Planetesimal Hypothesis PDF

Planetesimal Hypothesis Proposed by Thomas Chamberlin and Forest Moulton in 1895. According to this hypothesis, the Solar System's planets were thought to have formed from a collision between the Sun and another star.  Planetesimal Hypothesis Chamberlin–Moulton stated that the Solar Syst...

Planetesimal Hypothesis Proposed by Thomas Chamberlin and Forest Moulton in 1895. According to this hypothesis, the Solar System's planets were thought to have formed from a collision between the Sun and another star.  Planetesimal Hypothesis Chamberlin–Moulton stated that the Solar System's planets had formed as a result of a collision between the Sun and another star. In this scenario, the gravity of the passing star shredded a series of bolts from the solar surface. Bolts ejected from the Sun's near side were thrown out to distances comparable to those of the big planets, while those ejected from the Sun's far side are ejected less forcefully to distances comparable to those of the terrestrial planets.  Planetesimal Hypothesis The planets' original cores were produced from the inner leftovers of these bolts. The outer parts expanded and cooled into a massive swarm of solid particles that strewn across a disc moving around the Sun in a plane specified by the passing star's speed. The cores gradually developed into planets by accumulating in planetesimals, with the majority of the expansion taking place in the Solar System's outer parts, where the material was more abundant. Hot gas in the smaller bolts is presumed to have condensed rapidly into liquid and then cooled to solid particles, called Planetesimals.  Planetesimal Hypothesis Objections 1. This theory failed to explain the massive passing star, which must remain in close proximity to the Sun. 2.The alignment of one star with the Sun appears to be incorrect. The stars in space are so far apart, that moving from one to the next is impossible. 3. It was not able to explain why only nine planets formed. Also, this hypothesis was not able to explain the different dimensions of planets.