... Science User Portal . ... Survey Telescopes . ... Star Clusters . ... This colour image of the region known as NGC 2264 тАФ an area of sky that includes the sparkling blue baubles of the Christmas Tree star cluster and the Cone Nebula тАФ was created from data taken through four different filters (B, V, R and H-alpha) with the Wide Field Imager at ESO's La Silla Observatory, 2400 m high in the Atacama Desert of Chile in the foothills of the Andes. ... Christmas Tree Cluster , Cone Nebula , NGC 2264 ...