The 'Jyotish Yantra' (Astrolabe) at the L. D. Institute

The study of the instruments and technology to any science is one of the essential steps for understanding its evolution. Instruments which have survied from various periods in the past will provide the most concrete evidence of the corresponding stages in the evolution of the particular science to which they relate. The collection and systematic

Transcribed from the prepared edition. This is the beginning of the article, not a summary — open the PDF to read it in full.

एल. डी. इन्स्टिट्यूट ने १९५९ में मारवाड़ के एक व्यापारी से जो पीतल का तारायन्त्र खरीदा, उसका अहस्ताक्षरित विवरण — अट्ठाईस सेंटीमीटर व्यास, मातृपट्ट, अङ्कबूत तथा अलिदाद, अट्ठाईस अंश अक्षांश हेतु निर्मित। अक्षरों में जैन और गुजराती रूपों का मिश्रण होने से वह लगभग डेढ़-दो सौ वर्ष पुराना ठहरता है। An unsigned description of the brass planispheric astrolabe the L. D. Institute bought from a Marwar dealer in 1959: twenty-eight centimetres across, with matter, ankabut and alidade, cut for latitude 28 degrees, its lettering mixing Jain and Gujarati forms and so roughly 150 to 200 years old.

Written by the archive’s cataloguers, not by the author.