Saturday, March 21, 2020

Call for a virtual discussion about the global fajr


Global Fajr: It occurs when the sun is at its depression angle of -13 degrees.


It is the first official video published as a collaboration between the Islamic Science Research Network (HAMKA Muhammadiyah University, Indonesia), and OpenFajr Project Team, United Kingdom. Although, we have been collaborating since June 2019.

Currently, ISRN has 245 days of astronomical data collected from 2015 to 2020 for the estimation of the occurrence of the Fajr. It gives the population-mean of -13.24 degrees with a standard deviation of 1.81 degrees. Meanwhile, the OpenFajr Project, UK has 422 days of astronomical data to give the population-mean of -12.98 degrees with a standard deviation of 0.99 degrees.

This video explains that statistically, these two populations are actually equal. As such, we can combine them into a single population which gives the final population-mean of -13.05 degrees and the standard deviation of 1.32 degrees. The above scientific fact leads to further research inquiries to state that the presence of the Fajr is actually the same in the world; that is when the sun is at its depression angle of about -13 degrees. Limited astronomical data collected in Tacoma (Washington State), Cairo, Istanbul, and Medina (Saudi Arabia) temporarily support this Null Hypothesis.

We, therefore, call for international collaboration to develop a crowdsourcing data collection scheme. We will be more than happy to help if you need technical assistance as to how to collect and process the data. If you are interested, please follow this link:


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