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  1. Where is this?

  2. ASTRONOMY 8850:PlanetarySciences Why Sciences?

  3. How to do well inPlanetarySciences 1. show up to class … on time 2. participate in class 3. get/borrow the book Planetary Sciences by de Pater and Lissauer 4. find course website: www.astro.gsu.edu/~thenry/PLANETS 5. find Icarus online 6. do homework --- Solar System Explorers, quiz preparation, etc. 7. choose 3 planetary topic(s) you are most interested in - start EARLY DUE TUESDAY, 28 AUG 8. NAIL THE SEMESTER PROJECT

  4. Grades inPlanetarySciences class participation 10% Solar System Explorers 10% paper Levels 0/1/2/3 20% presentation 20% referee reports (3 colleagues) 20% referee report (Henry) 20%

  5. Solar System Explorers 01 Find Icarus online. Choose an article relevant to one of your 3 topics. Print out the first page of the article. Turn in single page at the beginning of class DUE TUESDAY, 28 AUG Get 5 points in Solar System Explorers.

  6. stars planets moons ring systems minor planets Centaurs Trans-Neptunian Objects comets dust 1 8 172a (JPL 2018 AUG 20) 4 (+1?) 785,048 (JPL 2018 AUG 20) 432 (JPL 2018 AUG 20) 2,559 (JPL 2018 AUG 20) 3,535b (JPL 2018 AUG 20) some a add 5 for Pluto b any type Solar System Inventory

  7. Nomenclature • terrestrials • Mercury, Venus, Earth, Mars • many moons • jovians • gas giants • Jupiter, Saturn • ice giants • Uranus, Neptune • minor planets • asteroids • Main Belt • Near-Earth Objects (NEOs) • Trojans (and Greeks and Hildas) • Trans-Neptunian Objects (TNOs) • Plutinos (Classical) Kuiper Belt Objects (KBOs) • Centaurs Scattered Disk Objects (SDOs) • comets • Jupiter-family, Chiron-type, Halley-type …

  8. Solar Family How are they different?

  9. Jovians and Terrestrials

  10. Planet Spacing

  11. Planet Orbits Planetary Sciences

  12. The 7 Moons (+ interlopers) X X X

  13. Terrestrial Planet Surface

  14. Surface Variability

  15. Jovian Planet “Surface”

  16. …we can land/work on surfaces Planetary Sciences

  17. Possible Projects hot topics Messenger results Spirit/Opportunity/Curiosity results (2004-present) Dawn results Cassini results outstanding objects Jovian moons edge of the Solar System (KBOs/SDOs) comet chemistry planet formation the “Nice Model” disks and timescales in Solar System formation exoplanet statistics life in the Solar System organisms on Mars human mission to Mars humans in space database project … INDEPENDENT AND NEW

  18. …………………………