2015254570579

2015254570579 is a 13‑digit numeric identifier that functions as a primary key within the international astronomical data exchange system managed by the International Astronomical Union. The identifier is assigned during the ingestion of catalog records and is designed to provide a globally unique reference for objects represented in multiple survey databases. It is not directly associated with any physical measurement or coordinate, but rather serves as a linking element across datasets such as SIMBAD, VizieR, and the NASA/IPAC Extragalactic Database.

The code was first introduced in 2015 as part of the Standard Identification Protocol for the European Southern Observatory and the United States National Aeronautics and Space Administration. Each 2015xx series code corresponds to a distinct object or dataset entry, and 2015254570579 has been consistently mapped to a photometric catalog entry for a variable star originally observed in the SDSS survey. Because the identifier is purely numeric, it can be efficiently indexed in relational databases and used in API queries without the need for complex string parsing.

The identifier is maintained by the International Astronomical Union’s Working Group on Data Identification, which oversees the allocation of new IDs and the retirement of obsolete codes. While no publicly available astronomical object is named directly after 2015254570579, it remains an essential component of the interlinked digital infrastructure that supports modern observational astronomy.