All stars have different temperatures, depending on their mass and period in their life cycle. The hotter a star is, the brighter it will appear.
The stellar classification [See link] in order of...
well, stars are balls of gas (hydrogen) which fuses into helium. is also how how the sun produces energy but stars can reach a temp. of 20,000 if purple if it is blue probley 10,000
A red star can be 2,600-3,850 degrees C.
A red-orange star can be 4,000-5,250 degrees C.
A yellow star can be 5,500-6,000 K degrees C.
A white-yellow star can be 6,000-7,200 degrees C.