Comet ISON is one of the more recent comets that was originally called the "comet of...

Comet ISON is one of the more recent comets that was originally called the "comet of the century" but turned out to be less spectacular than predicted, while in the mid-1990s, there were two other very bright comets visible that made them real "comets of the century". Still, though, let's compare their orbits.

a) Here is the link to the ephemeris for ISON: http://scully.cfa.harvard.edu/cgi-bin/returnprepeph.cgi?d=c&o=CK12S010 (Links to an external site.)Links to an external site. -- note that q is the perihelion distance, and e is its eccentricity. Why don't they list a semi-major axis or period for its orbit? Can you describe what happened after its perihelion passage and how that relates to the values you gave previously?

b) Here is the link to the ephemeris for Hale-Bopp: http://www2.jpl.nasa.gov/comet/ephemjpl8.html (Links to an external site.)Links to an external site. -- note that q and e are provided for it, too. Calculate its semi-major axis in AU.

c) Calculate the aphelion and perihelion velocities for Hale-Bopp. Calculate the circular velocity for an object with a circular orbit with a radius equal to the aphelion distance of Hale-Bopp. How much would you have to change the velocity of an object on a circular orbit at that distance to put it on an orbit like Hale-Bopp's? What mechanisms do you know of that would potentially be able to change an object's velocity by that much?

Expert Solution

genius_generous answered 1 year ago

The so-called zero-g airplane (sometimes called "vomit comet") flies in parabolic arcs to provide sensation of...

The so-called zero-g airplane (sometimes called "vomit comet") flies in parabolic arcs to provide sensation of weightlessness to its passengers for brief periods of time (about 20 seconds). Along some of these parabolic arcs, as the airplane pulls up, the passengers feel not weightlessness but a sensation of "hypergravity," where they feel heavier than usual (often so heavy that it is difficult for the passengers to stand or sit upright). What happens to the passengers during these periods of hypergravity?

(b) [6] For a more realistic case in which the comet experiences gravitational forces, consider a...

(b) [6] For a more realistic case in which the comet experiences gravitational forces, consider a comet approaching Earth. Estimate the distance from the Earth (in Earth radii) at which Earth’s gravity begins to be as important as, or more important than, that of the Sun. Neglect the Moon’s gravity. Discuss the effect of the Moon’s gravity. ps: i already have answer for part a but for more background on the question, part a is listed below a.Suppose that a...

Generic types A class or interface that declares one or more generic variables is called a...

Generic types A class or interface that declares one or more generic variables is called a generic type. In this portion of the activity, you will make a class generic. Open GenericsC.java in jGRASP then compile it. At this point you should be familiar with the two type-safety warnings given by the compiler. You should be able to understand the source of the error: the use of the raw types List and Collection. Since the List being declared (al) is...

The motion of Halley’s comet and its motion. Halley’s comet travels in an elliptical orbit of...

The motion of Halley’s comet and its motion. Halley’s comet travels in an elliptical orbit of eccentricity ϵ = 0.97 around the Sun. At perihelion (closest approach), Halley’s comet is observed to be approximately 0.59 AU from the Sun. At aphelion the distance is about 35.08 AU, the semi-major axis of the elliptical orbit is 17.83 AU, and the orbital period is about 75.3 Earth years. 1) Since Earth has an essentially circular orbit that is 1 AU from the...

A comet moves in an elliptical orbit around the sun. As the comet moves from aphelion...

A comet moves in an elliptical orbit around the sun. As the comet moves from aphelion (the point on the orbit farthest from the sun) to perihelion (the point on the orbit closest to the sun), which of the following results is true? Speed of the comet Angular momentum of the comet/sun system Gravitational potential energy of the comet/sun system A Increases Increases Decreases B Increases Constant Decreases C Decreases Decreases Increases D Increases Increases Constant E Constant Constant Constant

The motion of Halley’s comet and its motion. Halley’s comet travels in an elliptical orbit of...

The motion of Halley’s comet and its motion. Halley’s comet travels in an elliptical orbit of eccentricity ϵ = 0.97 around the Sun. At perihelion (closest approach), Halley’s comet is observed to be approximately 0.59 AU from the Sun. At aphelion the distance is about 35.08 AU, the semi-major axis of the elliptical orbit is 17.83 AU, and the orbital period is about 75.3 Earth years. 1) Since Earth has an essentially circular orbit that is 1 AU from the...

Sometimes more than one atom arrangement is possible, these are called geometric isomers. For the molecules...

Sometimes more than one atom arrangement is possible, these are called geometric isomers. For the molecules below sketch all the possible geometric isomers. Then keeping in mind that nonbonding pairs on the central atom will try to get as far away as possible from both other bonding and nonbonding pairs, predict which will be the prefferred geometry in nature. Justify your choice. Name the molecular geometry of the prefferred structure. SF4(2 isomers) BrF3(3 isomers) XeF4(2 isomers)

1a.Summarize what Asteroid and Comet is b. Do people think an Asteroid or Comet Impact can...

1a.Summarize what Asteroid and Comet is b. Do people think an Asteroid or Comet Impact can be stop? Explain why c. Do people think an Asteroid or Comet Impact can notbe stop? Explain why d. Do you personally think an Asteroid or Comet Impact can be stop? Explain why.

Find a recent news article (within the last six months) which addresses one or more of...

Find a recent news article (within the last six months) which addresses one or more of the sources of demand. Based on the article, describe how the sources are shifting the demand. Is it increasing or decreasing? What is causing it? Will supply be sufficient to meet that demand level?

Matching: A. The promotion of more expensive products over the product originally purchased B. An ordering...

Matching: A. The promotion of more expensive products over the product originally purchased B. An ordering stimulus commonly used by direct marketers C. Establishes the price at the highest possible level D. The relative change in demand for a product given a change in its price __ Up-selling __ Price Skimming __ Price Elasticity __ Sweepstakes

Question

Comet ISON is one of the more recent comets that was originally called the "comet of...

Solutions

Expert Solution

Related Solutions

The so-called zero-g airplane (sometimes called "vomit comet") flies in parabolic arcs to provide sensation of...

(b) [6] For a more realistic case in which the comet experiences gravitational forces, consider a...

Generic types A class or interface that declares one or more generic variables is called a...

The motion of Halley’s comet and its motion. Halley’s comet travels in an elliptical orbit of...

A comet moves in an elliptical orbit around the sun. As the comet moves from aphelion...

The motion of Halley’s comet and its motion. Halley’s comet travels in an elliptical orbit of...

Sometimes more than one atom arrangement is possible, these are called geometric isomers. For the molecules...

1a.Summarize what Asteroid and Comet is b. Do people think an Asteroid or Comet Impact can...

Find a recent news article (within the last six months) which addresses one or more of...

Matching: A. The promotion of more expensive products over the product originally purchased B. An ordering...