Cygnus is a constellation comprising 84 stars which appear in the Bayer Flamsteed lists. They are not all the same and cover a wide range of temperatures.
The Cygni star does not have a specific color since it refers to a group of different stars in the Cygnus constellation. Stars have different colors based on their temperature, so they can range from blue to red to yellow.
what is the color of procyon,cygni,deneb,aldebaran stars
Which one - there are hundreds of stars in the Cygnus constellation
NML Cygni, also known as V354 Cygni, is a red supergiant star located in the constellation Cygnus. Its effective temperature is approximately 3,200 to 3,600 Kelvin. This relatively low temperature contributes to its reddish appearance, characteristic of cooler stars.
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.
61 Cygni is a binary star system in the constellation Cygnus.Both stars have a spectral type of K, which means there temperature is around4,500 K. This is cool for a star.See related question for the hottest star.
the color of stars with the lowest surface temperature is red
The Color of stars depends upon their surface temperature.
The color of a star reveals its temperature. Blue stars are hotter than red stars, with temperatures ranging from about 10,000 K to 40,000 K and higher for the most massive stars.
It's color.
The temperature determines the color of the star!:)