| Name: SHUBHA BS |
| Affiliation: INDIAN INSTITUTE OF ASTROPHYSICS |
| Conference ID: ASI2026_66 |
| Title: Visualizing the diagrams in Astronomy manuscripts |
| Abstract Type: Poster |
| Abstract Category: Education, Outreach and Heritage |
| Author(s) and Co-Author(s) with Affiliation: Shubha BS(Indian Institute Of astrophysics, Bangalore, 560034, India), Annapurni Subramaniam(Indian Institute Of astrophysics, Bangalore 560034, India), B S Shylaja(Jawaharlal Nehru Planetarium, Bengaluru, 560001) |
| Abstract: Diagrams played a fundamental role in explaining and visualizing celestial phenomena in astronomical texts. Almost every treatise included a dedicated chapter titled Parilekhana, which laid down systematic procedures for the construction and use of such diagrams. These visual aids were not merely illustrative but served as essential tools for conveying observational perspectives and computational reasoning. This talk presents selected examples from different manuscript traditions to demonstrate the diverse diagrammatic techniques employed by astronomers. The diagrams clearly bring out the perceptual and directional distinctions associated with the east–west axis, which are required for accurate astronomical interpretation of eclipses. In addition, the section on Śṛṅgonnati, concerned with representing the orientation and inclination of the lunar cusps, integrates specialized diagrams that further elucidate the observational framework underlying lunar phenomena. |
