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

[AJ Misra]

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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