This dataset captures Sandqvist 17, also known as the Dark Wolf or Fenrir, a distinctive dark nebula silhouetted against the star fields of the Milky Way. The collection comprises 17.6 hours of total integration time, gathered between 2 July and 4 July 2026 using a Sky-Watcher 200PDS telescope paired with a ZWO ASI1600MM Pro camera on a Sky-Watcher EQ6 Pro mount. The imaging sequence includes 206 frames through a Baader 7nm Ha filter at 300 seconds each, supplemented by 50 unfiltered frames at 30 seconds exposure. This combination provides both deep narrowband detail of surrounding emission regions and broader contextual data. The dataset is available as a free download under a CC BY-NC 4.0 license, permitting copying, modification and redistribution for non-commercial purposes.
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