Sky survey

2MASS

Also known as Two Micron All Sky Survey

Observatories

Overview

The Two Micron All Sky Survey imaged the entire sky in three near-infrared bands, cataloguing hundreds of millions of stars and galaxies.

The primary and reference sources this topic draws on.

NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.