astr 1120 general astronomy: outline of todayÕs class ... · astr 1120 general astronomy: stars...

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ASTR 1120 General Astronomy: Stars & Galaxies Prof. Rosalba Perna TA: Thomas Rogers TTh 11:00-12:15, Duane G1B30 Outline of Today’s Class Course goals Course overview • Course information Why Are You Taking This Course?? A. Just because I need to satisfy my science core requirement (no particular interest) B. Because of A. + my fascination with the Universe C. I have satisfied my core requirements. I am taking this course just out of interest D. Other reasons

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Page 1: ASTR 1120 General Astronomy: Outline of TodayÕs Class ... · ASTR 1120 General Astronomy: Stars & Galaxies Prof. Rosalba Perna TA: Thomas Rogers TTh 11:00-12:15, Duane G1B30 Outline

ASTR 1120

General Astronomy:

Stars & Galaxies

Prof. Rosalba Perna

TA: Thomas Rogers

TTh 11:00-12:15, Duane G1B30

Outline of Today’s Class

• Course goals

• Course overview

• Courseinformation

Why Are You Taking ThisCourse??

A. Just because I need to satisfy my sciencecore requirement (no particular interest)

B. Because of A. + my fascination with theUniverse

C. I have satisfied my core requirements. I amtaking this course just out of interest

D. Other reasons

Page 2: ASTR 1120 General Astronomy: Outline of TodayÕs Class ... · ASTR 1120 General Astronomy: Stars & Galaxies Prof. Rosalba Perna TA: Thomas Rogers TTh 11:00-12:15, Duane G1B30 Outline

To develop a broad view ofwhat we know about theUniverse

To understand the forcesthat shape the Universeand its history

To help you understandhow we figured all this out

To learn how science works

Course Goals Course Overview:What we shall study• What is our place in the Universe?

Light (ElectromagneticRadiation)

• What is light?

• How do we use it tofind out what andwhere things are?

• Waves vs particles

Telescopes (Tools of the Trade)

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Our Nearest Star : The Sun

Star in middleof its life

STARS ofvery manysizes and

colors

Evolution path andcolor / brightness dependssensitively on MASS

STELLAR Birth and Life STAR DEATH: white dwarfs,neutron stars and black holes

Page 4: ASTR 1120 General Astronomy: Outline of TodayÕs Class ... · ASTR 1120 General Astronomy: Stars & Galaxies Prof. Rosalba Perna TA: Thomas Rogers TTh 11:00-12:15, Duane G1B30 Outline

OUR GALAXY: The Milky Way

200+ billion stars in the Milky Way

Exploring a Universe ofGALAXIES

Billion+ galaxies!

GALACTIC evolution

Galaxy collisions, quasars

Dark matter, dark energyand fate of universe

Page 5: ASTR 1120 General Astronomy: Outline of TodayÕs Class ... · ASTR 1120 General Astronomy: Stars & Galaxies Prof. Rosalba Perna TA: Thomas Rogers TTh 11:00-12:15, Duane G1B30 Outline

Big Bang: The Beginning What is this course NOT?

Astrology ! Astronomy

Who should take this course?

• No prerequisites, aimedat non-science majors

• No lab credit

• Moderate amounts ofquantitative work(algebra)

• More quantitative course– ASTR 1040

Prior astro course?

Course InformationCOURSE WEB PAGE:http://amalfi.colorado.edu/~rosalba/astro1120/astro1120.html

You can findannouncements, readingassignments, syllabus,lecture notes and otheruseful things there

Grades will be posted onCULearn

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Required TextThe Cosmic Perspectiveby Bennett et al., 5th edition

Includes:Access to textbook websitewww.masteringastronomy.com,Ebook (animations, etc), andSkyGazer planetarium software.

You will need your own`masteringastronomy’ account!Homeworks require it

Course ID: ASTR11202009A

More on• Based off of the most widely adopted

physics homework and tutorial system,MasteringPhysics

• Uses a tutorial method in which you areguided to the solution of a multi-stepproblem– Wrong-answer feedback– On-demand hints

• Homework takes more time but is worth it!

– Studies have shown this system can increaseyour grade 5-7% (nearly a whole letter grade!!)

How do you learn best?

A. Listening to lecturesB. Reading the textbookC. Doing HomeworkD. Discussing with

friends/classmatesE. All of the above

How do you learn best?

A. Listening to lecturesB. Reading the textbookC. Doing HomeworkD. Discussing with

friends/classmatesE. All of the above

Page 7: ASTR 1120 General Astronomy: Outline of TodayÕs Class ... · ASTR 1120 General Astronomy: Stars & Galaxies Prof. Rosalba Perna TA: Thomas Rogers TTh 11:00-12:15, Duane G1B30 Outline

How many hours per week(outside of lecture) should youneed to work to get an A in this

course?A. <2 hoursB. 2-4 hoursC. 4-6 hoursD. 6-9 hoursE. 9+ hours

How many hours per week(outside of lecture) should youneed to work to get an A in this

course?A. <2 hoursB. 2-4 hoursC. 4-6 hoursD. 6-9 hoursA. 9+ hours

GRADING

3 in-class midterms (m/c and short essay) : 3 x 20% (lowest score dropped - tot=40%)Homework assignments (online from MA): 20%(lowest score dropped)Final exam: 30%Clickers: 10% (Drop 4 lowest scored days)Extra Credit Observatory Nights: 3% (max)

No make-up midterm dates!

READ ALL THE INFO ON THE COURSE WEBPAGE

Clickers• Required-- bring to each class!• Register your clicker to your name• Used for reading quizzes, in-class discussion

questions, feedback - favors peer learning• Write your name on a piece of tape on the back of

your clicker!

Page 8: ASTR 1120 General Astronomy: Outline of TodayÕs Class ... · ASTR 1120 General Astronomy: Stars & Galaxies Prof. Rosalba Perna TA: Thomas Rogers TTh 11:00-12:15, Duane G1B30 Outline

More on clickers• Credit starts next week

• Graded 2 pts for correctanswer, 1pt for wrong answer,

0 pts for no answer

• Your grades available onlineweekly

• 4 “free clicker” days

• Buy and register beforeFriday! If you’re using an oldclicker, change the batteriesNOW!

Important classroom policies

• Working together on homework is encouraged,BUT:

Your answers must reflect your work only

• Do not disturb the class by talking with your neighbors, unless class discussion is invited

• Using another person’s clicker is cheating

• Students are expected to follow the CU Honor Code andbehave with courtesy to the instructors and theirclassmates

How to succeed in thiscourse

• PUT IN THE TIME: 3 credits at CU = 6-9

hours outside of theclassroom

• Read the textbooksections assigned inclass

• Class attendancestrongly recommended!

FEEDBACK APPRECIATED (AND ENCOURAGED!)

Come talk with us• Prof. Rosalba Perna’s office hours: Tue: 1pm-2pm; Th: 1pm-3pm in

JILA Tower 506A (phone: 303-492-0389) [email protected]

• TA Thomas Rogers office hours: Wed, Fri: 2pm-3:30pm in Duane D1B31 (phone: 720-308-9382).

[email protected]

• Or call or email (any of us) tomake an appointment!

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Planetarium sessions

• Two class meetings willbe at FiskePlanetarium on campus.

• Please do not arrivelate.– Doors will be closed 5

minutes after starttime and you will not beadmitted

Observatory Nights• Starting September 2nd at

8:30pm, then about every2! weeks

• Sommers-BauschObservatory (next toFiske): 16” and 18”telescopes

• Not mandatory, but you canget extra credit towardsyour grade (Fill outsummary sheet fromcourse website)

• Signup required on CULearnwebsite

(Students = $5, FREE on Thursdays)

• Upcoming: “Birth of Stars” by prof. John Bally on Sept. 24

http://fiske.colorado.edu

Public Talks

Welcome to a discovery of theUniverse!

“Not everything that can be counted counts, and not everythingthat counts can be counted”

- Albert Einstein

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For next class, read:• How to succeed in your astronomy course, p. xxiv• Chapter 1, all (Our Place in Universe)

– Review Basic Astronomical terms, p. 6• Chap 3, sec 3.4 & 3.5 (Nature of Science, Astrology)

And by next Tuesday:• Register for MasteringAstronomy (see course

website. Course ID: ASTR11202009A)– complete Introduction Tutorial (not graded)

• Register your iclicker withhttp://iclicker.com/registration

• You can download a copy of each class’ slides on the class website (available before each class).