2MASS Large Galaxy Atlas: Infrared Photometry for Galaxies 2-30 Arcmin

The 2MASS Large Galaxy Atlas provides photometric data for galaxies ranging in size from 2 to 30 arcminutes. It was produced by the National Aeronautics and Space Administration and offers a typical resolution of approximately 3 arcseconds in the J, H, and Ks infrared bands. The atlas provides aggregate galaxy flux and detailed infrared morphology views.

Use Cases

• Analyze galaxy morphology based on detailed infrared imagery.
• Study aggregate infrared flux for galaxies based on the provided photometry.
• Compare structural features of galaxies across the J, H, and Ks infrared bands.

Strengths

• Galaxy size range is specified as 2 to 30 arcminutes.
• Typical resolution is approximately 3 arcseconds with 1 arcsecond pixels.
• Data covers three specific infrared bands: J, H, and Ks.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Photometric data from the 2MASS survey.

Freshness

Last updated 2026-03-13 16:39:34.700295; freshness should be verified.