Islamic Crescents' Observation Project

Visibility of Jumada Ath-Thani Crescent
(1422 AH)

Last Updated 06 October 2001

In this page:-

When to Observe ?

The geocentric new Moon will occur on Sunday 19 August 2001, at 02:55 UT. On this day, the program Moon Calculator by Dr. Monzur Ahmed -according to Yallop criterion- showed that Inshalla the crescent should be seen by telescope from western Asia and parts of Africa, while it should be seen by naked eyes from western Africa and from America continents. ACCORDING TO THE ACTUAL SIGHTING OF THE CRESCENT, THE START OF JUMADA ATH-THANI SHOULD BE ON Monday 20 August 2001 or Tuesday 21 August 2001 for the eastern parts of the world . Kindly click on the below icon to see the visibility parabola as plotted by the program Moon Calculator

Results of seeing the crescent, and the first day of the month in different countries will be added here Inshalla 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.

Results of Observation

So far, the earliest sighting of the crescent was on Sunday 19 August by JAS from Jordan. The crescent was also seen on this day from USA.

Sunday 19 August

Monday 20 August

  • Indonesia: ICOP member, Mr. Suwandojo SIDDIQ said: "Western Sky is little bit hazy or cloudy. The crescent could be seen after sunset at 18:20, but disappear after 20 minute later, due to covered by clouds."

  • Brunei: ICOP member, Mr. Mahadi Mohamad Tahir said: "The condition in Brunei these few days were very hazy due to the forest fire in southern Borneo so no observation was made on 19/8. Jamadil Akhir starts on Monday 20/8."

  • Iran:

    1. ICOP member, Mr. Asadollah Khoddam Mohammadi mentioned that he could see the crescent by naked eyes.

    2. ICOP member, Mr. Amir Hasanzadeh mentioned that he was able to see the crescent.

  • Syria: ICOP member, Dr. Hasan Bilani said: "The sky was clear, I could see the crescent about 5 minutes before sunset."

  • Morocco: ICOP member, Prof. Hamid TOUMA mentioned that it was cloudy, and said: "I come back from holliday summer, and I am pleased to inform you that the first day of Jummada AlThani was TUESDAY 21 AUGUST in Morocco."

  • Kenya: ICOP member, Mr. Mahmood Essa said: "I regret to let you know that owing to cloudy weather conditions, I was unable to sight the new crescent here in Mombasa today, Monday. However, Tuesday 21/8/01 is our first day of the new month of Jumada Ath-Thani here in Kenya."

  • Nigeria:

    1. ICOP member, Mr. Usman Dukku said: "It was cloudy here at Bauchi. Even the sun was concealed by the clouds two hours before sunset, thus the crescent was not sighted."

    2. ICOP member, Dr. Sani Mustapha said: "The Western Horizon was patchly cloudly."

  • Germany: ICOP member, Mr. Gerhard Ahmad Kaufmann mentioned that he could see the crescent by naked eyes.

The OFFICIAL First Day in Different Countries

Sunday 19 August:-

  1. Nigeria

Monday 20 August:-

  1. Indonesia
  2. Maldives
  3. Brunei
  4. Jordan
  5. Syria
  6. Saudi
  7. Bosnia and Herzegovi

Tuesday 21 August:-

  1. Kenya
  2. Iran
  3. Morocco

The Accuracy of The Astronomical Calculations

To know about the accuracy of the astronomical calculations, then please click here