📚 Practice Mode

Famous Astronomical Catalogs

Learn at your own pace with hints and detailed explanations

1 / 15
Multiple Choice

Which astronomical catalog is known for its list of 110 deep-sky objects, including galaxies, nebulae, and star clusters?

  1. Messier catalog
  2. New General Catalog
  3. Henry Draper Catalog
  4. Bright Star Catalog
Change Mode