What is the temperature of a star emitting light with a peak wavelength of 7,080 angstroms?
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A: The time dilation equation is, τ=τ01-v2c2 Here, the total life is τ0,
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Q: Calculate the mass of a star having a diameter of 6E5 km and an average density of 1.5 g/cm3.…
A: We have : Density = masscolumeVolume of star = 43x π x r3Diameter of star = 6 x 105kmRadius of star…
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A: From Ohm's law,Voltage So, Where, is the resistance is the current.
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Q: If a star has an apparent magnitude equal to its absolute magnitude, how far away is it in parsecs?
A: Given that :Apparent magnitudemp=Mv
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Q: A newly discovered bright star has a luminosity of 78.4×1026 W. What is its temperature if it has a…
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Q: Calculate the distance of a star if the stellar spectrum indicates an absolute magnitude of -10.0,…
A: Given,Absolute magnitude, M =- 10Apparent magnitude, m = 5From magnitude distance formula,m -M = 5…
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Q: Plot the spectral emittance the five bodies in our solar system Listed here: Sun (6000 K) Venus (600…
A: The spectral emittance of a body is given by : Bλ(λ,T)=2hc2λ51ehc/λkT−1Here, h is the planck's…
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Q: What is the luminosity of a 4-solar-mass main-sequence star?
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Q: How hot is the sun?
A: Answer Sun is the largest and most massive object in the solar system. Sun is about 93 million miles…
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A: For calculating the wavelength emitted by a hot body consider it as a blackbody. A blackbody is an…
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Q: The main-sequence age of a star of 1M⊙ is about 1010 years. What is the main-sequence age of a star…
A: Answer the following question is
Q: A star has a life expectancy of 5 billion years. What would be its mass?
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Q: Calculate the distance of a star if the stellar spectrum indicates and absolute magnitude of -10 and…
A: The given data are listed below with suitable variables. Here, M denotes the absolute magnitude and…
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Q: An isotope of a radioactive element has half-life equal to 9 thousand years. Imagine a sample that…
A: Given:- Half-life of radioactive sample (t1/2) = 9000 years Let us assume 'N∘' be the…
Q: what is the mass of a star with a main- sequence lifetime of 3 billion years
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Q: What is the luminosity of a star having four times the radius of the Sun and a surface temperature…
A: Given data The surface temperature of the star is: T = 8000 K The radius of the star is four-time…
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Q: An astronomer observes several stars with different colors. Rank them in order from highest…
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