Messier Nebulae: 109 Bright Deep-Sky Objects Cataloged by NASA HEASARC

109 bright, extended astronomical objects compiled by Charles Messier in the 18th century, with magnitudes brighter than 10 and angular sizes from 1 to 100 arcminutes. The catalog is provided by NASA HEASARC and includes 29 globular clusters, 27 open clusters, 27 spiral galaxies, 11 elliptical galaxies, 10 nebulae, and 5 miscellaneous objects. All objects are located north of -35 degrees declination.

Use Cases

• Plan observational sessions based on object types like globular clusters and spiral galaxies.
• Study the distribution of bright deep-sky objects relative to celestial coordinates.
• Cross-reference historical astronomical catalogs using the provided object identifiers.
• Create educational materials or visualizations based on the categorized list of nebulae, star clusters, and galaxies.

Strengths

• Contains 109 well-documented astronomical objects with defined magnitude and size ranges.
• Objects are categorized into specific types, including 29 globular clusters and 27 spiral galaxies.
• Provided by the authoritative NASA HEASARC service.

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 geographic bias inherent to datagov, as all objects are north of -35 degrees declination.

Provenance

Source

National Aeronautics and Space Administration, NASA HEASARC

Collection Method

Electronic version of the historical Messier Catalog, compiled by Charles Messier.

Time Range

18th century compilation, with modern electronic version.

Freshness

Last updated 2026-03-13 19:31:41.642291; freshness should be verified.

Geography

Celestial objects north of -35 degrees declination.