What does this number measure?
A long concentration of galaxies identified by the Sloan survey. Published length of the structure under the cosmological convention of the 2005 study, not its distance. The article's summary reports 1.37 billion light-years. A cosmological length depends on the epoch, the path followed and whether proper or comoving distances are used; values in other catalogues are therefore not necessarily identical. The article's record claim was historical; no current record is asserted here.
Compare the stated dimensions
The comparison uses the number in each fact sheet: altitude, height, diameter, length or distance, depending on the reference. Two values in metres do not necessarily describe the same property.
Source and limitations
The article's notice reports 1.37 billion light-years. A cosmological length depends on the epoch, the path followed and the proper or comoving convention; values from other catalogues are therefore not necessarily identical. The record mentioned in the article was historical: no current record is claimed here.
A generic artistic pattern shared with another entry in the same family; it represents neither a photograph nor an observed map of this structure. The galaxies and filaments are symbolic; only the stated extent follows the length scale factor.