M127

M127 is a designation used in several different fields to identify distinct items. The most widely recognized usage is in astronomy, where Messier 127 (M127) refers to a galaxy listed in the Messier Catalogue.

M127 is a relatively faint, diffuse object, cataloged by Charles Messier in the 18th century, and is typically observed with mid- to large-aperture telescopes under dark skies. Beyond its status as a catalog entry, M127 is not a physical object with a standard set of properties; its appearance depends on observing wavelength and instrumentation. It is generally studied in the context of galaxy morphology and stellar populations of low-luminosity systems.

In other areas, M127 has been used as a model or designation for various items in military, industrial, and scientific inventories. These uses are unrelated to the astronomical object and are defined by their respective organizations and time periods. Because M127 spans multiple domains, any discussion of M127 should specify the context to avoid ambiguity.