1 Astronomy 1210 – circa 2012 Astronomy 1210 Course Particulars NOT Your Grandma's Solar System ● ● Course Home Page http://www.astro.virginia.edu/class/skrutskie/astr121/ – Three in-class exams – 55% + Final 25% – Two Labs (Telescope Observing + Your option) - 10% – In-class “wildcards” - 10% Textbook: Cosmic Perspective (6th or 5th) edition – ● NO clickers, No supplementary material, just the text Exam results and basic course information (and some assignments) will appear on Collab 2 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System PPT HTML Lecture Notes, Web Readings, Lectures Cosmic Perspective – The Textbook Exam Content 3 Astronomy 1210 – circa 2012 At the End of the Semester... NOT Your Grandma's Solar System ● ● ● A fairly broad and extensive knowledge of the planets and moons in the solar system and how a perspective on all of these objects leads to appreciation for the prospects of life elsewhere in the Solar System and in the Galaxy. An ability to keep current – on your own – with events going on in the night sky, long after this course has ended. “Keep looking up....” An ability to track the progress of and results from the vast investment in space exploration that we make as a society and appreciate why these investments are more important than just pretty pictures. 4 Astronomy 1210 – circa 2012 At the End of the Semester... NOT Your Grandma's Solar System ● ● ● A fairly broad and extensive knowledge of the planets and moons in the solar system and how a perspective on all of these objects leads to appreciation for the prospects of life elsewhere in the Solar System and in the Galaxy. An appreciation for how the night sky “works” and an ability to keep current – on your own – with events going on in the night sky long after this course has ended. “Keep looking up....” An ability to track the progress of and results from the vast investment in space exploration that we make as a society and appreciate why these investments are more important than just pretty pictures. 5 Astronomy 1210 – circa 2012 At the End of the Semester... NOT Your Grandma's Solar System ● ● ● A fairly broad and extensive knowledge of the planets and moons in the solar system and how a perspective on all of these objects leads to appreciation for the prospects of life elsewhere in the Solar System and in the Galaxy. An appreciation for how the night sky “works” and an ability to keep current – on your own – with events going on in the night sky long after this course has ended. “Keep looking up....” An ability to track the progress of and results from the vast investment in space exploration that we make as a society and appreciate why these investments are more important than just pretty pictures and scientific results. 6 Astronomy 1210 – circa 2012 A Brief Warning NOT Your Grandma's Solar System ● Yes, this course is a 1000-level “introductory” course, however... – The “1000” is an indicator that the course has no prerequisites, not that it is “easy” – The information content is dense – Astronomy is simply applied physics – be prepared for some math and conceptual physics. 7 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System 1972 8 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System Mercury 9 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System After a 7-year journey MESSENGER dropped into orbit on March 18, 2011! 10 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System 11 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System 12 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System 13 Astronomy 1210 – circa 2012 Astronomy 121 circa 2006 NOT NotYour YourGrandma's Grandma'sSolar SolarSystem System 14 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System Saturn Cassini Spacecraft Orbital Insertion: June 2004 15 Astronomy 1210 – circa 2012 Astronomy 121 circa 2006 NOT NotYour YourGrandma's Grandma'sSolar SolarSystem System 16 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System 17 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System 18 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System Asteroids and Comets 19 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System 20 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System 21 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System 22 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System Pluto – planet no more... New Horizons Page 23 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System 1972 24 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System 25 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System 26 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System ca. 1990 27 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System ● In the past year... – The Dawn spacecraft dropped into orbit around the asteroid Vesta for a year-long exploration 28 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System 29 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System In the past year... ● The Juno mission was launched on its way to orbit Jupiter ● Mars Science Lab was launched and is on its way to Mars ● GRAIL (a lunar gravity mission) launched and just arrived in lunar orbit. 30 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System In the past year... ● The Juno mission was launched on its way to orbit Jupiter ● Mars Science Lab was launched and is on its way to Mars ● GRAIL (a lunar gravity mission) launched and just arrived in lunar orbit. 31 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System In the past year... ● The Juno mission was launched on its way to orbit Jupiter ● Mars Science Lab was launched and is on its way to Mars ● GRAIL (a lunar gravity mission) launched and just arrived in lunar orbit. 32 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System 1972 33 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System ● A new perspective on prospects for life elsewhere – Life is more tolerant of extreme environments than previously thought. – DNA analysis suggests life likely originated in volcanic vents. – Life's prerequisites (especially liquid water) are more prevalent in solar systems. – Planets share material. Impacts can transport life naturally from one world to another increasing the odds of survival. 34 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System ● A new perspective on prospects for life elsewhere – Life is more tolerant of extreme environments than previously thought. – DNA analysis suggests life likely originated in volcanic vents. – Life's prerequisites (especially liquid water) are more prevalent in solar systems. – Planets share material. Impacts can transport life naturally from one world to another increasing the odds of survival. 35 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System ● A new perspective on prospects for life elsewhere – Life is more tolerant of extreme environments than previously thought. – DNA analysis suggests life likely originated in volcanic vents. – Life's prerequisites (especially liquid water) are more prevalent in solar systems. – Planets share material. Impacts can transport life naturally from one world to another increasing the odds of survival. 36 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System ● A new perspective on prospects for life elsewhere – Life is more tolerant of extreme environments than previously thought. – DNA analysis suggests life likely originated in volcanic vents. – Life's prerequisites (especially liquid water) are more prevalent in solar systems. – Planets share material. Impacts can transport life naturally from one world to another increasing the odds of survival. 37 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System ● Hundreds of planets have been found around other stars. – It took until 1995 to find the first one. http://www.planetary.org/blog/ 38 Astronomy 1210 – circa 2012 NOT Your Grandma's Solar System ● Hundreds of planets have been found around other stars. – It took until 1995 to find the first one. The techniques applied to date find “big” planets, but today we are finding earth-sized planets and developing the technology to determine if they are earth-like.