This dataset captures Sh2-115, a hydrogen emission nebula, through 24 hours of narrowband exposures collected between July 1 and July 12, 2025. The imaging campaign employed a Sky-Watcher Esprit 120mm refractor paired with a ZWO ASI2600MM Pro monochrome camera on an AM5 mount. The data comprises 114 frames through Antlia 3nm H-alpha (5 minute exposures each), 83 frames in OIII, and 91 frames in SII, all using matched 3nm filters at 2 inch diameter. This HSO palette combination enables detailed mapping of ionized hydrogen, doubly ionized oxygen, and ionized sulfur across the nebular structure. The files are offered under a CC BY-NC 4.0 license for approximately $17.90, permitting copying, modification and redistribution for non-commercial applications.
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