HR15N

HR15N is a designation that appears in reference catalogs and does not by itself identify a single object. The "HR" prefix is commonly associated with the Harvard Revised Photometric Catalog (Bright Star Catalogue), in which entries are assigned increasing numbers. In some astronomical datasets, a trailing letter such as "N" is used to differentiate components in multiple-star systems or to denote a northern component, so HR15N would refer to the northern component of the HR 15 system, if such a designation is used by that catalog. However, the specific meaning depends on the catalog, and not all systems that include HR references use an "N" suffix; some may use letters like A and B, or symbols for components.

In other scientific domains, HR15N can appear as a project code, a dataset identifier, or a gene/transcript symbol in specialized repositories. Because many databases reuse short alphanumeric labels, the precise entity behind HR15N must be confirmed from the source documentation, metadata, or accompanying records.

If you are researching HR15N, the recommended approach is to locate the catalog or dataset where the code appears and review the accompanying notes for the designation scheme, including coordinates, identifiers, and qualifiers. Without the original context, HR15N remains a multi-use label rather than a uniquely defined object.

See also references to the Harvard Revised Catalogue, binary star designations, and data cataloging practices.