Let's say that the Earth is right in the middle of the liquid water Habitable Zone around our sun. Imagine that you find a planet in the middle of the Habitable Zone of a small, nearby star. The star has a mass of 1/2 that of the sun, a radius 1/2 that of the sun, and a temperature of 3000 K (you can assume that the sun is 6000 K). What would be the orbital period of this Earth-twin? (Hint - this problem has several steps, and requires Kepler's 3rd law for the last step).
Stellar evolution
We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.
Red Shift
It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.
Please help me with this question. A=.2
Step by step
Solved in 3 steps
