4. Now you observe a second planet, which has the same length year as Planet X, but the shape of its orbit about its star is shown below: 5. If you carefully watched this planet during the entire orbit, describe its speed as it moves around its star. 6. Using your answer from (5) above, copy the diagram and mark out the approximate positions of the planet in its orbit at one month intervals B-L (Assume the planet is moving anti-clockwise and that there are 12 months in the planet's year. Point A has already been marked for you.)

4. Now you observe a second planet, which has the same length year as Planet X, but the shape of its orbit about its star is shown below: 5. If you carefully watched this planet during the entire orbit, describe its speed as it moves around its star. 6. Using your answer from (5) above, copy the diagram and mark out the approximate positions of the planet in its orbit at one month intervals B-L (Assume the planet is moving anti-clockwise and that there are 12 months in the planet's year. Point A has already been marked for you.)

Astronomy

1st Edition

ISBN:9781938168284

Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff

Publisher:Andrew Fraknoi; David Morrison; Sidney C. Wolff

Chapter2: Observing The Sky: The Birth Of Astronomy

Section: Chapter Questions

Problem 3E: Explain, according to both geocentric and heliocentric cosmologies, why we see retrograde motion of...

See similar textbooks

Similar questions

A planet in a circular orbit about a star has an orbital radius of 3.70 au . If the star has a mass that is 1.80 times our own Sun's mass, determine the time ? , in units of Earth years, for one revolution of the planet around the star.T = ? Earth years
A planet � moves in a circular orbit around a Star named planet of mass �! =2.7 × 10"# kg as shown in figure 2. The period of the orbit is 14 days. Derive a suitable mathematical formula to calculate the radius of the orbit.
A planet that has a mass equal to that of the Earth is orbiting a star that has the same mass as the Sun. The planet orbits at an average distance of 1.95 AU. How does the gravitational force between this planet and its star compare to the force between the Sun and the Earth?
Determine what the period of the revolution of the earth would be if it's distance from the sun were 3.0 AU rather than 1 AU. Assume that the mass of the sun remains the same.
A man weighs 800 N on Earth. Calculate its weight on the Moon, knowing that the mass of the Earth is 81 times that of the Moon and that the (approximate) radii of the two stars are 6,380 km and 1,600 km respectively. We must take 5.98 × 1024 kg as the mass of the Earth.
Determine what the period of revolution of the Earth would be if its distance from the sun would be 4 AU rather than 1 AU. Assume that the mass of the Sun remains the same. State the law that you use to figure this out, and show your calculation.
A planet orbits the Sun every 539.4 years. What is its distance (semi-major axis of the orbit) from the Sun? (Give your answer in SI units and include the unit.)
Suppose we discovered a planetary body orbiting our Sun at a distance of 15 AU. How long would this world take to complete one orbit around the Sun? please show work Suppose Astronomers noticed a moon around the newly discovered planet in Question 2. By watching this moon, noting its period and distance from the planet, which of the following could they find: the mass of the moon, the mass of the planet, both masses, neither mass. Explain.
Suppose the Sun were somehow replaced by a star with five times as much mass. How long would the Earth year last in this last case? (hint: Newton’s version of Kepler’s 3rd Law)
Plant A orbits a star at a distance R from the center of the star. Planet B circles the same star with a period eight times that of Planet A. Planet B orbits the star at a distance of. a. 4R b. 1/8R c. 8R c. 1/4R
The planets move around the sun in elliptical orbitswith the sun at one focus. The positions of a planet thatare closest to and farthest from the sun are called itsperihelion and aphelion, respectively. Use Exercise 23(a)to show that the perihelion distance from a planet to thesun is a(1 - e) and the aphelion distance is 1(a+e)
Which planets have more than one Earth year period, planets nearer than Earth to the Sun, or planets farther from the Sun than Earth?