IC 443, also known as Gem A, is a supernova remnant captured through narrowband imaging over nearly 25 hours of total integration time. The dataset spans acquisitions from late January through late February 2023, using a TS-125 APO Refractor and ASI294MM Pro camera on an AM5 mount. The data comprises 125 frames through Antlia 3nm H-alpha filters at 300 seconds each, 98 frames in OIII, and 72 frames in SII, all at 1.25 inch format. This tri-band narrowband approach isolates the ionized gas structures characteristic of this stellar explosion remnant in Gemini. The files are available as a one-time purchase at approximately $4.90 under CC BY-NC 4.0 licensing, permitting copying, modification and redistribution for non-commercial purposes.
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