This Gecko Nebula dataset comprises 45.75 hours of integration collected between October 4 and 27, 2025, using an Askar 71F telescope with a ZWO ASI 533MC Pro camera on an AM3 mount. The acquisition consists of 485 frames through an Optolong L-Extreme HA-OIII 7nm filter and 430 frames through an Optolong L-Quad Enhance filter, all at 180-second exposures. The dual-filter approach captures both narrowband hydrogen-alpha and oxygen-III emissions alongside broader spectral data, providing flexibility for processing workflows that emphasize nebular structure or integrate continuum detail. Available under a CC BY-NC 4.0 license for approximately $17.90, this dataset permits copying, modification, and redistribution for non-commercial applications.
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