Universe
11th Edition
ISBN: 9781319039448
Author: Robert Geller, Roger Freedman, William J. Kaufmann
Publisher: W. H. Freeman
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Question
Chapter 27, Problem 11CC
To determine
The exact goal of the Kepler telescope as it searched for planets around stars.
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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?
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.)
Imagine a telescope was placed on the
planet Mercury and was used to measure
the positions of stars in the sky.
Assuming Mercury follows a circular orbit
with a semi-major axis = 0.387 AU and a
period = 88 days, calculate the maximum
%3D
stellar aberration that would be detected,
expressing your answer in arcseconds.
Choose the option below that best
matches your answer.
Select one:
Оа.
100
O b. 25
О с
60
O d. 15
O e.
33
Chapter 27 Solutions
Universe
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
Ch. 27 - Prob. 11CCCh. 27 - Prob. 12CCCh. 27 - Prob. 13CCCh. 27 - Prob. 14CCCh. 27 - Prob. 1CLCCh. 27 - Prob. 1QCh. 27 - Prob. 2QCh. 27 - Prob. 3QCh. 27 - Prob. 4QCh. 27 - Prob. 5QCh. 27 - Prob. 6QCh. 27 - Prob. 7QCh. 27 - Prob. 8QCh. 27 - Prob. 9QCh. 27 - Prob. 10QCh. 27 - Prob. 11QCh. 27 - Prob. 12QCh. 27 - Prob. 13QCh. 27 - Prob. 14QCh. 27 - Prob. 15QCh. 27 - Prob. 16QCh. 27 - Prob. 17QCh. 27 - Prob. 18QCh. 27 - Prob. 19QCh. 27 - Prob. 20QCh. 27 - Prob. 21QCh. 27 - Prob. 22QCh. 27 - Prob. 23QCh. 27 - Prob. 24QCh. 27 - Prob. 25QCh. 27 - Prob. 26QCh. 27 - Prob. 27QCh. 27 - Prob. 28QCh. 27 - Prob. 29QCh. 27 - Prob. 30QCh. 27 - Prob. 31QCh. 27 - Prob. 32QCh. 27 - Prob. 34QCh. 27 - Prob. 35Q
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- In Table 2, there is a list of 15 planets, some of which are real objects discovered by the Kepler space telescope, and some are hypothetical planets. For each one, you are provided the temperature of the star that each planet orbits in degrees Kelvin (K), the distance that each planet orbits from their star in astronomical units (AUs) and the size or radius of each planet in Earth radii (RE). Since we are concerned with finding Earth-like planets, we will assume that the composition of these planets are similar to Earth's, so we will not directly look at their masses, rather their sizes (radii) along with the other characteristics. Determine which of these 15 planets meets our criteria of a planet that could possibly support Earth-like life. Use the Habitable Planet Classification Flow Chart (below) to complete Table 2. Whenever the individual value you are looking at falls within the range of values specified on the flow chart, mark the cell to the right of the value with a Y for…arrow_forwardWhat diameter telescope is needed to see the separation between Uranus and its largest moon, Titania, from Earth at 550 nm, when Earth is 19.7 AU away? The moon is 436,300 km from the center of the planet. (Enter your answer in m.) marrow_forwardIf an individual was observing our solar system from Castor at a distance of 6.0 light years. What angular resolution in arcsecond is needed to resolve the Sun- earth system as distinct points of lightarrow_forward
- Please answer the following A) Suppose an object takes 1000 years to orbit the Sun. How many times farther from the Sun is it, when compared with Earth? B) Communications with the spacecraft Alpha using radio waves require 2000 years for the round trip (there and back). This implies that Alpha is how many light years away from Earth?arrow_forwardUsing a 8-m reflector telescope on Mars, what is the maximum distance we could measure using stellar parallax?arrow_forwardWhy is the Galilean telescope more useful viewing objects on the earth, than the Keplerian telescope?arrow_forward
- F = 9/5 C + 32 ; C = 5/9 (F - 32); K = 273 + C; Lambda = 2900/T; T^4 = I (128)(10^8); I1/I2 = ( D2 / D1 )2 Show All Calculations What is the intensity of sunlight on planet XZEON if: The intensity of direct sunlight on earth is Ie = 2.0 calories per square centimeter per minute and Planet XZEON is 7.7 times farther from the sun than the earth is.arrow_forwardThe 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_forwardThe angular separation in degrees of two objects is (physical separation × 360°) / (2 π × distance). If an individual was observing our solar system from Castor at a distance of 7.6 light years. What angular resolution, in arcsecond, is needed to resolve the Sun-Jupiter system (5.46 AU) as distinct points of light?arrow_forward
- The Apollo program (not the lunar missions with astronauts) being conducted at the Apache Point Observatory uses a 3.5 - m telescope to direct lasers at retro-reflectors left on the Moon by the Apollo astronauts. the Moon is 384, 472 km away approximately how long do the operators need to wait to see the laser light return to Earth? (Hint: The speed of light is 300,000 km/s.]arrow_forwardWhy is it so hard to see planets around other stars and so easy to see them around our own?arrow_forwardWhy can’t we use visible light telescopes to study molecular clouds where stars and planets form? Why do infrared or radio telescopes work better?arrow_forward
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