Next week is the last section!

• Homework 6 is due next week in section

• Planet Walk “Extra credit” assignment is due by 12:10 next Friday (Slope Day) – but it’s optional

• We can go over the last week of lectures

OR

• You can ask me any astronomy and planetary science questions you have

Solar System formation

• Cloud of interstellar gas/dust

• Protostar + disk

• Planetary embryos, planetesimals

• “Heavy Bombardment”/ “Late Heavy Bombardment”

• Planets, asteroid belt, Kuiper Belt, Oort Cloud

Image from http://www.astro.psu.edu/users/niel/astro1/slideshows/class43/slides-43.html

The Nice (“Neese”) Model

Movie from http://www.skyandtelescope.com/skytel/beyondthepage/8594717.html (doesn’t play in PowerPoint)

Hunting planets

• Radial velocity (Doppler shifts)

Radial Velocity

Animation from http://www.astro.sunysb.edu/mzingale/software/astro/

Radial Velocity: elliptical orbits

Animation from http://www.astro.sunysb.edu/mzingale/software/astro/

Hunting planets

• Radial velocity (Doppler shifts)

• Astrometry

• Transits

Transiting planets

Image from http://www.nasa.gov/mission_pages/kepler/multimedia/images/aas_conference.html

Hunting planets

• Radial velocity (Doppler shifts)

• Astrometry

• Transits

• Direct detection

Fomalhaut b: A directly imaged planet?

Image from http://www.princeton.edu/~willman/planetary_systems/Fomalhaut/

The Sun

Images from http://www.daviddarling.info/encyclopedia/C/convective_envelope.html