The Ghost of Cassiopea dataset captures 136 frames through a Svbony dualband filter, each exposed for 180 seconds, accumulating nearly 6.8 hours of total integration time. Acquired over two nights in late September 2025, the data was gathered using a ZWO FF65 telescope paired with a ZWO 585 MC Pro camera, mounted on an Ioptron HAE16c tracking system. The dualband filter isolates specific emission wavelengths, making this collection particularly suited for nebular imaging in the Cassiopeia constellation region.
This dataset is available as a free download under a CC BY-NC 4.0 license, permitting copying, modification and redistribution for non-commercial purposes. The substantial integration time and narrowband approach provide a solid foundation for processing faint nebular structures and revealing detail in hydrogen and oxygen emission regions.
Generated from the dataset's metadata; the author's description above is authoritative.