and no sighting was made.
We observed until 22:20."
Monday 14 June:-
Tuesday 15 June:-
Mr. Yasser Abdelhadi of the National Research Institute of Astronomy and Geophysics (Helwan Observatory), sent JAS the below E-mail.
Dear Mr. Mohamed Odeh,
Al- Salamu Alykom wa Rahmatullah wa Barakatuh....
Regarding for your request for asking about the Rabeea' Awwal Crescent, the
condition is: The crescent of Rabeea' Awwal will be born after the conjunction that takes place in 19:03 UT on Sunday 29 Safar 1420 H (13 June 1999). Thus it can not be seen before the sunset in Cairo because the setting will be before its birth. Accordingly, Monday 14 June 1999 will be the complementary day of Safar month, and Tuesday 15 June will be the beginning of Rabeea' Awwal one. Thank you for joining me and have my deep congratulations in the occasion of "Al- Mawlid Al- Nabawy" (The Prophet Mohamed Birth).
Wa Al- Salamu Alykom wa Rahmatullah wa Barakatuh....
Yours
To know about the accuracy of the astronomical calculations, then please click here
Observing the Crescent
The First Day in Different Countries
E-mail from Mr. Yasser Abdelhadi (Helwan Observatory)
Yasser Abdel-Hadi
(National Research Institute of Astronomy and Geophysics (NRIAG))
Helwan, Cairo, EgyptThe Accuracy of The Astronomical Calculations