The final is one week from yesterday Same format as prelims, but longer 7-9:30pm, Wednesday night, in Baker Lab Bring #2 pencils, erasers, etc. Please consider donating your textbook Thanks for a great semester! Always feel free to (or visit) me with any astronomy or planetary science questions
You should review: Lecture notes Textbook (assigned reading) Homework Prelims Practice prelims Review sessions: Mon, Tues, 2-3:30, SSB 105
Yes, there is a lecture on Friday Prof. Squyres talking about life in the Universe Last chance to hand in Planet Walk extra credit assignment Also, it’s a scheduled day of class
Primordial Soup Julia Child video: primordial-soup/ primordial-soup/
Extremophiles Yellowstone: Cyanidium lives in water with pH 2-3 Images from Salt crystal: Halobacteria in brine inclusions (red stuff is bacteria!) S. African gold mine: Bacillus infernus lives inside rocks 3km underground
Tardigrades! Image from
Part 1: General concepts about the Solar System Celestial Sphere Sidereal vs. synodic days Seasons Phases of the Moon Tides Kepler’s laws Spectra Eclipses
Part 2: The inner Solar System Mercury, Venus, Earth, the Moon, Mars Interiors (including seismology) Surfaces (impacts, volcanism, tectonics, erosion) Atmospheres (including compositions) Climate and climate change (Earth and Mars) The Greenhouse Effect
Part 3: Small bodies and the outer Solar System Jupiter, Saturn, Uranus, Neptune (sizes, similarities, differences, interiors, atmospheres) Asteroids, comets, meteorites Pluto and the trans-Neptunian region Jovian satellites (including the Galilean satellites) Ice giants vs. gas giants Impacts Rings Resonance and tidal heating
Part 4: Origins Solar system formation Planet formation The Sun Exoplanets Exobiology Life in the Universe
The Celestial Sphere
Image from Sidereal vs. Synodic
Seasons Image from
Phases of the Moon
Tides II Image from
Spectroscopy Images from Energy level diagram Types of Spectra
Blackbody Radiation Image from
Solar Eclipses Image from
Lunar Eclipses Image from
Surface Processes Erosion Tectonics Volcanism Impacts Images from and
Earth’s interior, cont. P waveS wave
The Greenhouse Effect
Earth’s atmosphere Gas NameChemical FormulaPercent Volume NitrogenN278.08% OxygenO220.95% *WaterH2O0 to 4% ArgonAr0.93% *Carbon DioxideCO % NeonNe0.0018% HeliumHe0.0005% *MethaneCH % HydrogenH % *Nitrous OxideN2O % *OzoneO % * variable gases From
Origin of the Moon Sisters? Fission? Capture? Giant impact
Mercury’s day and year 3 days every 2 years Animations…. – Rotation and orbit: – The Sun in the sky:
Venus Images from and VisibleUV Radar
Plate tectonics Image from
Earth’s magnetic field and plate tectonics Image modified from
Radar imaging Images from and Dark is smooth Rough is bright
Terrestrial planet interiors Image from
Gas giants and ice giants JupiterSaturnUranusNeptune Semimajor axis (AU) Temperature125 K95 K60 K Radius (R Earth ) Density (g/cm 3 ) Spin Period (hrs)~ 10 ~17~ 16 Atm. Comp. (%) H He methane x x to 1?
Giant Planet Interiors Image from
Giant Planet Atmospheres Image from
Kuiper Belt vs. Oort Cloud
Dwarf planets are small
The Galilean moons From
Europa, Ganymede and Callisto Image from
Io’s tidal heating Images from Elliptical orbit caused by orbital resonance Synchronous rotation
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
Hunting planets Radial velocity (Doppler shifts) Astrometry Transits Direct detection
The Sun Images from