W. Smyth: 'A large but pale granulated cluster of small stars. Five stars around it in a form of a crucifix....... After long gazing becomes more compressed in the center.'
K. G. Jones's "Messier's Nebulae & Star Clusters": 'M-107 is rather small and faint at first sight but rapidly improves with closer attention. The outline seems a little irregular but can be seen to extend to six arc minutes from a distinct but not quite sharp center.'
Distance estimate: 20 thousand light years. (But Click here for the latest news on Globular Star Cluster distances and ages!!)