Key Highlights
- Over 200 solar researchers convened in Bengaluru to mark the 125th anniversary of the historic Kodaikanal Solar Observatory.
- Major announcements included the digitisation of more than a century's worth of solar photographs and the upcoming National Large Solar Telescope in Ladakh.
- ISRO pledged continued backing for solar missions, while IIA showcased its Visible Emission Line Coronagraph for the Aditya‑L1 spacecraft.
- International participation, highlighted by Prof. John Leibacher of the US National Solar Observatory, underscored the global relevance of KSO’s archives.
Detailed Insights
The five‑day symposium, organised by the Indian Institute of Astrophysics, featured plenary talks, technical sessions, and poster exhibitions that examined recent progress in solar magnetism, the interplay between solar and stellar activity, and predictive space‑weather modelling. Prominent speakers, such as Prof. Abhay Karandikar (DST) and former ISRO chief A.S. Kiran Kumar, outlined strategic road‑maps for leveraging KSO’s legacy data, integrating it with modern solar‑observing platforms, and fostering new instrument proposals for forthcoming ISRO missions.
Special emphasis was placed on the systematic conversion of KSO’s analog photographic plates into high‑resolution digital formats, a task expected to enhance temporal coverage of sunspot cycles, flare statistics, and coronal mass ejection records. The proposed National Large Solar Telescope, slated for the arid heights of Ladakh, aims to complement space‑based assets by delivering unprecedented ground‑based imaging of the solar photosphere and chromosphere.
Key Concepts
- Solar Magnetism: The magnetic field structures generated within the Sun that drive phenomena such as sunspots, flares, and coronal mass ejections.
- Space Weather: The conditions in near‑Earth space influenced by solar activity, affecting satellite operations, communications, and power grids.
- Digitisation of Photographic Archives: The process of converting historic analog solar observations into searchable, high‑fidelity digital datasets.
- Visible Emission Line Coronagraph (VELC): An instrument aboard India’s Aditya‑L1 mission designed to block direct sunlight and study the solar corona in specific emission lines.
- National Large Solar Telescope (NLST): A proposed 3‑meter class telescope to be installed in Ladakh, intended for high‑resolution solar imaging and spectropolarimetry.