Study Guide: Astronomy Test 2 (Chapters 6–9)
Astronomy Study Guide: Quiz 6 (Chapter 6 and 7)
Chapter 6: Optics and Telescopes (pp. 129–153)
keywords: (p. 154) CCD,
light-collecting area,
angular resolution,
imaging,
timing,
light curves,
spectroscopy,
spectrograph,
diffraction grating
light pollution,
twinkling
adaptive optics,
interferometry,
optical window,
radio window,
radio telescope,
infrared telescope,
ultraviolet telescope,
X-ray telescope,
gamma ray telescope.
key ideas: 1.What is a CCD?
2.What are the three basic categories of things that Astronomers use telescopes for? (Answer: imaging, spectroscopy, and timing.)
3.What is a spectrograph?
4.What are the three major ways that Earth's atmosphere negatively affects ground based astronomy. (Answer: it absorbs all but light with frequencies near the visible and radio portions of the spectrum, light pollution, and twinkling.)
5.What is the process that is used to correct atmospheric disturbance (twinkling) called?
6.What are the two regions in the spectrum of light for which the Earth's atmosphere is transparent?
7.Why are telescopes placed in space?
8.What is the process called in which two or more telescopes separated by a baseline distance are combined to reduce the diffraction limit?
9.What type of measurements are made in each of the 7 ranges in the spectrum of light (from gamma rays to radio waves)?
10.What ranges of the full spectrum of light needs space based telescopes and why?
Chapter 7: Comparative Planetology I: Our Solar System (pp. 159–180)
keywords: (p. 180) Sun
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
terrestrial planet
Jovian planet,
icy world,
asteroid,
asteroid belt,
comets
Kuiper Belt
magnetic field
average density
impact crater
key ideas: (p. 180–2) 1.What are the two major planet types and what distinguishes them apart?
2.What are the main characteristics of a Jovian Planet? of a terrestrial...