10.24.07 Astronomy notes

10.24.07 Astronomy notes - 10.24.26.2007 Astronomy...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
10.24.26.2007 – Astronomy Planetesimals were kicked out of solar system by Jovian planets (gravitational assist) Sometimes they are kicked out to great distances – create the Oort cloud Comets formed in outer solar system – most of water on earth brought by comets Silicon, Iron, Magnesium, Aluminum + Oxygen (Rocks) Too hot for gases no gas giants Too hot for water to accrete Asteroid Belt (between mars and Jupiter): a planet was forming there, but interrupted by Jupiter. Ceres = dwarf planet, largest object in belt. Kuiper Belt: - Inside of Neptune’s orbit, objects were thrown out into the Oort cloud - Outside of Neptune’s orbit, objects remain and become part of Kuiper Belt Protosun becomes sun - Nuclear burning begins - Radiation and gas pressure - Removed most all gas and dust in the nebula - Accretion ends (of small particles – gas and dust) - Whole process takes about a million years Collisions continue – almost every planet shows evidence of a major impact
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

10.24.07 Astronomy notes - 10.24.26.2007 Astronomy...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online