Posted by: mrborden | September 16, 2012

Week 3 Our Galaxy


Sept 21 2012
QFD: It is not the size of the dog in the fight, its the size of the fight in the dog – Mr B’s poodle
?FD:Where is our sun located on the HR diagram?
Objective: Students will know and be able to understand:
ESS 2d Students know that stars differ in their life cycles and that visual, radio, and X-ray telescopes may be used to collect data that reveal those differences.


Sept 20 2012
QFD:It is to sleep on things beforehand than lie awake about them afterword – B. Gracian
?Fd: How many spiral arms does the Milky way Galaxy have? what arm are we on?
Objective: Students will know and be able to understand:
ESS 2d Students know that stars differ in their life cycles and that visual, radio, and X-ray telescopes may be used to collect data that reveal those differences.

1) video
2) pictures (Pg 715, 725 and everything on 729 chart on one side)
Due by Friday at the end of the period





Sept 19 2012
QFD:Where talent is a dwarf, self-esteem is a giant – L Petit-Senne
?FD: How many questions will you get right out of 20 on todays quiz?
Objective: Students will know and be able to understand:
ESS 2d Students know that stars differ in their life cycles and that visual, radio, and X-ray telescopes may be used to collect data that reveal those differences.

1) QUIZ
2) Video clip
1 When looking at the Milky Way galaxy through a radio telescope, the Milky Way has at least __________ distinct spiral arms.

A 3
B 9
C 10
D 12

2 Earth is located on the outer edge of the disc–shaped __________ galaxy.
A Orion
B Big Dipper
C Milky Way
D Solar System

3 Where is our solar system located within the Milky Way Galaxy?
A on one of the spiral arms about two thirds away from the center of the galaxy
B at the center of the galaxy
C at the very tip of one of the spiral arms
D by the galactic nucleus

4 Which of the following is found in the center of the Milky Way galaxy?
A the Nuclear bulge
B the Sun
C Earth
D an asteroid belt

5 What is the MOST accurate estimate of the diameter of this galaxy?
A 1,000 light years
B 10,000 light years
C 100,000 light years
D 1,000,000 light years

6 Which of these is the MOST likely location for our Solar System?
A Location 1
B Location 2
C Location 3
D Location 4

7 Differences between the life cycles of stars may be revealed through the collection of data by X-ray __________.
A microscopes
B telescopes
C machines
D crystallography

8 In February of 2010, astronomers reported discovering the largest star in the Milky Way Galaxy. The stage of the star’s life cycle was estimated using __________
A computer models based on our Sun.
B the age of the Milky Way Galaxy.
C samples taken from the star’s core.
D visual, radio, and X–ray telescopes.

9 To study the life cycle of stars more clearly, scientists needed to put telescopes into space. What is the name of the first telescope NASA put into space?

A Huston Space Telescope
B Hutton Space Telescope
C Hudson Space Telescope
D Hubble Space Telescope

10 Astronomers using visual, radio, and X–ray telescopes observe two different stars that vary in size, color, temperature and surface gravity. Because of these differences, the astronomers conclude that __________.

A the stars must be at different stages in their life cycle
B one of the “stars” must actually be a planet, rather than a star
C both stars must be nearing the red giant phase of their life cycle
D the stars must be part of the same two–star, binary solar system

11 What is the earliest stage of a stars life?
a) red giant b) main sequence c) protostar d) white dwarf

12 What is the next stage that the Sun will enter?
a) red giant b) main sequence c) protostar d) white dwarf

13) After a medium size star collapses it becomes a _____________?
a) red giant b) main sequence c) protostar d) white dwarf

14) 90% of all stars are in this category of stars?
a) red giant b) main sequence c) protostar d) white dwarf

15) What is the hottest color of star?
a) red b) blue c) white d) yellow

16) What is the coolest color of a star?
a) red b) blue c) white d) yellow

17) What is the color of our sun?
a) red b) blue c) white d) yellow

18) How will the most massive star in our galaxy end its life (canis major)?
a) black hole b) neutron star c) red super giant d) black dwarf

19) How will a giant star end its life (Rigel)?
a) black hole b) neutron star c) red super giant d) black dwarf

20) How long ago was the Universe formed? Our Solar System?
a) 4.6 BYA/13.7BYA b) 4.5 BYA/13.3 BYA c) 13.7 BYA/4.6BYA
d) 13.3BYA/4.5BYA

EC Describe the word Parallax
Sept 18 2012
QFD:Of all human powers operating on the affairs of mankind, none is greater than that of competition. Henry Clay
?FD:How are black holes formed?
ESS 2d Students know that stars differ in their life cycles and that visual, radio, and X-ray telescopes may be used to collect data that reveal those differences.
Word of the day: Accretion – the clumping of particles and gases to form spheres and discs
1) check vocab
2) finish reading + starnotes
3) video clip if time permits
LOS demonstration
new astrological signs
Sept 17 2012
QFD: Success is a journey not a destination. Arthur Ashe
?FD: What percentage of all stars are in the main sequence on the HR diagram?
Objective: Students will know and be able to understand:
ESS 2d Students know that stars differ in their life cycles and that visual, radio, and X-ray telescopes may be used to collect data that reveal those differences.
Word of the day: Accretion – the clumping of particles and gases to form spheres and discs




0 hypergiants
I supergiants Ia-0 (hypergiants or extremely luminous supergiants (later addition)), Example: Eta Carinae (spectrum-peculiar)
Ia (luminous supergiants), Example: Deneb (spectrum is A2Ia)
Iab (intermediate luminous supergiants) Example: Betelgeuse (spectrum is M2Iab)
Ib (less luminous supergiants)

II bright giants IIa, Example: β Scuti (HD 173764) (spectrum is G4 IIa)
IIab Example: HR 8752 (spectrum is G0Iab:)
IIb, Example: HR 6902 (spectrum is G9 IIb)

III normal giants IIIa, Example: ρ Persei (spectrum is M4 IIIa)
IIIab Example: δ Reticuli (spectrum is M2 IIIab)
IIIb, Example: Pollux (spectrum is K2 IIIb)

IV subgiants IVa, Example: ε Reticuli (spectrum is K1-2 IVa-III)
IVb, Example: HR 672 A (spectrum is G0.5 IVb)

V main sequence stars (dwarfs) Va, Example: AD Leonis (spectrum M4Vae)
Vab[27]
Vb, Example: 85 Pegasi A (spectrum G5 Vb)
“Vz”, Example: LH10 : 3102 (spectrum O7 Vz), located in the Large Magellanic Cloud.[28]

VI subdwarfs. Subdwarfs are generally represented with a prescript of sd or esd (extreme subdwarf) in front of the spectra. sd, Example: SSSPM J1930-4311 (spectrum sdM7)
esd, Example: APMPM J0559-2903 (spectrum esdM7)

VII (uncommon) white dwarfs. White dwarfs are represented with a prescript wD or WD.



Sept 17 2012

QFD: Success is a journey not a destination. Arthur Ashe
?FD: How many stars are in the Milky way Galaxy?
Objective: Students will know and be able to understand:
ESS 2d Students know that stars differ in their life cycles and that visual, radio, and X-ray telescopes may be used to collect data that reveal those differences.
Word of the day: Accretion – the clumping of particles and gases to form spheres and discs
Collect GDL (100 pts)
1) Video Clips
2) Vocabulary
3) Reading/Notes
Define the following words, If you know the word write it in a complete sentence. After you are finished choose 3-5 words to use in a paragraph.

1) Binary star 2) constellation 3) Nebula 4)Galaxy 5) Red Shift 6) Big Bang 7) apparent magnitude 8) absolute magnitude 9) Parallax 10) Nuclear Fusion
11) protostar 12) black hole 13) main sequence star 14) supernova 15) spectroscope




The Universe: Write a perfect paragraph describing the history of the Universe.


Write a perfect paragraph describing our location in the milky way galaxy and the history of our galaxy. What is a black hole?


The Milky Way in 3D , Describe our location in our galaxy

Describe how big our sun is compared to the biggest star shown in this video, in a paragraph

Lifecycle of stars
1) How many stars are there in our galaxy?
2) What is the actual name for a stellar nursery?
3) What are the 3 lightest elements ?
4) What university is clifford Johnson a professor at?
5) Does the hydrogen gas start out hot or cold?
6) The heat rise to _______ million degrees
7) Hydrogen atoms fuse to form ____ atoms during nuclear __________
8) How does gravity act on a star? on Earth?
9) What do all main sequence stars have in common? How are they different?
10) what are the most common color of stars?
Describe the lifescyle of a sun like star in a paragraph

black hole questions
1) what is a black hole?
2) Where are the subaru observatory that detected the black hole?
3) What happened 13 billion years ago, what was a formed?
4) what telescope viewed thos event?
5) what is a quasar?
6) what is OJ287?
7) The Chandra X ray observatory photographed the largest black hole that was _______ solar masses
8) what is a acretion disc?
9) What local galaxy has formed a black hole?
10) what sits in the middle of the milky way galaxy approximately 28 million light years away?

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Responses

  1. The video is pretty cool I like the different types of galaxy and nebulas specialy NGC 2818 🙂

    • ty for commenting!

  2. I like how they talk about quasar and how its being sucked in by a black hole. I also like how the video describes the heavy gases it makes like oxygen, iron, calcium, and sylcon up to the point were it turns to a super nova and if enough matter goes to the core it will become a black hole


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