How determine surface temperature of a star?

Write a short note on any two constellations.? Did people really go to the moon? Does time become earlier or later when you move east to west? Why it is night and day in different countries at different times? How many countries work together to create the ISS? Is Jupiter the largest planet? In the story who's there why does the narrator refer to his spacecraft as very exclusive? Can your skin get sun-bleached? What is the largest plant in your solor system? What is the balance of forces that keeps a star from collapsing called? When was the lava lamp invented? Can you see the space shuttle launch from Miami? What is the first man made satellite put into space? Who was with uri gagarin on April 13 1916? How do astronauts and satellites stay in orbit when gravity pulls it down? How is the night sky and day sky different and alike? Why did America win the space race? How long would it take you to get to the sun at 1500 miles per hour? Is it possible to fly to the moon and back? Is a cloud a type of condensation?

How determine surface temperature of a star?