rank the four hypothetical planets described below in order from most likely to support life to least likely to support life. assume the planets are all approximately the same size as earth. planet 1: orbits a star of spectral type b (approximately 10 solar masses) in a circular orbit within the habitable zone planet 2: orbits a sun-like star in a circular orbit at a distance twice earth's orbital distance from the sun planet 3: orbits a star with a luminosity one-quarter the sun's luminosity in a circular orbit at a distance one-half earth's orbital distance from the sun planet 4: orbits a sun-like star in an elliptical orbit, with its orbital distance ranging from 1 au to 10 au
