Astronomy:Morning width
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In astronomy, the morning width or rise width is the horizontal angular distance between the rise azimuth of a celestial body and the East direction.[1][2] Muḥammad ibn Mūsā al-Khwārizmī, an 8th and 9th century Islamic scholar, wrote the text Ma‘rifatsa‘at al-mashriqfīkullbalad on determing the morning width.[3]
References
- ↑ (in English) Astronomy for beginners : all you need to know to get started in astronomy (Thirdition ed.). 2015. p. 151. ISBN 978-1785461477. https://archive.org/details/AstronomyForBeginnersThirdEdition.
- ↑ Esken, Thomas. "Gcal 4.1: Appendix N Glossary". GNU. https://www.gnu.org/software/gcal/manual/html_node/Glossary.html. Retrieved 19 January 2020.
- ↑ Umar, Khalid Bin (18 August 2019). "Al Khwarizmi: A Medieval Polymath". www.tawarikhkhwani.com. http://www.tawarikhkhwani.com/al-khwarizmi-a-medieval-polymath/. Retrieved 19 January 2020.
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