Large Bright Quasar Survey: Positions, Redshifts, and Magnitudes for 1,055 Quasars

A catalog of 1,055 quasars from the Large Bright Quasar Survey provides celestial positions, redshifts, and magnitudes. The data was compiled by NASA HEASARC in July 1999, incorporating corrections and updates from the original discovery papers. Positions were rederived using the PPM catalog for an improved reference frame.

Use Cases

• Train models for quasar identification based on celestial coordinates and magnitudes.
• Analyze the distribution of quasar redshifts to study cosmic evolution.
• Validate astronomical coordinate transformation methods using the PPM-catalog-derived positions.
• Benchmark redshift calculation algorithms against the cross-correlation results provided.

Strengths

• Contains data for 1,055 specific quasars, providing a substantial sample.
• Includes corrected redshifts and designations, addressing errors from original papers.
• Celestial positions were rederived using the PPM catalog for improved accuracy.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last updated 2026-03 19:05:45.016049; freshness should be verified.

Provenance

Source

NASA HEASARC, based on a table provided by the first author, Paul Hewett.

Collection Method

Catalog compiled from the LBQS survey papers, with corrections and additions.

Time Range

Based on survey data from the original LBQS papers, compiled in 1999.

Freshness

Last updated 2026-03-13 19:05:45.016049.

Geography

Celestial coordinates covering the survey area of the LBQS.