See related link for a full list.
Cygnus is a constellation made up of many stars - it will not have a colour.
Cygnus is a constellation and contains many stars, including Deneb, the brightest star in the constellation. There is no specific number of stars that make up Cygnus as constellations are made up of numerous stars that form patterns in the sky.
THere are many, many more stars within Cygnus... but only 7 or so make up the swan.
The Cygnus constellation contains many stars, but one of the most prominent is Deneb, which is a blue supergiant and one of the brightest stars in the night sky. It also contains other notable stars such as Albireo, Sadr, and Gienah.
Cygnus is primarily made up of young, hot stars, so temperatures can range from a few thousand to tens of thousands of degrees Celsius. The color of Cygnus stars can vary, but many of them emit white or blue light due to their high temperatures.
There are 9 major stars in Cygnus. There are 6-9 stars, depending on which map you look on. Some earlier maps show 6 stars, but some other maps show 9 stars.
In total, there are 364 stars and other astonomical objects in the constellation.
Vulpecula has 5 main stars in its system. it is bordered by the constellations Lyra, Hercules, Delphinus, Cygnus and Pegasus.
6-9. It depends on which map you're looking at for constellations. More recent ones show 9, but earlier ones show 6.
Constellations are defined by MANY stars not just one. Given this fact your question is obviously meaningless.
The famously first-observed black hole in Cygnus known as Cygnus X-1 is about 6,070 light years distant.
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.