This dataset captures NGC 1499, the California Nebula, through narrowband imaging spanning ten nights in October 2021. The collection delivers 22.9 hours of total integration using a TS-65Q APO Refractor paired with a ZWO ASI1600MM Pro camera on a Sky-Watcher EQ6 Pro mount. The data comprises 84 frames through Baader 7nm Hydrogen-alpha, 111 frames through Baader 8.5nm Oxygen-III, and 80 frames through Baader 8.5nm Sulfur-II filters, all at 300-second exposures. This SHO palette combination provides the spectral information needed to render the nebula's ionized gas structures in mapped color. Licensed under CC BY 4.0, the raw frames permit copying, modification, and redistribution with attribution. Access requires a one-time purchase of approximately $17.90, providing calibrated sub-exposures ready for stacking and processing into final images of this large emission nebula in Perseus.
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