Code for Reading Cluster Format FilesTo help you read the cluster format files it may be helpful to look at some of the code we use. We have a Fortran 90 structure called "a_star" which closely matches the contents of a line of the file. This can be found in define_star.f90. This code also has a routine for reading and writing a single line of the file. This is working code, in the sense that we only recently regularised the internals of our own code so that the sign of the declination is passed via a character. Hence define_star.f90 will also cope with code that does things like set all the elements of the declination negative.