m98Messier 98 (M98) is a faint and elongated galaxy in the constellation Coma Berenices, discovered by Pierre Méchain in 1781. It has a low surface brhtness, a dusty disk, a star forming nucleus and a history ofLearn what the M98 code does and how to use it to call a separate program from within another program. See the format, parameters, benefits and drawbacks of subprograms, and how to nest them.