Introduction | Map | My Own Observations | References
On this page I collect my observations of the open star cluster NGC 2244, called Christmas Tree Cluster, in the constellation Monoceros/Unicorn.
The open star cluster NGC 2264 in the constellation Monoceros / Unicorn, is called Christmas Tree Cluster because it resembles a Christmas tree, depending on the observation instrument standing upright or upside down. The star cluster should be recognizable even with the naked eye. It also includes the Cone Nebula, a dark cloud.
Size: 20' (Stoyan)
Distance: 2,500 light years (Stoyan)
Ranking: *** (Stoyan)
NGC 2264, the Christmas Tree cluster; below it, the galactic emission nebula 2237-39/46 (Rosette Nebula) and cluster NGC 2244 inside the nebula