Abd al-Rahman al-Sufi (English Wikipedia)

Schaefer 2013. Schaefer, Bradley E. (2013). "The Thousand Star Magnitudes in the Catalogues of Ptolemy, Al Sufi, and Tycho are All Corrected for Atmospheric Extinction". Journal for the History of Astronomy. 44 (1): 47–A91. arXiv:1303.1833. Bibcode:2013JHA....44...47S. doi:10.1177/002182861304400103. ISSN 0021-8286. S2CID 119202231.

asiac.ir (Global: low place; English: low place)

"A night full of memories; the first Sufi competition". Nojum Magazine. Archived from the original on 20 October 2009. Retrieved 7 January 2009.

books.google.com (Global: 3^rd place; English: 3^rd place)

Bean, Adam L. (2009). "Astrolabes". In Birx, H. James (ed.). Encyclopedia of Time: Science, Philosophy, Theology, & Culture. SAGE. p. 59. ISBN 978-1-4129-4164-8.
Cavin 2011. Cavin, Jerry D. (2011). The Amateur Astronomer's Guide to the Deep-Sky Catalogs. Springer Nature. ISBN 978-1-4614-0656-3.
Orchiston, Green & Strom 2014. Orchiston, Wayne; Green, David A.; Strom, Richard, eds. (2014). New Insights From Recent Studies in Historical Astronomy: Following in the Footsteps of F. Richard Stephenson: A Meeting to Honor F. Richard Stephenson on His 70th Birthday. Springer Nature. ISBN 978-3-319-07614-0.

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"Andromeda Galaxy". Britannia. Retrieved 13 January 2023.

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Schaefer 2013. Schaefer, Bradley E. (2013). "The Thousand Star Magnitudes in the Catalogues of Ptolemy, Al Sufi, and Tycho are All Corrected for Atmospheric Extinction". Journal for the History of Astronomy. 44 (1): 47–A91. arXiv:1303.1833. Bibcode:2013JHA....44...47S. doi:10.1177/002182861304400103. ISSN 0021-8286. S2CID 119202231.
Atbaş, Zeynep (1 August 2019). Artistic Aspects of Sultan Bayezid II's Book Treasury Collection: Extant Volumes Preserved at the Topkapı Palace Museum Library (Treasures of Knowledge: An Inventory of the Ottoman Palace Library (1502/3-1503/4) (2 vols)). Brill. pp. 161–211. doi:10.1163/9789004402508_005.
Atbaş, Zeynep (1 August 2019). Artistic Aspects of Sultan Bayezid II's Book Treasury Collection: Extant Volumes Preserved at the Topkapı Palace Museum Library (Treasures of Knowledge: An Inventory of the Ottoman Palace Library (1502/3-1503/4) (2 vols)). Brill. p. 195. doi:10.1163/9789004402508_005.
Knobel 1885. Knobel, E. B. (1885). "On Al Sufi's star magnitudes". Monthly Notices of the Royal Astronomical Society. 45 (8). Royal Astronomical Society: 417–425. Bibcode:1885MNRAS..45..417K. doi:10.1093/mnras/45.8.417.
Upton 1933. Upton, Joseph M. (1933). "A Manuscript of "The Book of the Fixed Stars" by ʿAbd Ar-Raḥmān Aṣ-Ṣūfī". Metropolitan Museum Studies. 4 (2): 179–197. doi:10.2307/1522800. JSTOR 1522800.

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"Abd al-Rahman Al-Sufi's (Azophi) 1113th Birthday". 7 December 2016.

harvard.edu (Global: 18^th place; English: 17^th place)

ui.adsabs.harvard.edu

Schaefer 2013. Schaefer, Bradley E. (2013). "The Thousand Star Magnitudes in the Catalogues of Ptolemy, Al Sufi, and Tycho are All Corrected for Atmospheric Extinction". Journal for the History of Astronomy. 44 (1): 47–A91. arXiv:1303.1833. Bibcode:2013JHA....44...47S. doi:10.1177/002182861304400103. ISSN 0021-8286. S2CID 119202231.
Knobel 1885. Knobel, E. B. (1885). "On Al Sufi's star magnitudes". Monthly Notices of the Royal Astronomical Society. 45 (8). Royal Astronomical Society: 417–425. Bibcode:1885MNRAS..45..417K. doi:10.1093/mnras/45.8.417.

ianridpath.com (Global: 5,934^th place; English: 4,798^th place)

Ridpath. Ridpath, Ian. "Star Tales: al-Şūfī's nebulae".

jamejamonline.ir (Global: 1,603^rd place; English: low place)

رقابت صوفي، درآمدي بر سال جهاني نجوم [Sufi competition, an income for the International Year of Astronomy]

jcu.edu.au (Global: low place; English: 7,856^th place)

researchonline.jcu.edu.au

Hafez, Ihsan (October 2010). ʿAbd al-Raḥmān al-Ṣūfī and his book of the fixed stars: a journey of re-discovery. James Cook University (phd). pp. 2–4.

jstor.org (Global: 26^th place; English: 20^th place)

Upton 1933. Upton, Joseph M. (1933). "A Manuscript of "The Book of the Fixed Stars" by ʿAbd Ar-Raḥmān Aṣ-Ṣūfī". Metropolitan Museum Studies. 4 (2): 179–197. doi:10.2307/1522800. JSTOR 1522800.

muslimheritage.com (Global: low place; English: low place)

Winterburn, Emily (2005). "Using an Astrolabe". Muslim Heritage. Foundation for Science, Technology and Civilisation, UK (FSTCUK). Retrieved 22 January 2008.

researchgate.net (Global: 120^th place; English: 125^th place)

Hafez, Stephenson & Orchiston 2011. Hafez, Ihsan; Stephenson, Richard; Orchiston, Wayne (2011). "Abd al-Rahman al-Sufi and his Book of the Fixed Stars". In Orchiston, Wayne; Nakamura, Tsuko; Strom, Richard G. (eds.). Highlighting the History of Astronomy in the Asia-Pacific Region. Springer Nature. pp. 121–138. ISBN 978-14419-8-161-5.

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Schaefer 2013. Schaefer, Bradley E. (2013). "The Thousand Star Magnitudes in the Catalogues of Ptolemy, Al Sufi, and Tycho are All Corrected for Atmospheric Extinction". Journal for the History of Astronomy. 44 (1): 47–A91. arXiv:1303.1833. Bibcode:2013JHA....44...47S. doi:10.1177/002182861304400103. ISSN 0021-8286. S2CID 119202231.

uu.nl (Global: 2,467^th place; English: 2,049^th place)

webspace.science.uu.nl

van Gent, Robert Harry. "Biography of al-Sūfī". University of Utrecht. Retrieved 11 January 2014.

web.archive.org (Global: 1^st place; English: 1^st place)

"A night full of memories; the first Sufi competition". Nojum Magazine. Archived from the original on 20 October 2009. Retrieved 7 January 2009.

worldcat.org (Global: 5^th place; English: 5^th place)

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Schaefer 2013. Schaefer, Bradley E. (2013). "The Thousand Star Magnitudes in the Catalogues of Ptolemy, Al Sufi, and Tycho are All Corrected for Atmospheric Extinction". Journal for the History of Astronomy. 44 (1): 47–A91. arXiv:1303.1833. Bibcode:2013JHA....44...47S. doi:10.1177/002182861304400103. ISSN 0021-8286. S2CID 119202231.

Abd al-Rahman al-Sufi (English Wikipedia)

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