The name of the constellation is cygnus.
There is no such star. Any of the major stars in the constellation Cygnus has "cygni" as part of its name - this is simply a suffix that means "of the Cygnus constellation".
Something is missing from your question. Cygni is not a star. The constellation name is Cygnus. The star will have a name like Alpha Cygni or 25 Cygni.
The other name for Cygnus the swan is the Northern Cross. This constellation is often associated with the shape of a flying swan due to its pattern of stars.
SWAN.......Cygnus is the SWAN.
Deneb belongs to the constellation Cygnus, also known as the Northern Cross. It is one of the brightest stars in the night sky and is located in the tail of the swan shape that gives the constellation its name.
Cygnus is Latin for "swan." In astronomy, Cygnus is also the name of a northern constellation known as the Swan.
The star constellation shaped like a swan is called Cygnus. It is also called the Northern Cross.
Pegasus - the winged horse. It's just east of Cygnus the Swan, and south of Cassiopeia which looks like a "w"
constellation is a group of stars with a name assigned to it ;
Sorry, but this doesn't make sense! For a start, 'nebulae' is plural. And Cygnus isn't in a nebula. Cygnus (like all the constellations) is just a name given to a region of sky that appears to resemble some object or other from the arrangement of its stars. None of the stars in a given constellation usually have any connection with the others. They just lie in the same general direction. Deneb, the brightest star in Cygnus, is over 1000 lightyears away, but close to it (in the sky!) we have 61 Cygni, which is one of the closest stars to us, at about 11 lightyears. A constellation is a purely human construct, like (say) a country with its borders.
The name Cygnus comes from the Latin word for swan. In Greek mythology, Cygnus was associated with the story of Zeus turning himself into a swan to seduce Leda, wife of the Spartan king Tyndareus. The constellation of Cygnus is often depicted as a swan in the night sky.