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امروز : چهارشنبه مورخ 28 مهر 1400 هجری شمسی ، مطابق با 13 ربیع الاول 1443 هجری قمری ، مطابق با 20 اکتبر 2021 میلادی

مكاتبه ي آقاي بو‍ژمهراني با آقاي مهندس محمد شوکت عوده در خصوص رصد هلال رمضان 1432 در ايران

Dear brother Mohammad

Honorable members of ICOP

السلام علیکم و رحمة الله و برکاته

First of all I would like to congratulate you and all Allah servants the Holy month of Ramadan. On Sunday 31 July 2011, more than 168 Iranian observer groups from the whole country did the observation by telescopes or binoculars. For this great observation, everything was arranged formerly. The mentioned groups were under the consideration of 31 state centers and they sent their observation reports to the Supreme Leader Observation Office.

We considered doing the crescent observation at three different times:

-       Observation by telescope on daylight

-       Observation by telescope and binoculars about sunset

-       Observation by telescope and binoculars after sunset

Some of our observers had special records on crescent observation at daylight. We asked them to settle on highlands for decreasing the meteorological factors (steam and dust). The received reports indicated that the observation about and after sunset had no result. We had anticipated it and knew that there would not be any chance to observe the crescent at this time, because of the inappropriate meteorological factors in most parts of the country and insufficient moon altitude at sunset time.

We hoped to observe the crescent at daylight. In this regard, we received 10 reports. The exports who are the members of crescent Observation Office and I, rejected 5, because of the short time of observation (about some seconds) or distrust to observers or perfect recognition about observers' experience, but accepted 5 others. All of them were represented by those who had precedence on crescent observation at daylight.

 

The detailed information is as bellow:

 

Location

Observers

Tools

Time

Elongation

Moon Alt

Moon width

32:45 N 52:23 E 3350 m

Abbas Ahmadiyan

10" Tel

12:43 LT

8.896 d

66.3 d

0.20 m

32:52 N 52:23 E 3163 m

Hosein Mir Ezabadi Leyla Mir Shamshirgaran Ataa Moghtaderi Mahdi Eshaghi

12" Tel

12:52 LT

8.950 d

67.1 d

0.20 m

33:58 N 51:09 E 1774 m

Asad-o-llah Safaei Shapouri Karimi Malekzadeh

16" Tel

13:30 LT

9.199 d

67.8 d

0.21 m

31:45 N 54:13 E 1545 m

S. Ghasem Rostami Ali Ommani

8" Tel

17:05 LT

10.545 d

36.7 d

0.28 m

33:58 N 51:09 E 1774 m

Mahdi Rahimi S. Kamal Hasan Dokht

16" Tel

17:20 LT

10.707 d

35.8 d

0.28 m

(Mooncal 6.0 by Dr. Monzur Ahmed, Refr Off, Topo, Time zone 04:30)

Fortunately Eng. S. Ghasem Rostami has succeeded to take I photograph from the crescent which is attached. There are many years that Iranian observers do the observation at daylight. In this regard the most important records are as follow:

Date

Location

Observers

Tools

Time

Elongation

Moon Alt

Moon width

April 28, 2006

29:13 N 53:34 E

Mohsen Sharifi

14" Tel

13:56 ( 3:30)

8.497 d

66.2 d

0.18 m

May 16, 2007

33:55 N 51:08 E

Abbass Ahmadiyan

10" Tel

09:12 ( 3:30)

8.750 d

57.9 d

0.20 m

February 18, 2007

33:55 N 51:08 E

Abbass Ahmadiyan

8" Tel

11:52 ( 3:30)

9.287 d

43.8 d

0.22 m

February 27, 2006

30:13 N 57:33 E

Mohsen Sharifi

14" Tel

12:02 ( 3:30)

10.554 d

43.3 d

0.29 m

 

Sincerely,

Alireza Mehrani

Esfahan, I. R. of IRAN

 

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