Terzan 5 is one of the brightest of the Terzan globular clusters and to say the least it is very red. There was virtually nothing in the green and blue channels. I blended some near infrared luminance (greater than 700nm) into this as an experiment which mostly seems to have worked in that the stars of the globular are somewhat more prominent.
Cheers
Steve
http://members.pcug.org.au/~stevec/T...L6303_RC14.htm