This dataset captures Sh2-308, a bubble-shaped emission nebula in Canis Major, across 7.2 hours of total integration time. The data were acquired between November 10 and November 26, 2024, using a Sky-Watcher Quattro 250P telescope paired with a ZWO ASI2600MM Pro camera on a NEQ6-Pro mount. The narrowband component includes 19 frames through an Antlia 3nm H-alpha filter and 20 frames through an Antlia 3nm OIII filter, each exposed for 600 seconds. RGB channels add broadband detail with 30 red, 29 green, and 29 blue frames at 30 seconds each through Antlia 36mm filters. This HORGB combination allows for both scientific narrowband processing and natural-color renditions. The dataset is available as a one-time purchase for approximately $82.90 under a CC BY 4.0 license, permitting modification and redistribution with appropriate attribution.
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