IC 1396, commonly known as the Elephant's Trunk Nebula, is presented here as a narrowband dataset totaling 21.3 hours of integration time. The data was acquired between April 4 and May 31, 2023, using a TS-125 APO Refractor paired with an ASI294MM Pro camera on an AM5 mount. The collection comprises 95 frames through an Antlia 3nm H-alpha filter (300 seconds each), 73 frames in OIII, and 88 frames in SII, all at matching exposure lengths. This tri-band narrowband approach isolates emission from ionized hydrogen, oxygen, and sulfur within the nebula's structure. The dataset is available as a one-time purchase for approximately $7.90 under a CC BY-NC 4.0 license, permitting copying, modification, and redistribution for non-commercial purposes.
Generated from the dataset's metadata; the author's description above is authoritative.