Crescent Visibility Report for Sha’ban 1431 (Monday 12th July 2010) Based on settings*
(Sha’ban) is one of the Arabic months – See the Islamic Calendar
– Moon Times from: 12/07/2010 CE To: 12/07/2010 CE
– OMAN Muscat, Long: 58:35:36.0, Lat: 23:36:48.0, Ele:21.0, Zone:4.00
– Refraction Settings: Temperature: 30 °C Pressure: 1011 mb
– Delta T: 65.2 Second(s)
Timing: (12th/07/2010) Sun Moon
Rise: 5:26 05:48
Transit: 12:11 12:41
Set: 18:55 19:29
Age of Moon: Waxing Crescent : ~ 0.89 days old.
Set Time difference : 34 minutes
Based on the astronomical calculations, the Crescent (Hilal) will be visible across the country. In North of Oman and the Capital Muscat, the Hilal will only be visible thru optical aid such as Binoculars and Telescope. If we go towards South of Oman, the chances of visibility increases as it could be possible to sight Hilal by Naked eye. As shown in the graph photo above. (Graph produced by Accurate Times software)
However the chances for Crescent visibility either by using optical aid or naked eye depend on many other factors:-
The first factor which I have described above, in which astronomical calculations indicates the possibility to view Hilal in the sky.
The second factor is the age of the Hilal (Crescent waxing)
The Waxing Crescent here is 0.90 days old, which is still young.
The third factor is the sky conditions and location itself, which always plays a big role for the crescent visibility in the sky.
The fourth factor depends on the physical health and skills/talent of the person sight – Perfect vision and / or the conditions of the optical aid used, such as optical quality & performance.
All of factors mentioned above play around with each other. If one of the factor fails, then sighting becomes very very difficult if not impossible.
MY sighting result for today’s report
Equipment used: 10X50mm DPS R Olympus Binoculars, Field of view 6.5 degrees
I have failed to sight the Hilal because of the following factors:
First comes the third factor
and also the second factor played around well. It was hard to view from my location..Muscat the Capital City of Oman.
Location all surrounded by buildings, motor pollution and so on..
My previous similar post: Eid Al Fitr 2009 Moon waxing crescent sighting
Clear Skies ^_^
Hi Mundhir! Back from the past! (re Eid Al Fitr 2009 post) Any sighting of Hilal would be impossible here tonight/day on account of third and fourth factors alone…beautiful clear skies have been replaced by thick cloud cover and rain in the last 24 hrs…as they have a way of doing at the first hint of any interesting astronomical observations about to happen!! However you do have some very good data here for studying 🙂
Ya learn somtiheng new everyday. It’s true I guess!
Most appropriate too at this time to note that the Islamic Calender is a Lunar Calender…looking forward to more Mundhir posts 🙂 Till then Mundhir…Walk in peace with Allah, and may the blessings of Allah go with you…always 🙂
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