Well its a 2 fold answer really. Firstly the gases that form a star take millions if not billions of years to come together. However when a Protostar is formed, this is not a true star as it produces heat via friction not fusion; once this starts to occur it only take about 100,000 years to go from Protostar to Star.
Once the gases start to coalesce and produce heat and light from friction, rather fusion (This is called a Proto-Star). That generally lasts about 150,000 years then nuclear fusion starts and a true star is formed.
10 years.
As long as they want
Polaris (North Star) is about 433 light years from us, so that is how long light will take to reach us.
If you counted 1 number per second, it would take 5700 years to count all 180 billion star systems in the Star Wars galaxy.
12 years but episode 1 and 5 took only 7 years
2 years
it depends on what type of star it is bigger stars run out of fuel hydrogen faster then smaller stars
They produce fruit, they just take years to do it.
Counting one star per second, it would take approximately 12,680 years to count all 400 billion stars in the Star Wars galaxy.
two years the most
5 years