This is color-composite image taken with the Wide-Field Imager camera at the 2.2m MPG/ESO telescope located at La Silla, in Chile.
The image shows the area surrounding the stellar cluster NGC 2467, located in the southern constellation of Puppis (" The Stern" ). With an age of a few million years at most, it is a very active stellar nursery, where new stars are born continuously from large clouds of dust and gas. The image, looking like a colourful cosmic ghost which contains the open clusters Haffner 18 (bottom right) and Haffner 19 (upper right).
Haffner 18, a group of mature stars that have already dispersed their birth nebulae, represents the completed product or immediate past of the star formation process.
Haffner 19 is a Galactic cluster, originally reported by Haffner (1957), it has a spherical form because of its associated HII region is a Strömgren sphere is due to the presence of A0-like pre-main sequence stars.
Composition of the RGB image is: Halpha+V, V and B filters