An example of a "double" one of these is called Caldwell 14. Gosta Lynga compiled the Lund catalog of these systems. These objects are classified by their detachment and concentration by the roman num
An example of a "double" one of these is called Caldwell 14. Gosta Lynga compiled the Lund catalog of these systems. These objects are classified by their detachment and concentration by the roman numerals 1 to 4; that system was developed by Robert Trumpler. These systems are thought to originate from the same giant molecular cloud, meaning their constituents have a similar (*) age and chemical composition. These bodies are not found in elliptical galaxies, and they are commonly found in the disk of a galaxy instead of the halo. Examples include the Pleiades. For 10 points, name these groups of young stars that are weakly gravitationally bound.
An example of a "double" one of these is called Caldwell 14.
open cluster [or galactic cluster]