[INDOLOGY] Inquiry on Equatorium and Planetary Diagrams in Sanskrit Sources

[Jean Michel DELIRE]

Hello,

Is this instrument comparable to the following one (see photos) ?

Best,

Jean Michel Delire

Le lun. 31 mars 2025 à 13:56, AJ Misra via INDOLOGY <
indology at list.indology.info> a écrit :

> Dear colleagues:
>
> I am asking on behalf of a colleague who is not  a member of Indology
> listserv. I have excerpted his email below.
>
> ──
>
> I’m writing to kindly ask whether you’ve come across, in Sanskrit—or any
> other South or East Asian—astronomical or primary sources, any description
> or reference to an astronomical instrument known in modern literature as an
> *equatorium*.
>
>
>
> I’m also wondering if you’ve seen any diagrams in Sanskrit texts that
> depict planetary models enclosed by a graduated ecliptic circle. For
> reference, I’ve attached two examples of such diagrams from Arabic and
> Persian sources.
> [image: image.png]
> [image: image.png]
>
>  ──
>
> I welcome any suggestions/comments on this.
>
> With kind regards,
> AJ
> --
>
> <https://www.mpiwg-berlin.mpg.de/research/departments/max-planck-research-group-astra>
> *Anuj MISRA*, Ph.D (he/him)
> *Max Planck Research Group Leader
> <https://www.mpiwg-berlin.mpg.de/people/amisra>*
> RG: Astral Sciences in Trans-Regional Asia (ASTRA
> <https://www.mpiwg-berlin.mpg.de/research/departments/max-planck-research-group-astra>
> )
> Max Planck Institute for the History of Science (MPIWG)
> Boltzmannstraße 22, 14195 Berlin, GERMANY
>
> Room 102, Harnackstraße 5
> +49 30 22667 313
> amisra at mpiwg-berlin.mpg.de
>
> ─ *in conjunction with*─
>
> *Professor of the History of Science and the History of Knowledge
> <https://www.geschkult.fu-berlin.de/en/e/wissensgeschichte/mitarbeiter_innen/Anuj-Misra/index.html>*
> Institute for the History of Knowledge in the Ancient World
> Department of History and Cultural Studies, Free University of Berlin
> Arnimallee 10, 14195 Berlin, GERMANY
>
> Room 205
> +49 03 838 59046
> a.misra at fu-berlin.de
>
> ─
> *Affiliated External Researcher
> <https://ccrs.ku.dk/staff/?pure=en/persons/663586>* (2024─25)
> Department of Cross-Cultural and Regional Studies (CCRS)
> University of Copenhagen, Copenhagen, DENMARK
> anuj.misra at hum.ku.dk
>
> ─
> *Adjunct Senior Fellow <https://profiles.canterbury.ac.nz/AJ-Misra>*
> (since September 2021)
> School of Mathematics and Statistics | Te Kura Pāngarau
> University of Canterbury | University of Canterbury
> Christchurch, NEW ZEALAND
> aj.misra at canterbury.ac.nz
>
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