UNIVERSE LL W/SAPLINGPLUS MULTI SEMESTER
11th Edition
ISBN: 9781319278670
Author: Freedman
Publisher: MAC HIGHER
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Chapter 27, Problem 28Q
To determine
The size (in km) of the smallest detail that a system consisting of several extremely high-resolution infrared telescopes in space with an effective diameter of
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What diameter telescope is needed to resolve the separation between an Earth-like planet and its star at 550 nm if the linear separation between them is 1 AU and the star system is 1 pc from Earth?
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What diameter telescope is needed to resolve the separation between an Earth-like planet and its star at 550 nm if the linear separation between them is 1 AU and the star system is 1 pc from Earth? (Give your answer in m.)
Chapter 27 Solutions
UNIVERSE LL W/SAPLINGPLUS MULTI SEMESTER
Ch. 27 - Prob. 1CCCh. 27 - Prob. 2CCCh. 27 - Prob. 3CCCh. 27 - Prob. 4CCCh. 27 - Prob. 5CCCh. 27 - Prob. 6CCCh. 27 - Prob. 7CCCh. 27 - Prob. 8CCCh. 27 - Prob. 9CCCh. 27 - Prob. 10CC
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- The New Horizons probe flew past Pluto in July 2015. At the time, Pluto was about 32 AU from Earth. How long did it take for communication from the probe to reach Earth, given that the speed of light in km/hr is 1.08109 ?arrow_forwardIf a star must remain on the main sequence for at least 4 billion years for life to evolve to intelligence, what is the most massive a star that can form and still possibly harbor intelligent life on one of its exoplanets? (Hints: Use the formula for stellar life expectancies, Eq. 121, and data in Appendix Table A-7.)arrow_forwardSuppose you gathered a ball of interstellar gas that wasequal to the size of the Earth (a radius of about 6400 km). Ifthis gas has a density of 2.8 hydrogen atoms per cm3, typicalof the interstellar medium, what would its total mass be? (For comparison, a bowling ball has a mass of about 5 kg)(HINT: 2.8 hydrogen atoms per cm3corresponds to a densityof 4.68 × 10−21 kg/m3)arrow_forward
- What was the Kepler telescope? Group of answer choices A telescope on Kitt Peak in Arizona A telescope on Mauna Kea in Hawaii. A satellite telescope that detected thousands of exoplanets. A european space telescope that detected the first exoplanets.arrow_forwardIf you could visit another planetary system while the planets are forming, would you expect to see the condensation sequence at work, or do you think that process was most likely unique to our Solar System? How do the properties of the extrasolar planets discovered so far affect your answer? Do you expect the most planetary system in the Universe have analogs to our Solar System’s asteroid belt and Kuiper Belt? Would all planetary systems show signs of an age of heavy bombardment? If the solar nebula hypothesis is correct, do you think there are more planets in the Universe than stars? Why or why not?arrow_forwardOn planet Mysterio, when the sun is directly overhead the optical depth equals one (τ=1) at an altitude of 6 km. The neutral gas density at this altitude is 7×1011 particles/cm3. The ionization cross-section and photon flux at the top of the atmosphere have average values of σi = 3×10-19 cm2 and Itop = 5×109 photons cm-2 s-1, respectively. Calculate the photo-ionization rate at an altitude of 6 km for these conditions. Report answer in scientific notation to 2 significant digits. The photo-ionization rate is _____. cm-3 s-1arrow_forward
- Let's assume it took Voyager 1 13 years to reach the edge of solar system at a distance of 40 AU. How fast was voyager 1 traveling in Km/hr?arrow_forwardWhy is the Galilean telescope more useful viewing objects on the earth, than the Keplerian telescope?arrow_forwardWhy does the Drake equation implicitly assume the Copernican Principle?arrow_forward
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