If a contracting prostar is 3 times the radius of the sun and has a temperature of 1680 k how lumminous will it be relative to the sun? Use luminosity radius temperature to the relation. The surface temperature of the sun is 5800k
Q: Many of the bright stars in the night sky are highly luminous normal blue stars (such as Acrux), and…
A:
Q: A star has a surface temperature of T = 10,000 K and a radius three times that of the Sun, R = 3R…
A:
Q: A 46M Sun main sequence star loses 1 MSun of mass over 105 years. (Due to the nature of this…
A: Total mass is The main sequence star loses of mass over Find:(a) The solar mass lost in a year.(b)…
Q: Effective Temperature (K) 25,000 10,000 -10 6,000 3,000 10 102 A +10- D 10-2 +15 B A 104 M F…
A: The Hertzsprung Russell diagram is used to plot the temperature of stars with their luminosity.…
Q: Suppose a star has the same luminosity as our Sun (3.8x1026watts3.8x1026watts) but is located at a…
A: as per our guidelines, we can answer only first question. please resubmit rest questions for…
Q: The Stelan Bomann equation can be used to estimate the size of asteroids. "Sigma," the…
A: In case of a Black body radiation, Stefan-Boltzmann's law relates the radiant emittance of the black…
Q: As we have discussed, Sirius B in the Sirius binary system is a white dwarf with MB ∼ 1M , LB ∼…
A: Given that: The mass of Sirius B: MB ~ 1MThe luminosity of Sirius B: LB ~ 0.024LThe radius of Sirius…
Q: At the surface of the sun, the temperature is approximately 5800 K. What fraction of the energy is…
A: (a) The total energy U of the electromagnetic radiation is given by following expression. Here, h…
Q: 13) Calculate the luminosity in watts from the absolute magnitude for the given stars: (a) Vega (M =…
A: The energy radiated per unit of time by an astronomical object is called luminosity. The…
Q: a) At solar maximum sunspots might cover up to 0.4% of the total area of the Sun. If the sunspots…
A: At solar maximum sunspot might cover up to 0.4% of the total area of the sun. We are asked to…
Q: If the Sun expanded to a radius 10 times its current size and its temperature decreased by 55%, how…
A: Given Radius of sun increased by 10 times Temp decreased buy 55% Tf = 0.45 Ti
Q: Observations show that stellar luminosity, L, and mass, M, are related by Lx M3.5 for main sequence…
A:
Q: Consider two stars: one being a red giant with a spectral type K0 and one being a supergiant with a…
A: The intrinsic luminosity of a star is given by Stefan-Boltzmann's law as L=σAT4σ is the…
Q: This star has a mass of 3.3 MSun. what is the main sequence lifetime of this star? You may assume…
A: Given data: Mass of the star MStar=3.3 MSun. The life time of the main sequence star is given as,…
Q: Why does the luminosity of a star depend on both its radius and its temperature?
A: Luminosity is the radiant power emitted by star. The luminosity is measured in Watt or Joules per…
Q: receives from the Sun by 8.7 ×10-10 LO. Jupiter's radius is 7.1 ×109 cm and its mass is 1.9 ×10…
A: Given Data: Energy radiated by Jupiter is L=8.7×10-10Lo=8.7×10-10×3.91×1026W/s. The radius of…
Q: Consider a star for which the stellar power per unit area at distance 1 AU from the star is 4.5…
A: Intensity at a distance is Radius of star is Note:The Stefan Boltzmann constant is Find:Surface…
Q: If the surface Temperature of a star was about 11000.0 K instead of 7000.0 K what is the ratio of…
A: Given , temperature of the star is 11000 K instead of 7000 K How many times greater is the magnitude…
Q: If the hottest star in the Carina Nebula has a surface temperature of 51,000 K, at what wavelength…
A: Concept: "The Wien's displacement law states that the wavelength carrying maximum energy is…
Q: if the sun expanded to a radius 200 times its present radius what would its average density ne in…
A:
Q: Vega has Mv = 0.5. How large is Mbol? Calculate the luminosity of Vega. Remember that Mbolo = 4.75.…
A: Given information": The absolute visible magnitude of Vega (Mv) = 0.5 The Spectral class of Vega is…
Q: ou observe a star with a telescope over the course of a year. You find that this star has a flux…
A: .In vertical direction:psinθ=40sin60Psinθ=4032Psinθ=34.6410 free body diagram:
Q: If the Sun expanded to a radius 160 times its current size and its temperature decreased by 55%, how…
A: SOlution: Given that Rnew = 160R Tnew = (1-0.55)T Tnew = (0.45)T
Q: Suppose the Sun’s main energy source was due to gravitational collapse and assume that the Sun has…
A:
Q: Many of the bright stars in the night sky are highly luminous normal blue stars (such as Acrux), and…
A: Given: The distance between the bright star and the earth is r = 620 light years The luminosity of…
Q: Use the Virial Theorem to estimate the temperature in the core of the Sun
A: Definition: Virial theorem states that when a system is in one equilibrium state and changes to…
Q: Why do two different gasses always have different spectral signatures?
A: Given Why do two different gasses always have different spectral signatures, as following below.
Q: Box 17-4 Suppose a star experiences an outburst in which its surface temperature doubles but its…
A: Firstly, let's use the formula for the volume of a sphere to determine the change in the star's…
Q: Given that the solar spectrum corresponds to a temperature of 5800 K and peaks at a wavelength of…
A: A blackbody is an object that is capable of absorbing all the radiation that falls on it. Black-body…
Q: 2.7 kW/m^2. Assume the radius of the star is 0.005 AU (similar to Sol). What is the surface…
A: we know that the intensity of the sun on earth or solar constant…
Q: If the Sun was producing its energy by slow contraction as suggested by Helmholtz and Kelvin,…
A: The Kelvin–Helmholtz mechanism is the process by which the surface of a star or planet cools which…
Q: The mass-luminosity relation describes the mathematical relationship between luminosity and mass for…
A: Given,mass =4M⊙ Note: We’ll answer the first question since the exact one wasn’t specified. Please…
Q: We will take a moment tổ compare ROw BrigriLIy a Wiite uwan stal sines Compdleu 10 a leu glant 3lai.…
A: Given: Tw=10,000 KTR=5,000 KRw=1100RsunRR=100Rsun we have to find ratio of Luminosity: LRLw=?
Q: A star has a luminosity (power output) of 9.2x1026 W and a diameter of 6.1x108 m. What is its…
A:
Q: How would the interior temperature of the Sun be different if the strong force that binds nuclei…
A:
Q: If a star has a surface temperature of 3000 K but a luminosity 150 times greater than our Sun, what…
A: luminosity = 150 times greater than Sun, temperature = 3000 K what size is this star?
Q: We will take a moment to compare how brightly a white dwarf star shines compared to a red giant…
A: The luminosity () of a star is related to its surface temperature () and radius () through the…
Q: Sirius is the brightest star in the sky (but is located in the Southern hemisphere). It has a…
A:
Q: If the sun expanded to a radius 5000 times its present radius, what would its average density be (in…
A: The volumetric mean radius of the sun, R⊙=6695,700 km=6.695×106 km=6.695×106 ×105 cm =6.695×1011 cm…
If a contracting prostar is 3 times the radius of the sun and has a temperature of 1680 k how lumminous will it be relative to the sun? Use luminosity radius temperature to the relation. The surface temperature of the sun is 5800k
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
