SB9: Spectroscopic Binary Orbits for Over 3,000 Systems

Over three thousand binary systems are represented in this dynamic catalog of spectroscopic orbits, which continues a 35-year series of compilations. The National Aeronautics and Space Administration (NASA) HEASARC maintains this version, updated regularly from the CDS source. The reference publication reflected the catalog's status as of May 1, 2004, when it contained 2694 orbits for 2386 systems.

Use Cases

• Modeling stellar masses and orbital dynamics based on spectroscopic orbit data
• Analyzing binary star system evolution based on cataloged orbital parameters
• Validating theoretical astrophysical models against observed spectroscopic orbits

Strengths

• Contains orbits for over three thousand binary systems
• Regularly updated, with this version synchronized within a week of CDS updates
• Continues a 35-year series of compilations, providing historical continuity

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment

Provenance

Source

National Aeronautics and Space Administration (NASA) HEASARC, based on CDS Catalog B/sb9

Collection Method

Created from files main.dat, alias.dat, orbits.dat and notes.txt from the CDS catalog

Time Range

Catalog status reflects updates beyond the May 1,我们发现2004 reference point

Freshness

Last updated 2026-03-13 20:06:28.102546; freshness should be verified

Geography

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