Mr. Bailey's Earth Science class page
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Here Comes The Sun.....

For today's assignment, click on the following link:

April 27, 2007


For today's assignment, click on the following link:

March 22, 2007

Try these when you're finished...


Go to the websites found below to answer the questions listed.

Turn in your answers to the substitute at the end of the period.

1) How long would it take a car to get to the moon? (assuming it actually could!)

2) How long would it take for a 757 jet to get to the moon? (assuming it actually could!)

3) The voyager spacecraft is one of the fastest spacecrafts launched to date. How long would it take the Voyager spacecraft to get from Earth to the moon?

4) How long would it take Voyager to get to Proxima Centauri?

5) Explain why interstellar space travel is out of reach for us with current rocket propulsion technology.

6) Sketch what the big dipper will look like in 100,000 years.

7) What will the Belt of Orion look like in 500,000 years? (sketch it!)

8) When comparing the same size collector at different distances from a source emitting particles, what pattern is seen? (Click "run", then after 20 -30 seconds, click stop. Then click "plot")

9) Why is it that we can see the dark line spectrum from the sun?

10) What are the characteristics of an "M" class star?

11) What is the likely classification of the Sun? (HINT: Pay attention to the temperature and color)

12) What are the first signs of a star's old age?

13) There are how many recognized constellations (original)?

14) What does the constellation delphinus represent?

15) Compare the absolute brightness of Sirius with its apparent magnitude. Is it further away than 32.6 light years, or closer than 32.6 light years? (THIS lets me know whether you understand the difference between the two magnitudes, and whether you understand the concept of absolute magnitude!)

16) Write the Greek alphabet letter which represents Sirius.

17) List the 7th brightest star... (both apparent and absolute...)

18) How did Hubble classify galaxies?

19) What are the 3 major types of galaxies, by Hubble's classification scheme?

20) What are irregular galaxies?

Trip planner....

Star motion over time....

(Use the drop down menu on the web site to change constellations...)

particle count animation....

More lines...bright and dark

How Stuff Works...

Life and death...


Letters are so confusing...


Click on the
link below for today's assignment and questions.


Happy Groundhog day!!!


By going to the web sites below you should be able to find the answers to questions on your study guide that may be difficult to find.

1) Diagram and label a comet's structure and explain why the tail always points away from the sun.

2) Diagram and label a lunar eclipse and a solar eclipse.

3) Diagram and label the moons internal structure

4) What is a Blue Moon?

5) How did Fred Whipple describe a comet?

6) What causes the moons phases?

Go to this web site and discover the parts of a comet. Make sure you change the different variables while you are on the site. It will help explain a lot of things about the orbits of both planets and comets.

Comet info and animations

This web site has a very nice diagram and great information about comets. It doesn't mention Whipple, but it does have the desciption which he gave them!

Comet Introduction

This is a very interesting site - it has animations of the different areas of the Solar System, and includes the very outermost part of the Solar System. Make sure you do the close-ups.

Inner, Middle, and outer Solar System information and animations

Make sure you toggle on the buttons to change your perspective of the Solar System.

Solar System animations

On this web site find animations of various things having to do with astronomy. Hopefully this will work, but I haven't checked out the web site on the computer lab machines. IF it works, make sure you check out "The Phases of the Moon" and "Where will the moon be tomorrow".

Movies for Astronomy

This animation of actual photo's of Jupiter and its moons shows motion over time.
7) How long would it take to see the motion shown in the animation?

Jupiter Moon Animation

If you're STILL looking for Fred Whipple's stuff to answer your study guide...

About Fred Whipple....

Lots of Links....

At this web site you can find information about the moons structure.

Moon structure....

Eclipse information....

Lunar eclipse photo gallery....

Shadow and Substance eclipse animation....

Lunar eclipse animation....

Why eclipses happen....

Solar eclipse information....

Solar eclipse animation....

IU Astronomy Dept. movies and animations....

Make sure you start and stop this animation at its various phases. It shows you what an observer on Earth would see and the relationship between the Sun-Earth-Moon system.

Lunar phase animation....


Lunar Phase animation....

What is a blue moon???

Blue moon mistake?

Blue moon..Really!!!


Use the following links to find information answering the questions on your study guide about topics NOT in your textbook for your test tomorrow.

Here are nice animations illustrating Kepler's laws:

Kepler 2nd law

Kepler mpeg

Keplers laws and Ptolemy's Epicycles

Kepler 2nd law illustration

Java Applet

Retrograde motion/epicycles

Kepler gif

Interactive Law of Periods

Illustration AND explanation of Law of Periods

1st and 2nd laws interactive

Animation of Retrograde motion (Mars)

Best animation of epicycles with explanation

Best animation explaining why we see retrograde motion


What's in a name? (Sedna)

Sedna characteristics and the Kuiper Belt


Wiki - Eris

Universe today - Eris (Good one!)

Ceres and dwarf planet

Ceres + its status as a planet/asteroid/dwarf planet - you NEED to read about it's history/status!

Nine planets?

Click on the following link for today's assignment:

Planets and more...


A) Go to
and check out comet McNaught. It's now visible in both the morning and evening skies. This web site has links to show you where to look.

B) Go to the following web sites and answer the questions below.


Solar Scouts

Seattle Astronomical Society

Orion learning pages

1) What are the 3 types of telescopes?

2) How is the telescope magnification calculated?

3) Explain the difference between a refracting telescope and a reflecting telescope.

C) Have a look at the applet linked below and answer the question.

Classzone applet

4) Sketch the Earth's tilt relative to the sun during September

D)What part of the electromagnetic spectrum do each of the following telescopes detect?

Hubble Space Telescope

Spitzer Space Telescope

Chandra Space Telescope

Compton Space Telescope

James Webb Space Telescope

10) What is meant by "first light" relative to a telescope?

Make sure you check out the fabulous images for each telescope. Turn in your papers when you are finished.

The Stonebelt Stargazers have their monthly meeting on the third Monday each month at 6:30 p.m. in the Morrow Observatory classroom. Visitors are always welcome! Special events are held throughout the year, such as Grissom Days at Spring Mill State Park.

Stonebelt Stargazers Links Page

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Lowell Bailey

Bedford-North Lawrence High School
595 N. Stars Boulevard
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