This Heart Nebula dataset comprises 46.25 hours of integration captured between September 2nd and 16th, 2025, using an Askar 71F telescope paired with a ZWO ASI 533MC Pro camera on an AM3 mount. The collection includes 460 frames through an Optolong L-Extreme HA-OIII 7nm filter and 465 frames through an Askar Color Magic D2 SII-OIII 6nm filter, each exposed for 180 seconds. The dual narrowband approach isolates hydrogen-alpha, oxygen-III, and sulfur-II emission lines, providing flexibility for bicolor or tricolor processing workflows. Available under a CC BY-NC 4.0 license for approximately $17.90, this dataset permits copying, modification, and redistribution for non-commercial purposes, making it suitable for hobbyists exploring advanced narrowband techniques or refining their processing skills on a substantial emission nebula target.
Generated from the dataset's metadata; the author's description above is authoritative.