Mercury is approximately 0.4 AU away from the Sun, whereas Neptune is approximately 30 AU away from the Sun. How long does it take light to reach Mercury and Neptune from the Sun?

Q: In Neptune's rings, each ring particle collides with another particle on average around every 8.7…

A: Given data:   Average time taken in one collision = 8.7 hours Survival time of ring particles =…

Q: Pluto has a temperature of about 50 K. Use Wien's law to calculate the wavelength at which Pluto is…

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Q: I have a found a planet with a period of 5 years. The star that it orbits is 2 times as massive as…

A: Orbital Period = 5 yrs Mass of star M = 2 solar mass

Q: What is the temperature for a very reflective, nearly white planet with a reflectivity of 99.3% at a…

A: Given data, Albedo α=99.3% Distance=1 AU

Q: How far is Pluto from earth in light years?

A: The SI unit of distance is meter. A light year is unit of distance used to measure astronomical…

Q: Calculate the value of the "solar constant" on Jupiter.

A: The amount of solar electromagnetic radiation available per unit area at a distance of 1AU is called…

Q: Although we say that the Earth orbits the Sun, in reality they are both orbiting the center of mass.…

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Q: he speed of the solar wind is approy400 km/s. How many days does the solar wind take to travel from…

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Q: What diameter telescope is needed to resolve the separation between an Earth-like planet and its…

A: The figure below depicts the given situation.

Q: Use this light curve of a star with a transiting exoplanet to answer the following. If the exoplanet…

A: Required to find the average orbital distance.

Q: Considering that Earth experiences an average intensity of sunlight of 1330 W/m? and is at a…

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Q: What is the apparent magnitude of the Sun as seen from Venus at perihelion? What is the apparent…

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Q: What is the reflectivity (in percent) needed to keep water at a temperature near its freezing point…

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Q: Analysis of the spectrum of a solar–mass star shows a periodic back-and-forth shift of its spectral…

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Q: Pluto is considered a binary dwarf planet system with its companion Charon. Pluto has a mass of…

A: The center of mass of a system of particles is the point at which all of the mass of the system can…

Q: Doppler shift lets you see a star move back and forth. O look larger and smaller. look bluer and…

A: By observing the color of an object, astronomers can measure the doppler shift of a starDue to the…

Q: What is the predicted fate of Triton?

A: Triton is the largest natural satellite of Neptune. It has a retrograde orbit or Triton has an orbit…

Q: A star with mass 1.05 M has a luminosity of 4.49 × 1026 W and effective temperature of 5700 K. It…

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Q: Why is Neptune a deep blue color?

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Q: You're on your way from Earth to Neptune, and you're 50 million kilometers from Earth.  Then at the…

A: We are going from Earth to Neptune and the distance between earth and Neptune is roughly 4.4…

Q: Light from the sun takes 8 minutes to reach earth. How long does it take to reach Neptune?

A: time taken by light to reach from sun to earth (t) = 8 mintues distance between sun and earth (d) =…

Q: L(1 – a) T = 4 40

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Q: The mass of the extra-solar planet HD-22 is 2.15E+26 kg, and it's radius is 1.52E+4 km. What is its…

A: Given value--- mass, m = 2.15×1026 kg radius, r = 1.52×104 km = 1.52×107 m. To find--- Density ?

Q: Our solar system is approximately 10 billion km across. This diameter can be also be expressed as:…

A: Diameter of our solar systemD= 10 billion km

Q: An exoplanetary system has two known planets. Planet X orbits in 290 days and Planet Y orbits in 145…

A: Given data *The time period of the Planet X is Tx = 290 days *The time period of the Planet Y is Ty…

Q: What percentage of the mass of the solar nebula consisted of elements other than hydrogen and…

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Q: Jupiters moon, lo, loses about 870.0 kg/s of sulfur dioxide to Jupiters magnetosphere. Sulfur…

A: Given:- Jupiter's moon, lo, loses about 870.0 kg/s of sulfur dioxide to Jupiter's magnetosphere.…

Q: Rigel is a bright star in the night sky - its apparent magnitude is 0.12. Venus, when it is at it’s…

A: Write the relationsip between the apparent magnitude, absolute magnitude, and flux ratio. Further,…

Q: What is the apparent magnitude of the sun as seen from Saturn about 10 AU away? Appear to magnitude…

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Q: Light takes about 8.3 minutes to travel from the Sun to Earth. When it is closest, Neptune is 30.0…

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Q: What produced the helium present in Jupiters atmosphere and inside Sun's core ?

A: When the universe was created in Big Bang the temperature was very high. Once the temperature cooled…

Q: The speed of the solar wind is approximately 400 km/s. How many days does the solar wind take to…

A: Given: Speed of solar wind = 400 kms

Q: The Sun has a radius of 6.955×105 km and a mass of 1.989×1030  kg. What is the density of the Sun?…

A: Considering sun as a sphere, the volume of sun is

Q: (a) The distance to a star is approximately 7.80 1018 m. If this star were to burn out today, in how…

A: Given that:- The distance of star is approximately equal to 7.8x10^18m

Q: Saturn is ten times as far from the Sun as is the Earth. How does the flux of solar energy at Saturn…

A: Solar energy flux=Luminosity of Sun (L)4πd2where d=distance

Q: An asteroid is 3 AUaway fromthe Sun when it is observed from the Earth at opposition. How large does…

A: The condition for the asteroid to block the Sun-like star is Here is the angle subtended by the…

Q: Jupiters moon, lo, loses about 119.0 kg /s of sulfur dioxide to Jupiter's magnetosphere. At this…

A: mass lost by lo per second = 119 kgsectime = 3×109 years 1 year = 3.15×107seconds original mass of…

Q: lanet is observed orbiting a 8.8 solar mass star (1 solar mass = 2 x1030 kg) with an orbital period…

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Q: In Saturns rings, each ring particle collides with another particle on average around 4.6 hours. If…

A: Given, In Saturns rings, each ring particle collides with another particle on average around 4.6…

Q: How does the dynamo effect take place in Neptune?

A: The Dynamo effect is the generation of a magnetic field due to rotation of the core in a planet.…