This dataset captures LDN 821, also catalogued as SH2-96, through 25.6 hours of narrowband imaging collected between April and June 2026. The data comprises 175 five-minute hydrogen-alpha exposures and 132 matching OIII frames, all acquired through Antlia 3nm filters with a ZWO ASI2600MM Pro camera mounted on a Sky-Watcher Esprit 120mm refractor. The AM5 mount tracked this dark nebula complex over multiple sessions, building signal depth in both emission lines. The dataset is offered as a one-time purchase at approximately $22.90 under a Creative Commons BY-NC 4.0 license, permitting copying, modification and redistribution for non-commercial applications. Processors receive calibrated monochrome subs ready for bicolour or mapped-colour workflows, with the dual narrowband channels enabling flexible aesthetic choices in rendering this obscure molecular cloud region.
Wygenerowano z metadanych zestawu; opis autora powyżej jest wiążący.