1. A planet orbits a star with a period of 275 days and semimajor axis of...

1. A planet orbits a star with a period of 275 days and semimajor axis of 3.4×10^11m. If this planet's eccentricity is zero, what is the mass of the star?

b. Another planet orbits this same star with a period of 453 days. If it's eccentricity is e= 0.43 then how fast is this planet moving at Perihelion? Aphelion?

c. What is the second planet’s Kinetic Energy at Aphelion if it has a mass of 5×10^26 kg? What is it’s potential energy at Aphelion?

Expert Solution

if you have any doubt related to the answer please let me know in comments. Give a thumbs up if you like the answer.

genius_generous answered 11 months ago

What is the orbital period (in years) of a planet with a semimajor axis of 15...

What is the orbital period (in years) of a planet with a semimajor axis of 15 AU?

Halley's comet orbits the Sun with a period of 75.3 yr. a) Find the semimajor axis...

Halley's comet orbits the Sun with a period of 75.3 yr. a) Find the semimajor axis of the orbit of Halley's comet in astronomical units (1 AU is equal to the semimajor axis of the Earth's orbit). b) If Halley's comet is 0.586 AU from the Sun at perihelion, what is its maximum distance from the Sun, and what is the eccentricity of its orbit? SHOW ALL WORK PLEASE!

An extrasolar planet has an orbital period of 2910.76 days and a semi-major axis of 2.027...

An extrasolar planet has an orbital period of 2910.76 days and a semi-major axis of 2.027 AU. What is the average orbital velocity (in km/s) of the planet?

Is the angular momentum of a planet conserved as it orbits a star? Explain your answer...

Is the angular momentum of a planet conserved as it orbits a star? Explain your answer using torque. Conservation of angular momentum: The angular momentum of an object or system is conserved whenever the total external torque on the object or system is zero. τ ⃗_ext=0 → ∆L ⃗=0

A planet orbits a Sun-like star at an orbital distance of 40 AU. What is its...

A planet orbits a Sun-like star at an orbital distance of 40 AU. What is its orbital period?

A planet has an eccentricity of 0.664 and orbits a star of mass 8.72×10^30 kg with...

A planet has an eccentricity of 0.664 and orbits a star of mass 8.72×10^30 kg with a period of 5.72 years. Give Answers in Meters 1. What is the semi-major axis of the planet's orbit? 2. What is the average velocity of the planet in its orbit? 3. What is the distance of closest approach to its parent start (perihelion)? 4. What is the farthest distance the planet travels away from its parent start (aphelion)?

The mass of Saturn is approximately 100 times that of the Earth, and the semimajor axis...

The mass of Saturn is approximately 100 times that of the Earth, and the semimajor axis of Saturn’s orbit is approximately 10 AU. (a) To this approximation, how does the gravitational force that the Sun exerts on Saturn compare to the gravitational force that the Sun exerts on the Earth? (b) Which planet will experience greater acceleration? By what factor?

Astronomers discovered an object in the outer Solar System with a semimajor axis of 577 AU....

Astronomers discovered an object in the outer Solar System with a semimajor axis of 577 AU. What is its orbital period? Its orbital period is how many years.

The planet Mars has a diameter of 6772 km, and it orbits the sun at a...

The planet Mars has a diameter of 6772 km, and it orbits the sun at a distance of 227.9 x 10^6 km. If the sun is assumed to radiate like a blackbody at 5760 K, and Mars has an albedo of 0.15 ( reflects 15% of incident radiation back to space), estimate the average temperature of the Martian surface. Ignore the effects of the thin Martian atmosphere.

Assume the a star orbits the center of the Galaxy in 340 million years at a...

Assume the a star orbits the center of the Galaxy in 340 million years at a distance of 40,000 light-years. Given that D3=(M1+M2)×P2D3=(M1+M2)×P2, where DD is the orbital distance (in AUs) and PP is the orbital period (in years), what is the mass of the Galaxy within the star's orbit? (Hint: 1 light-year = 63,240 AU).

Question