AP Physics Halley's Comet

Halley's comet orbits the sun roughly once every 76 years. It comes very close to the surface of the Sun on its closest approach. Estimate the greatest distance of the comet from the sun. Is it still in the Solar System? What planet's orbit is nearest when it is out there?

  1. 👍
  2. 👎
  3. 👁
  1. Yes, it is still in the solar system. Halley is one of those comets with orbits in the planetary system.
    It's periodic returns demonstrates that is was in orbit around the sun and that some comets are members of the solar system. Halley's expected reurn to the inner solar system is the year 2061. Neptune is the planet nearest. One may still think Pluto is an acceptable answer...

    1. 👍
    2. 👎
  2. Halley's expected return....

    1. 👍
    2. 👎
  3. They want you to use Kepler's Third Law and the 76 year period to estimate the gretest distance of Halley from the sun. Using that Law will get you the semimajor axis distance (a), which in this case is about half the farthest "aphelion" diatance, since it comes very close to the sun.

    P^2/a^3 = 1 is Kepler's third law for bodies orbiting the sun.

    a^3 = (76)^2 = 5776
    a = 17.9
    2a (the maximum distance from the sun) = 35.8 a.u.
    P is in years and a is in astronomial units (a.u.).

    The average distance of Pluto from the sun in about 44 a.u.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    Halley's Comet orbits the sun about every 75 years due to the gravitational force the sun provides. Compare the gravitational force between Halley's Comet and the sun when the Comet is at aphelion (its greatest distance from the

  2. Science, need help please!!

    Please help me with this science, thank you!! The sun is a mid-sized, main sequence star. What stage is next in the life cycle of the sun? A red giant B blackhole C white dwarf D neutron star ------------------------ Astronomers

  3. Physics

    Halley’s comet orbits the Sun with a period of 76.2 years. a) Find the semi-major axis of the orbit of Halley’s comet in astronomical units (1 AU is equal to the semi-major axis of the Earth’s orbit Physics - drwls,

  4. Astronomy

    The average distance between the Earth and the Sun is called the astronomical unit (AU), which is about 150 million km (1.5 x 108 km). Jupiter is 780 million km from the sun. a) How far is Jupiter from the sun in astronomical

  1. science

    if i weigh 100 lbs on earth how much would i weigh on halley's comet?


    How do i do this? According to Kepler's Laws, planets have elliptical orbits, with the sun at one of the foci. The farthest Pluto gets from the sun is 7.4 billion kilometers. The closest it gets to the sun is 4.4 billion

  3. Physics

    Earth orbits the sun once every 365.25 days. Find the average angular speed of Earth about the sun. Answer in units of rad/s

  4. PHYSICS!!

    Comet Halley returns every 74 years. Find the average distance of the comet from the sun. How do i do this??

  1. Science

    1.)Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? (1 point) A.)comet B.)asteroid C.)dwarf planet D.)planet

  2. geometry

    A comet's path can be modeled by one branch of the hyperbola y2 1096 􀀀 x2 41334 = 1; where the sun is at the focus of that part of the hyperbola. Each unit of the coordinate system is 1 milloion miles. nd the coordinates of the

  3. Science

    1.)Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? A.)comet B.)asteroid C.)dwarf planet*** D.)planet Thanks for the help, Luna

  4. Science

    The Northern and Southern Hemispheres experience opposite seasons and different day lengths, no matter what time of year. What is the best explanation for these variations in seasons and daylight? A) The Moon orbits in a path

You can view more similar questions or ask a new question.