Use the following questions to check your understanding of some of the many types of visual information used in astronomy. For additional practice, try the Chapter 7 Visual Quiz at Mastering Astronomy.
The plots above show the masses of the eight major planets on the vertical axis and their radial on the horizontal axis. The plot on the left shows the information on a linear scale, meaning that each tick mark indicates an increase by the same amount. The plot on the right shows the same information plotted on an exponential scale, meaning that each tick mark represents another actor-of-ten increase. Before proceeding, convince yourself that the points on each plot are the same.
3. Which statements most accurately describes the relationship between the largest and smallest planets?
a. The largest planet is 6000 times as wide (in diameter) and 30 times as massive as the smallest.
b. The largest planet is 6000 times as wide (in diameter) and 6000 times as massive as the smallest.
c. The largest planet is 30 times as wide (in diameter) and 30 times as massive as the smallest.
d. The largest planet is 30 times as wide (in diameter) and 6000 times as massive as the smallest.
Want to see the full answer?
Check out a sample textbook solutionChapter 7 Solutions
EBK COSMIC PERSPECTIVE, THE
- The diagram below shows the orbit of a star with an exoplanet and the corresponding radial velocity curve for the star. Four locations in the planet's orbit are shown. Questions 5-8 refer to this diagram. 5. For each of the four locations of the planet, mark and label on the star's orbit where the star would be at that time. 6. For each of the four positions of the star, draw arrow to indicate which way the star is moving at that time. 7. For each of the four positions of the star, indicate whether the star's light is redshifted, blueshifted, or not shifted. 8. Mark and label the positions on the radial velocity curve that correspond to the four letters. Remember that positive radial velocities correspond to the star moving away from the Earth!! ↑ To Earth Orbit of Star Orbit of Planet D 2 Radial Velocity (m/s) 50 25 -25 -50 ←++ Timearrow_forwardPlease answer parts C and Darrow_forwardDirection: Use your knowledge about solving equations to work out to complete the table below. Show your solution with proper units. R° (meters) T R° / T° { (meters) / Planet Average Times of Radius of Revolution (seconds) (seconds) } Planet's Orbit (Planet's year) R T (seconds) (meters) Mercury 5.7869 x 10:0 7.605 x 10 Venus 1.081 x 101 1.941 x 107 Earth 1.4996 x 10" 3.156 x 10 Mars 2.280 x 101 5.936 x 10 Jupiter 7.783 x 10" 3.743 x 10 Saturn 1.426 x 10 9.296 x 10arrow_forward
- Explain what is meant by the distance ladder in astronomy. Describe briefly how each “rung” of the distance ladder is calibrated so that a reliable measure of distance can be obtained using each of the methods. State clearly the range of distances that can be measured by each method that makes up the distance ladder.arrow_forwardThis is Pre-Calc! Please help and Thank you! Please click the pics for the background info Directions: Answer questions 1-8 based on the information on Table 1. Round all answers to the nearest thousandth and label with the appropriate units. 1. According to Table 1, what is the closest distance between Earth and Mars? 2. According to Table 1, what is the farthest distance between Earth and Mars? 3. Based on your answers from #2 and #3, what is the average distance between the two planets? 4. Based on your answers from #2 and #3, what is the amplitude of the distances? 5. The distance has a period of 772 days. Write a sinusoidal equation relating the number of days and distance from Earth to Mars. 6. Based on the equation from #5, what is the distance between our planets on Mr. Schutt’s birthday (day 187)? 7. Write a sinusoidal equation relating the number of days and the one-waycommunication between Earth to Mars. 8. What is the one-way communication time delay between our planets on…arrow_forwardAt present there are 8 planets in the solar system. In the early models, there were only 6 planets. What is the reason behind this? Describe a model of the modern solar system in terms of the number of planets, their arrangement and the model’s center.arrow_forward
- You are given the following data from observations of an exoplanet: Using Kepler’s Third Law (r3 = MT2 where M is the mass of the central star) find the orbital radius in astronomical units of this planet. M = 1.5 times the mass of the sun. Remember to convert days to years using 365.25 as the length of a year in days. What is the semimajor axis of this planet in AU? - Knowing the orbital radius in both kn and AU, use the value in km to find the circumference of the orbit, then convert that to meters. (Assume the orbit is a perfect circle). - Knowing the orbital circumference and the period in days, convert the days to seconds (multiply by 86,400) and find the orbital velocity in m/s - With that orbital velocity, the radius of the orbit in meters, find the centripetal acceleration of our exoplanet - Knowing the acceleration that our planet experiences, calculate the force that the host star exerts on the planet - Knowing the force on the planet, the orbital radius, and the mass of the…arrow_forwardPlease answer the question and subquestions completely! This is one whole question which has subquestions! According to the official Bartleby guidelines, each question can have up to two subquestions! Thank you! 1) Use Kepler's Law to find the time (in Earth’s years) for Mars to orbit the Sun if the radius of Mars’ orbit is 1.5 times the radius of Earth's orbit. 1.8 2.8 3.4 4.2 A) The mass of Mars is about 1/10 the mass of Earth. Its diameter is about 1/2 the diameter of Earth. What is the gravitational acceleration at the surface of Mars? 9.8 m/s2 2.0 m/s2 3.9 m/s2 4.9 m/s2 none of these B) A 9.0 x 10 3 kg satellite orbits the Earth at the distance of 2.56 x 10 7 m from Earth’s surface. What is its period? 1.1 x 10 4 s 4.1 x 10 4 s 5.7 x 10 4 s 1.5 x 10 5 sarrow_forwardActivity 1: Drawing or Illustration Draw or illustrate Kepler's Three Laws of Motion. Label and explain each illustration. Include the equation used to describe Kepler's Laws of Planetary Motion. Kepler's First Law of Planetary Kepler's Second Law of Motion: Planetary Motion: Drawing/ Illustration Drawing/Illustration Equation: Explanation: Equation: Explanation: Kepler's Third Law of Planetary Motion: Drawing/ Illustration Equation: Explanation: Activity 3: Problem Solving Activity Answer the following problems and show your process using the four guide steps for solving problems. a. The mean solar distance of Earth is 1.50 x m with a period of 1 year. What is the distance of mars from the sun if it has a period of 1.88 years? - b. Titan, the largest moon of Saturn, has a mean orbital radius of 1.22x109 m. The orbital period of Titan is 15.95 days. Hyperion, another moon of Saturn, orbits at a mean radius of 1.48x109 m. Use Kepler's third law of planetary motion to predict the orbital…arrow_forward
- Please please solve accurate and exact answer please it's important Please fast thanks sir I'll rate good if accurate. Thanksarrow_forwardIn 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_forwardUsing high resolution adaptive optical techniques, observations of a nearby (9.5 pc) cool star of mass 0.2 solar masses indicate the presence of a small rocky exoplanet in a circular orbit with a radius of 0.01 arcseconds. Using Kepler's Laws, estimate the period of the exoplanet's orbit in days. select units Aarrow_forward
- Stars and GalaxiesPhysicsISBN:9781305120785Author:Michael A. Seeds, Dana BackmanPublisher:Cengage LearningAstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStax