False color composite image of Palomar 4 galactic cluster, obtained on 2003 March 27. Image is a composition of 6 co-added 120 second exposures with R filter.
The image scale is 2.49 arc sec/pixel. Image obtained by B. Dintinjana and a group of students observing remotely from AGO Observatory in Ljubljana.
With distance of 110kpc from the Sun, Palomar 4 is one of the most distant galactic clusters.