Qibla observation by shadows (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Qibla observation by shadows" in English language version.

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8books.google.com

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van Gent 2017 places it on 12/13 January and 28 November while Hadi Bashori 2015, p. 127 mentions 14 January and 29 November. According to both sources, observations made within one or two days at the same time are accurate. van Gent, Robert Harry (2017). "Determining the Sacred Direction of Islam". Webpages on the History of Astronomy. Hadi Bashori, Muhammad (2015). Pengantar Ilmu Falak (in Indonesian). Jakarta: Pustaka Al Kautsar. ISBN 978-979-592-701-3.
An example of the calculation and the geographical data required is presented in Hadi Bashori 2015, pp. 128–130 Hadi Bashori, Muhammad (2015). Pengantar Ilmu Falak (in Indonesian). Jakarta: Pustaka Al Kautsar. ISBN 978-979-592-701-3.
Hadi Bashori 2015, p. 125. Hadi Bashori, Muhammad (2015). Pengantar Ilmu Falak (in Indonesian). Jakarta: Pustaka Al Kautsar. ISBN 978-979-592-701-3.
Hadi Bashori 2015, p. 123. Hadi Bashori, Muhammad (2015). Pengantar Ilmu Falak (in Indonesian). Jakarta: Pustaka Al Kautsar. ISBN 978-979-592-701-3.
Hadi Bashori 2015, pp. 125–126. Hadi Bashori, Muhammad (2015). Pengantar Ilmu Falak (in Indonesian). Jakarta: Pustaka Al Kautsar. ISBN 978-979-592-701-3.
Hadi Bashori 2015, pp. 126–127. Hadi Bashori, Muhammad (2015). Pengantar Ilmu Falak (in Indonesian). Jakarta: Pustaka Al Kautsar. ISBN 978-979-592-701-3.
Hadi Bashori 2015, p. 127. Hadi Bashori, Muhammad (2015). Pengantar Ilmu Falak (in Indonesian). Jakarta: Pustaka Al Kautsar. ISBN 978-979-592-701-3.
Hadi Bashori 2015, p. 128. Hadi Bashori, Muhammad (2015). Pengantar Ilmu Falak (in Indonesian). Jakarta: Pustaka Al Kautsar. ISBN 978-979-592-701-3.

brill.com

referenceworks.brill.com

Wensinck 1978, p. 317. Wensinck, Arent Jan (1978). "Kaʿba". In van Donzel, E.; Lewis, B.; Pellat, Ch. & Bosworth, C. E. (eds.). The Encyclopaedia of Islam, Second Edition. Volume IV: Iran–Kha. Leiden: E. J. Brill. pp. 317–322. OCLC 758278456.
Wensinck 1986, p. 82. Wensinck, Arent Jan (1986). "Ḳibla: Ritual and Legal Aspects". In Bosworth, C. E.; van Donzel, E.; Lewis, B. & Pellat, Ch. (eds.). The Encyclopaedia of Islam, Second Edition. Volume V: Khe–Mahi. Leiden: E. J. Brill. pp. 82–83. ISBN 978-90-04-07819-2.
King 1986, p. 83. King, David A. (1986). "Ḳibla: Astronomical Aspects". In Bosworth, C. E.; van Donzel, E.; Lewis, B. & Pellat, Ch. (eds.). The Encyclopaedia of Islam, Second Edition. Volume V: Khe–Mahi. Leiden: E. J. Brill. p. 83–88. ISBN 978-90-04-07819-2.

cnn.com

Khalid 2016. Khalid, Tuqa (2016). "Sun will align directly over Kaaba, Islam's holiest shrine, on Friday". CNN.

neliti.com

Raharto & Surya 2011, p. 25. Raharto, Moedji; Surya, Dede Jaenal Arifin (2011). "Telaah Penentuan Arah Kiblat dengan Perhitungan Trigonometri Bola dan Bayang-Bayang Gnomon oleh Matahari". Jurnal Fisika Himpunan Fisika Indonesia (in Indonesian). 11 (1). Universitas Indonesia: 23–29. ISSN 0854-3046.
Raharto & Surya 2011, p. 24. Raharto, Moedji; Surya, Dede Jaenal Arifin (2011). "Telaah Penentuan Arah Kiblat dengan Perhitungan Trigonometri Bola dan Bayang-Bayang Gnomon oleh Matahari". Jurnal Fisika Himpunan Fisika Indonesia (in Indonesian). 11 (1). Universitas Indonesia: 23–29. ISSN 0854-3046.

uu.nl

staff.science.uu.nl

van Gent 2017 places it on 12/13 January and 28 November while Hadi Bashori 2015, p. 127 mentions 14 January and 29 November. According to both sources, observations made within one or two days at the same time are accurate. van Gent, Robert Harry (2017). "Determining the Sacred Direction of Islam". Webpages on the History of Astronomy. Hadi Bashori, Muhammad (2015). Pengantar Ilmu Falak (in Indonesian). Jakarta: Pustaka Al Kautsar. ISBN 978-979-592-701-3.
van Gent 2017. van Gent, Robert Harry (2017). "Determining the Sacred Direction of Islam". Webpages on the History of Astronomy.

worldcat.org

search.worldcat.org

Wensinck 1978, p. 317. Wensinck, Arent Jan (1978). "Kaʿba". In van Donzel, E.; Lewis, B.; Pellat, Ch. & Bosworth, C. E. (eds.). The Encyclopaedia of Islam, Second Edition. Volume IV: Iran–Kha. Leiden: E. J. Brill. pp. 317–322. OCLC 758278456.
Raharto & Surya 2011, p. 25. Raharto, Moedji; Surya, Dede Jaenal Arifin (2011). "Telaah Penentuan Arah Kiblat dengan Perhitungan Trigonometri Bola dan Bayang-Bayang Gnomon oleh Matahari". Jurnal Fisika Himpunan Fisika Indonesia (in Indonesian). 11 (1). Universitas Indonesia: 23–29. ISSN 0854-3046.
Raharto & Surya 2011, p. 24. Raharto, Moedji; Surya, Dede Jaenal Arifin (2011). "Telaah Penentuan Arah Kiblat dengan Perhitungan Trigonometri Bola dan Bayang-Bayang Gnomon oleh Matahari". Jurnal Fisika Himpunan Fisika Indonesia (in Indonesian). 11 (1). Universitas Indonesia: 23–29. ISSN 0854-3046.