The teaching method I propose is the actual observations of the objects through a telescope, with the corresponding explanation. The range of objects is wide and contains some of the best examples of their type. This paper explores the value of the Messier Catalogue in the teaching of Astronomy and Earth Science. While the objective of Messier in compiling the catalogue was to guide comet hunters not to be confused by his objects which he thought looked like comets, the Messier Catalogue as it later became known became a standard guide to astronomers for a study of the sky’s “greatest hits” or the best samples of objects which can be observed and studied. The catalogue contains galaxies, emission nebulae, a supernova remnant, a double star, globular clusters, open clusters, an asterism, a star cloud, and planetary nebulae. The French astronomer Charles Messier (1730- 1817) compiled a catalogue of astronomical objects which reached109 innumber after additions by later astronomers were added.
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