Credits and Sources
With the exception of those listed below under Additional Photo Credits, all photos in this Messier catalog were obtained from the National Optical Astronomy Observatory, NOAO/AURA/NSF. All images are used here with written permission from the NOAO.
Additional Photo Credits:
- Two Micron All Sky Survey (2MASS) - M1, M10, M13, M14, M15, M19, M32, M40, M49, M54, M56, M60, M62, M67, M68, M69, M84, M93, M107
- Clipart.com - M31, M42, M45
- M33 -
- M43, M51 -
- M57, M80 -
- M81 -
- Mallas, John and Everitt Kreimer. The Messier Album. 248 pp., hardcover. Sky Publishing Corporation, 1978
- Eicher, David J. The Universe from Your Backyard. 188 pp. hardcover. Kalmbach Publishing Company, 1988.
- SEDS Messier Database: Object descriptions and coordinates.
- The Complete Messier Catalog: Object Descriptions and coordinates.