So sorry for the delay - feel free to submit it Monday instead of this Thursday.
1. Explain the meaning of Newton's law of universal gravitation, particularly the inverse square part.
2. What does it mean to be "weightless"?
3. A particular star has a parallax angle of 0.2 arcseconds. How far away is it (in parsecs)?
4. Answer these questions based on a star chart for this month:
a. What star/object is directly overhead?
b. What are the 3 stars of the Summer Triangle, and in what constellations do they reside? Note that one is part of Cygnus (often called the "northern cross") - this helps you tell them apart.
c. Draw the star patterns, starting with the Big Dipper that would help you find these objects: Polaris, Cassiopeia, Arturus, Spica
d. What do you notice about the constellations that reside along the ecliptic?
e. What are the brightest stars in tonight's sky?
If the skies are dark enough, go outside and try to locate everything above.
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