En una publicación anterior, (Carrillo, 2021) se definieron algunos conceptos necesarios para el uso del concepto día solar local, en este artículo avanzaremos en la obtención numérica de la hora del día en que el concepto día solar local aporta de la radiación tomando en cuenta, los conceptos antes construidos como son índice de hora día, theta hora iésima, theta máxima, theta mínima inicial y theta mínima local y los conectaremos con una función que ajuste la radiación para un día en el que la radiación está dada con un cenit de hasta 90°. Será requisito indispensable conocer el ángulo de radiación del sol en cada instante intermedio, en el que el observador desea conocer la hora de dicho día, así que se propone un transductor que censa ese ángulo. Además, se compara el modelo de 4º orden y de 6º orden efectuando la diferencia cuadrática. Eh integrando dicha diferencia para conocer la diferencia total durante el día.

WESTERN astrology traditionally sees the zodiacal wheel of a horoscope as a flat two-dimensional circle with the Earth located invisibly at the centre. Arranged around the circumference of the circle are the various natal planets. Their zodiacal positions are identified using the standard 360 degree division of the circle's circumference. This system is, of course, extremely useful and has been well-tested by astrologers throughout the Ages. It provides a means to profile the psychological characteristics of individuals, and it also enables us to predict significant events in a person's life. A radian-based approach to astrology builds upon these well-established foundations and adds another 'dimension' to chart delineation.

This paper describes the historical aspects of astronomy born from the hijri calendar and its application in determining the date of birth and death of the Prophet Muhammad. This research uses the history-astronomy method, which is history used to discuss important events that were born and died the Prophet Muhammad SAW as a great Islamic figure. While considering astronomy is used to explain the calculation of the start of the hijri calendar and analyze the date of birth and death of the Prophet through the calculation of the hisab Ephemeris and clarification of three software (Accurate Time 5.3.9, Stary Night, and Stellarium). This research concludes the brith of the Holy Prophet SAW on Legi Monday, 14th Rabi'ul Awwal 53 BH (5th May 570 AD ) and the death that the Prophet Muhammad SAW occurred on Legi Monday, 14 Rabi'ul Awwal 11 H (8 June 632 AD).

This paper is an examination of a disc which was placed in the inner cover of a manuscript written at the end of the sixteenth century and included in the collection of the Dibner Library for the History of Science and Technology in the Smithsonian Institution, in Washington DC.