NGC 2264 designates both the Christmas Tree Cluster and the Cone Nebula in the constellation Monoceros. The bright star in the cluster is 15 Mon while the cluster itself contains about 80 stars spanning 20 ly and is approximately 2,600 ly distant.

Observation Date: 21-01-2023

Scope: Horizon 72ED

Camera: ASI533 MC Pro

Mount: iEXOS-100 PMC8

Control: ASIAir Pro

Filter: Altair Quadband

Exposure: 300s x 12 (3600s)

Processed & Annotated:

• APP: (Hα & Oiii),

• Pixinsight :

• PixelMath R=Ha, G= ((Oiii*Ha)^~(Oiii*Ha))*Ha + ~((Oiii*Ha)^~(Oiii*Ha))*Oiii, B=Oiii