Welcome Astronomy 315 Professor Lee Carkner Lecture 1

Questions to Consider  Am I in the right place?  Astronomy 315: Stars, Nebulae and Galaxies  Do I have the right stuff?  “Astronomy Today”, Chaisson and McMillan (4 th Edition)  Star and Planet Locator  Calculator  WebAssign card

Things to Know  Professor  Dr. Lee Carkner  Office Hours  M W F 1-2 pm  Science 208  Places  We will normally meet in Science 102  Some classes we will meet in the planetarium (like this Friday)  We will have evening observing sessions in the observatory

How Does the Class Work?  Read the book material before class  Do the online homework via WebAssign  Come to class  Do the in-class activities  Go out and make the assigned observations and turn them in by the due date  Come to the observing sessions when announced  Three quizzes and a final

Web Page  intro.html  Outline gives readings and lecture topics  Lectures posted online before class  Download and print out before class  Fill in blank areas during class  Outline will be updated and modified as the class goes on  Web page will also list observing sessions

WebAssign  Homework is due every class day  Go to webassign.net/student.html  Click on student login  Username: firstnamelastname  e.g. johnsmith  Institution: augustana  Password: Your Augustana ID number  You can change the password after you login  If you have used webassign before you may still have our old password  You will have to register using a WebAssign card purchased at the Runestone bookstore

WebAssign Homework  Once logged in you will see a list of assignments  Click on the current assignment  For Wednesday it is “2historyoftheuniverse”  Be sure you have done the reading first  Answer all questions and click “submit”  You only get one submission so be sure you are ready to answer all questions before you start

Grading  Three Quizzes -- 45% (15% each)  Observing -- 10%  In Class Activities -- 15%  Homework – 10%  Final -- 20%

Guidelines for Work Handed In  Written answers must be in complete sentences  Numbers must have units  Answers must reasonable  If not reasonable, explain why  All work must be neat and easily readable  Explain all work!

Survey  Please fill out the front page with information about your background  Answer the questions as best you can on the back page  Survey is optional  But please put your name on it for attendance  Information will be used to help improve the course

Why is Astronomy Unique?  How is astronomy different from all other sciences?  Astronomy is almost entirely observational  Very few hands-on experiments you can do  Exceptions: meteors, probes to other planets  Everything we know about the universe outside the solar system comes from observation  Observation forms the foundation for astronomy

Observing  How does the Observing Project work?  Make several copies of the blank observing forms  Go outside on a clear night and sketch and label the required constellations  Answer the questions on a separate sheet  Come to the observing sessions and sketch the objects through the telescope  This class requires you to do work at night both on your own and in groups at the times announced in class!!

How to Observe  Face a cardinal point (N, S, E, W)  The semi-circle represents the half of the celestial dome in front of you  Draw each star as a dot  Size proportional to brightness  Draw to scale  Label and include comments!  For telescope views, draw what is in the eyepiece

Observing Tips  Take advantage of clear nights  Use resources to help find things  Star and Planet Locator  Sky maps in back of book  planetarium software  Make many copies of observing form and do a first “practice” sketch  Draw only what you can see  Do not cheat!

Next Time  Read Chapter  Do WebAssign homework  Observe if clear!