F Type stars are main sequence stars that means they are converting hydrogen into helium or carbon. Once they have converted all the hydrogen, they then start converting the helium and carbon onto the next step. After the main sequence, the outward pressures will be stronger than inward pressures and the star will begin to grow.
F Type stars are the next hottest group of stars up from the G Type stars of which our Sun is a classed as . A F-Type star temperatures ranges from about 6,000 to 7,000 Kelvin, this compares to the Sun's temperature of about 5,778 Kelvin.
In addition to hotter temperatures, they are about 1 to 1.4 times more massive than our own star. Mass isn't the size but how much the star would weigh if you were able to. As a star is slightly bigger than the Sun, its lifespan would not be as long as the Sun. The more massive a star is, the more uneconomical it is with its fuel and the shorter the lifespan would be. The star would still have a lifespan measured in billions of years but not be as long as that of the Sun which has an estimated 10 billion year life span of which it is half way through.
The more massive a star is, the less of them there are around. For example, the most common type of star in the cosmos are M-Type red dwarf stars which include Proxima Centauri. M-Type stars are more prevalent than G-Type stars and so on and so forth.
The below list comes from Schools Observatory to show the frequency of different types of stars.
Planets have been found orbiting round some F-Type stars but there is no sign yet of whether any of these stars has life. In fact, we have not discovered life around any particular star in the galaxy as yet. For life to exist on a planet orbiting a F-Type star, the planet would need to be at a greater distance from the star than Earth is to the Sun,the planet would need to be at least 2.0 to 3.7 A.U. A.U. is the distance from the Sun to the Earth. Space
F-Type stars are probably the hottest types of stars that life could exist around. Star that are hotter than F-Types are Blue stars such as Sirius and Rigel. Increased radiation from F-Type stars are one limiting factor as to why life couldn't exist around those stars. Radiation from those planets would be higher because the stars are more massive and hotter. Although we think of life as like that being on Earth, life on these F-Type planets might have learned how to adapt. Science Daily
One of the most famous stars in the night sky is a F-Type star. It is also one of the most important as it that star that many travellers in years gone by use to navigate. The star is directly above the north pole so identifying the star can help travellers know where they are going. As its the northern most star, people in the southern hemisphere will not be able to see it. They would have to use a different star and constellation to follow.
Polaris is what's called a multiple star system and there's not much chance of a planet being in orbit. There have been planets discovered in binary star systems such as Algieba. All the stars in the system are F type stars of varying sizes.
Titawin also known as Upsilon Andromedae in the Andromeda constellation is an example of a F-Type star that has a planet in orbit round. It is a star that can be seen using the naked eye but to really see it you will need a visual aid of some sort.
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