The invention of technological gadgets has made the universe seemingly small. Today, however, people have learned that the sun is just a star and is seen as big because of its proximity to Earth, which is about 150 million km away.

NGC 5139 or commonly known as the Omega Centauri is considered to be the largest and brightest among other star clusters found and archived throughout the years. It is usually found in the southern skies or in the southern hemisphere and slowly moves up north during the season of spring.

The Omega nebula is a star-forming region in the constellation of Sagittarius. It is also called as the Swan Nebula and the Horseshoe Nebula, as it takes the shape of both a swan and a horse shoe. It was discovered by Swiss astronomer Philippe Loys de Chéseaux in 1745-1746. It is just one of bodies with nebulae property on his list. It was also referred to as Messier 17 (M17), in respect to its cataloguer Charles Messier in 1764.

The Nebulae and Clusters of Stars NGC, or New General Catalogue is a list or catalogue of deep sky objects. It was first compiled by a person named J. L. E. Dreyer in 1888, using observed data from various astronomers, among them William Herschel and his son, and James Dunlop. Dreyer was commissioned by the Royal Astronomical Society to do the elaborate work.

Trapezium Cluster, also known as the Orion Trapezium cluster is a tight group of stars in the constellation of Orion and the center of the Orion Nebula. Galileo is credited with its discovery when he sketched the stars in 1617 although he did not notice the nebulosity.