This dataset captures NGC 6188, commonly known as the Rim Nebula, a striking emission complex in the southern constellation Ara often called the Dragons of Ara. The data consists of 25 frames through an Antlia 3nm H-alpha 36mm filter, each exposed for 60 seconds, yielding approximately 0.42 hours of total integration. All frames were acquired on 2026-04-12 using a Sky-Watcher Quattro 250P / 10-S telescope paired with a Toupteck 2600MM camera on an HEQ5 pro mount. The narrowband H-alpha filter isolates ionized hydrogen emission, revealing the nebula's intricate structure sculpted by stellar winds from young, massive stars. This dataset is released under CC0 1.0 UNIVERSAL, placing it in the public domain with no copyright restrictions, and is available as a free download for calibration, stacking experiments, or integration into larger mosaics.
Generated from the dataset's metadata; the author's description above is authoritative.