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Astro 001 - Section 4 Prof. Fox. Please find a seat in front (below the separating aisle). Course Materials. Required: Interwrite Personal Response System (PRS) Lecture-Tutorials for Introductory Astronomy , by Prather, Slater, Adams & Brissenden

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Astro 001 - Section 4

Prof. Fox

Please find a seat in front (below the separating aisle)

course materials
Course Materials
  • Required:
    • Interwrite Personal Response System (PRS)
    • Lecture-Tutorials for Introductory Astronomy, by Prather, Slater, Adams & Brissenden
    • Edmund Scientific Sky & Planet Locator (“planisphere”)
  • Recommended and very useful:
    • Astronomy: A Beginner\'s Guide to the Universe by Chaisson & McMillan, Fifth Ed. (includes web access)
    • Discounted “bundles” available at the bookstore
the astronomical universe
The Astronomical Universe
  • What’s up there, and why?
  • Earth’s place in the Solar System… Galaxy… Universe
  • Conceptual focus
  • Scientific mode of thinking and problem-solving
course grading
Course Grading
  • Participation
    • In class (PRS)
    • Online (Angel)
  • 11 Homeworks (Angel)
  • Two Projects
    • Spectroscopy
    • Telescopes
  • Four Exams
    • Three in-class
    • Final
keys to success
Keys to Success
  • Prepare for class
    • Print out lecture notes and/or slides
    • Use these to take notes
  • Attend class
    • Lectures are the basis for exams
    • Participation counts
    • Lots of review – as we go, and preparing for Exams
  • Ask questions
    • During class
    • Office hours & email
  • Prepare for Exams
    • Practice questions (book, web)
    • Participate in the Angel Discussion Forum
course projects
Course Projects

Evenings, Mon-Thu

  • Spectroscopy
    • Open for one week, Feb 4-12
    • Classroom activity + Exploration of downtown
  • Telescopes
    • Open to all from Jan 22 to Feb 14
    • Afterwards: Open according to last names
    • Complete by the end of the period defined by your last name

Rooftop observing

astronomy diagnostic test
Astronomy Diagnostic Test
  • Take this week via Angel
  • 40 minutes, timed
  • Taking the test is part of your grade (Participation)
  • Score does not matter but you must attempt all questions
  • Due by Thursday’s Lecture
  • “Next” to get next question
  • “Submit” only at the very end

This is not a hint!

discussion forums
Discussion Forums
  • Set up on Angel
  • NYT Science Times
    • Discuss astronomy news and features from the New York Times (each Tuesday)
    • Also discussed in-class each Tuesday
  • Exam Review
    • Ask and answer questions about exam material to prepare for tests
  • Points for participation

NYT Science Times

structure of course
STRUCTURE OF COURSE

Visual and Historical Astronomy

structure of course11
STRUCTURE OF COURSE

Visual and Historical Astronomy

Gravity

structure of course15
STRUCTURE OF COURSE

Solar System

Gravity

Light

structure of course17
STRUCTURE OF COURSE

Stars

Solar System

Gravity

Light

structure of course19
STRUCTURE OF COURSE

Milky Way

Stars

Solar System

Gravity

Light

structure of course21
STRUCTURE OF COURSE

Milky Way

Galaxies

Stars

Solar System

Gravity

Light

structure of course23
STRUCTURE OF COURSE

Universe

Galaxies

Stars

Solar System

Gravity

Light

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Life

Universe

Galaxies

Stars

Solar System

Gravity

Light

slide28

The Cosmic Calendar

See also: Southwest stairwell in Davey Lab (begin on Floor 5)

cosmic countdown
Cosmic Countdown
  • The “Cosmic Year” encloses the history of the Universe in a single year
  • 13.7 billion : 1 compression
  • Divides into 31 million “Cosmic Seconds”
  • One “Cosmic Second” corresponds to 442 years
  • Counting backwards, then…
0s 2008 c e
0s: 2008 C.E.

2008 Presidential candidates Hillary Clinton & Barack Obama

1s 1565 c e
1s: 1565 C.E.

Spanish conquest of the Incan Empire, 1541 CE

2s 1123 c e
2s: 1123 C.E.

Norman conquest of 1066 CE – Bayeaux Tapestry

3s 681 c e
3s: 681 C.E.

Birth & Rise of Islam – 632 (red) to 661 (pink) to 750 CE (yellow)

4s 239 c e
4s: 239 C.E.

“Three Kingdoms City” in Wuxi, China, 222-263 CE

Palace of Diocletian, Roman Emperor from 284–305 CE

5s 203 b c e
5s: 203 B.C.E.

Hannibal crossing the Alps in 202 BCE, by Henri Paul Motte

6s 645 b c e
6s: 645 B.C.E.

King Assurbanipal of Assyria founded the world’s first library at Nineveh, ca. 650 BCE

7s 1087 b c e
7s: 1087 B.C.E.

Kings Saul and David (1006–965 BCE) rule over the Israelites

8s 1529 b c e
8s: 1529 B.C.E.

Shang Dynasty (ca. 1600–1046 BCE) artifacts from China

9s 1971 b c e
9s: 1971 B.C.E.

Pharaohs Amenemhet I (1991–1962 BCE; pyramid and tomb) and Senusret I (1971–1976 BCE; bust) of the 12th Dynasty

10s 2413 b c e
10s: 2413 B.C.E.

The Great Pyramid, completed ca. 2560 BCE during the 4th Dynasty

15s 4623 b c e
15s: 4623 B.C.E.
  • First systems of writing and proto-writing
  • First states and cities
  • Dawn of civilization

The Tartaria tablets, ca. 5500 BCE

next year 13 7b years ago
Next year: 13.7b years ago
  • Big Bang!

(We end at the beginning)

(Formation of the Earth in about 4 months)

large numbers
Large Numbers

Any number that you can add 1 billion to without noticing.

  • Age of Universe: 13.7 billion years, or 1017 seconds
  • Neurons in human brain: 100 billion
  • Synapses in human brain: 150 trillion
  • Protons in the Visible Universe: 1054
  • Proton volumes in the Visible Universe: 1089
large numbers44
Large Numbers

Recall:

1054 = 1,000,000,000,000,000,000,

000,000,000,000,000,000,

000,000,000,000,000,000

… and so forth

large numbers45
Large Numbers

Recall:

1054 = 1,000,000,000,000,000,000,

000,000,000,000,000,000,

000,000,001,000,000,000

… and so forth

more large numbers
More Large Numbers
  • Lifetime of M-dwarf star on the main sequence: 1012 years
  • Death of the Milky Way’s last stars: 1014 years
  • Proton decay timescale: More than 1035 years (Super-K)
  • Doubling times during the epoch of Cosmic Inflation: ~1012 (Linde)

Planet orbiting an M-dwarf star

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