What is the designation for the large nebula located in the constellation Dorado?

The large nebula located in the constellation Dorado is designated as 30 Doradus, which is also commonly referred to as the Tarantula Nebula. This nebula is well-known for being one of the most active star formation regions in the Local Group of galaxies, particularly within the Large Magellanic Cloud.

30 Doradus is prominent due to its extensive area of star formation and the presence of young, massive stars that illuminate the surrounding gas and dust. It plays a crucial role in our understanding of stellar evolution and the processes involved in star formation. The nebula's visibility and characteristics have made it a subject of many astronomical studies and observations.

The other designations mentioned do not correspond to the nebula in question. NGC 1234 refers to a different object entirely, while M83 pertains to a galaxy, and IC 434 is associated with the Horsehead Nebula in the constellation Orion. Thus, 30 Doradus is the correct identification for the large nebula in the constellation Dorado, highlighting its importance and distinctiveness among astronomical objects.