Question

If an Earth-like planet orbits its sun-like star at a distance of 4AU, what is its orbital period (in Earth years)? Show your work.

Answer 1

Answer:

Astronomers may have discovered an Earth-like exoplanet orbiting a Sun-like star, a little over 3,000 light-years away. The planet named 'Planet KOI-456.04', the unconfirmed exoplanet is thought to be similar to Earth for several reasons. It is said to have a similar distance between its sun - Kepler-160 - with an orbit that takes it 378 days to complete. It also thought to receive 93 percent as much light as Earth gets from the Sun. That when combined with the fact Kepler-160 is thought to be very similar to our own sun in terms of mass and radius, leads scientists to believe they may have found an Earth-like planet in the solar vicinity that has the potential to sustain life.

Most exoplanet discoveries thus far have