Parts manufactured for use on aircraft do face much tougher guidelines on design, construction, and quality control than those used in most industrial applications. A typical hydraulic pump used on an aircraft may cost between $4,000 and $25,000, compared with a comparable industrial pump's cost of $400 or less.
The temperature at the surface of the Sun is about 10,000 Fahrenheit (5,600 Celsius). The temperature rises from the surface of the Sun inward towards the very hot center of the Sun where it reaches about 27,000,000 Fahrenheit (15,000,000 Celsius).
Sun spots are actually cool spots on the surface of the sun that are associated with large magnetic fields. The surface of the sun has a temperature of 5800 Kelvin (what is that in Celsius or Fahrenheit?). A sunspot is typically 1600 Kevlin cooler. Sun spots are about 4000 Kelvin or over 7000 degrees Celsius.