OKMCD

Astronomy is the scientific study of the universe and the objects in it, including stars, planets, nebulae, and galaxies. Astronomy deals with the position, size, motion, composition, energy, and evolution of celestial objects. Astronomers analyze not only visible light but also radio waves, x-rays, and other ranges of radiation that come from sources outside the Earth's atmosphere.

The Messier Marathon is hosted each spring by the TUVA Astronomy Club in conjunction with the Astronomy Club of Tulsa.

A Messier marathon is an informal competition to attempt to find as many Messier objects as possible during one night. Throughout March conditions are favorable to see all 110 objects. The Messier catalog was compiled by French astronomer Charles Messier during the late 18th century and consists of 110 relatively bright deep sky objects (galaxies, nebulae, and star clusters).