COCD-1: 130 New Galactic Open Clusters with Astrophysical Parameters

130 newly discovered Galactic open clusters identified in the All-Sky Compiled Catalogue of 2.5 Million Stars. NASA HEASARC created this table in May 2011 based on catalog files from the CDS. For these clusters, the authors determined homogeneous astrophysical parameters including size, distance, motion, and age.

Use Cases

• Studying the distribution and properties of newly discovered open clusters based on the systematic all-sky search described.
• Analyzing relationships between cluster brightness, member count, and angular radius as mentioned in the description.
• Modeling stellar evolution and cluster dynamics using derived parameters like age, distance, and proper motion.
• Validating cluster detection and parameter determination methods against the 520 previously-known clusters referenced.

Strengths

• Contains a homogeneous set of astrophysical parameters for 130 clusters, determined using consistent methods.
• Includes data on approximately 6,200 possible member stars, with about 2,200 flagged as most probable.
• Provides derived parameters for 69 clusters, including mean radial velocities.
• Is accompanied by a remote data product of 130 PostScript plots illustrating the quality of the parameter determination.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect observational bias inherent to the source catalog (ASCC-2.5).

Provenance

Source

NASA HEASARC, based on CDS Catalog J/A+A/440/403/.

Collection Method

Systematic screening of the ASCC-2.5 all-sky catalog using objective methods to detect new clusters.

Time Range

Based on the ASCC-2.5 catalog (Kharchenko, 2001).

Freshness

Last updated 2026-03-13 17:58:39.763888; freshness should be verified.

Geography

All-sky Galactic coverage.