The star Cygni is a star that no one has ever actually seen
But in spite of its enormous size and luminosity, the star Cygni is a star that no one has ever actually seen. It is hidden behind a nebula of its own creation, where it has been detected by its effects with the aid of science, and has even been measured with advanced instrumentation.
The discovery of the star was so significant in astronomy, perhaps for its illusive nature, that the initials of its discoverers, Neugebauer, Martz, and Leighton, became attached to the name of the star.
Historically the giant start N.M.L. Cygni was not discovered until 1965, which was the very year in which the equally big, solar collapse, took another leap forward.