F-type stars are a category of stars that are hotter and brighter than our Sun, classified by their surface temperatures ranging from about 6,000 to 7,600 degrees Celsius. They typically have a yellow-white hue and are known for their strong hydrogen absorption lines in their spectra. These stars are often larger than G-type stars like the Sun, with masses between 1.0 and 1.5 times that of the Sun. F-type stars have a shorter lifespan, usually lasting around 2 to 3 billion years before evolving into red giants as they exhaust their nuclear fuel.