Theli-Forum is a dedicated online platform for users of THELI, a sophisticated software package designed for the reduction of astronomical image data. As a collaborative space, it invites participants to share insights, feedback, and queries related to the software, fostering a vibrant community atmosphere. The forum features distinct sections to discuss various aspects of THELI, including installation guides, camera setups, and detailed methodologies for astrometry and photometry.

Users can engage with the latest iteration, Theli 3, while also accessing resources pertaining to the earlier version, Theli 2. In addition to structured discussions, the platform encompasses a casual area for small talk and introductions, enabling users to connect on a personal level. With a robust history of contributions and an active membership base, Theli-Forum serves as an invaluable resource for both novices and experts in the field of astronomical data processing and analysis