we can easily identify constellation of stars.Constellation is a group of stars that appear to form some recognisable pattern or shape in the sky.some examples of constellation stars are Ursa majors,ursa minor,orion,cassiopeia.
Cassiopeia has a group of 5 stars, shaped as a W. Greek mythology says that Cassiopeia was a vain queen, consort to Cepheus in Ethiopia. Ultimately, Poseidon threw them both into the stars, her upside down because of her vanity.
There are more than five stars in Cassiopeia but the major ones are as follows from the left of the 'W' / 'M': Caph, Beta Cassiopeia Shedar, Alpha Cassiopeia Cih, Gamma Cassiopeia Ruchbah, Delta Cassiopeia Sagin, Epsilon Cassiopeia
Cassiopeia contains all kinds of stars, some close to us, some far off. They are all grouped in an area of the sky when seen from Earth, but seen from somewhere else they could look quite different and they might not be grouped together. So every constellation contains all sorts of stars.