This widefield dataset captures NGC 3587, better known as the Owl Nebula, alongside its companion galaxy M108. The collection comprises 436 frames totaling 36.3 hours of integration time, acquired between March 6 and May 1, 2026. Imaging was performed with a Sky-Watcher Esprit 120mm refractor and ZWO ASI2600MM Pro camera on an AM5 mount. The data includes 159 luminance frames at 300 seconds each, plus RGB channels (25 red, 25 green, 27 blue) and narrowband exposures through 3nm filters (122 H-alpha, 78 OIII), all using Antlia 2-inch filters. This combination of broadband and narrowband data enables flexible processing approaches for both the planetary nebula and surrounding field. Released under CC0 1.0 Universal license, the dataset is available for approximately $22.90 as a one-time purchase.
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