NGC 2264, known as the Christmas Tree Cluster, was captured over 26.1 hours of total integration time between January 30 and February 9, 2025. The dataset comprises 313 narrowband frames: 157 in Antlia 3nm H-alpha, 148 in OIII, and 8 in SII, all at 300-second exposures. Imaging was performed with a TS-130 APO refractor and ASI294MM Pro camera on an AM5 mount.
This emission nebula and open cluster in Monoceros offers rich structural detail across multiple ionization zones. The substantial H-alpha and OIII coverage enables robust mapping of hydrogen and oxygen emission, while the limited SII data provides supplementary sulfur information. The dataset is available as a one-time purchase for approximately $17.90 under a CC BY-NC 4.0 license, permitting copying, modification, and redistribution for non-commercial purposes.
Generated from the dataset's metadata; the author's description above is authoritative.