What is the luminosity of a 4-solar-mass main-sequence star?
Q: About how long, in years, will a 0.4-solar-mass star spend on the main sequence?
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Q: All stars start their lives with the same basic composition. What determines their differences? O…
A: Mass they formed with
Q: In a binary star system, the average separation between the stars is 4.0 AU, and their orbital…
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Q: Which of the following is most likely to occur when mass is continually added to a 1.5 solar mass…
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Q: of a star occur
A: Possible stages of a star that occurs are as follows:
Q: The mass-luminosity relation describes the mathematical relationship between luminosity and mass for…
A: L/Lo = (M/Mo )3.5 here the luminosity is to be found in terms of Lo M = 4Mo
Q: What would be the approximately luminosity of a main sequence star with a temperature of 9,000°C ?…
A: Temperature = 9000° C=9273.15 K Luminosity will be given by following formula:L=σT4 L is the…
Q: Which stars are associated with a planetary nebula? black holes, neutron star's, white dwarf or main…
A: Required : What are planetary nebula associated with.
Q: If a stellar remnant is in between 0.4 and 1.4 solar masses, the resulting object will be a a.…
A: If a stellar remnant is in between 0.4 and 1.4 solar masses, the resulting object will be a white…
Q: This star has a mass of 3.3 MSun. What is the main sequence lifetime of this star? You may assume…
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Q: A star is observed with a surface temperature of 3,000 K and a luminosity of 100,000 solar…
A: Given , Temperature = 3000 K Solar Luminosity = 100,000 Now , mass and luminosity are related by…
Q: What are the approximate spectral type, temperature, absolute magnitude number, and luminosity of…
A: Required : Spectral type, absolute magnitude, temperature and luminosity of star E.
Q: For each type of stellar explosion, identify its progenitor star
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Q: What is the life expectancy of a 2-solar-mass star?
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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: What is the life expectancy (in years of a 19M main-sequence Star? What is the life expectancy (in…
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Q: Calculate the luminosity of an 8 solar mass star.
A: The luminosity of a star is the amount of energy that it radiates per second. It can be considered…
Q: What size star is the sun? O supergiant O medium O giant O white dwarf
A: The sun size is about 696340 km in radius and it's mass is 1.989*10^30 kg.
Q: A 2-solar-mass star on the main sequence would have a luminosity of approximately ____________ solar…
A: Given A 2-solar-mass star on the main sequence would have a luminosity of approximately, as…
Q: What is the temperature of a star emitting light with a peak wavelength of 7,080 angstroms? T=…
A: Given : λmax = 7080 angstroms = 7080*10-10 m. From Wien's law the temperature of star is T =…
Q: The percentage of helium used immediately during a star’s helium flash phase is
A: It is a very brief phase
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: Which main-sequence star would be the least luminous? a. G1 b. G5 c. G9 d. F0 e. F3
A: Given:Which main-sequence star would be the least luminous.Now, Main sequence stars (V) Spectral…
Q: What causes a star to move off the main sequence?
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Q: Main sequence star A is 5 times as massive as main sequence star B. How do the main sequence…
A: Main sequence stars are those which fuse hydrogen atoms in their core to form helium. They have a…
Q: What is the luminosity of a star having three times the radius of the Sun and a surface temperature…
A: The luminosity of a star is a measure of the total amount of energy that is radiated by a star per…
Q: What is the total mass of a visual binary system if the average separation of the stars is 8 AU and…
A: A binary system is formed when two astronomical objects come close enough to start orbiting each…
Q: What is the mass of a star with a main-sequence lifetime of 4 billion years? 17 X solar masses
A: According to stellar theories & observations the average lifetime of main-sequence stars has…
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: .
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Q: Why does the orbital period of a binary star depend on its mass?
A: A binary system is formed when two massive astronomical objects start orbiting each other around a…
Q: Calculate the absolute magnitude of a star at a distance of 6 pc with an apparent magnitude of 3.
A: The apparent magnitude and absolute magnitude are two terms used to define the brightness of a star.…
Q: What is the life expectancy of a 16-solar-mass star?
A: Stars are formed due to the gravitational collapse of interstellar gases which contain mostly…
Q: 2. A solar-type star is seen with an apparent magnitude my = 30. Assuming that there is no…
A: As we know that,The distance modulus is a common technique of measuring distances in astronomy. It…
Q: How massive have to be a main-sequence star in order to survive for at least 15 billion years?
A: The objective of this question is to determine the mass of a main-sequence star that would allow it…
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: Sun-like star transitions into a Red Giant __________. Group of answer choices after the planetary…
A: Solution Given dataSun like star transitions into a Red Giant ..........Which option is correct…
Q: A star with spectral type A0 has a surface temperature of 9600 K and a radius of 2.2 RSun. How many…
A: Given: Tstar = 9600 KRstar =2.2 RsunTsun=5778 KMstar = 3.3 Msun
Q: How long can a 4-solar-mass star live?
A: Stars are formed due to a balance between the radiation pressure created due to fusion and the…
Q: Question 32 Consider three Main Sequence stars, an O star, an F star and a K star, each with an…
A: Question 32: Among O star, F star, and K star each with a magnitude of 2 . which one is most…
Q: the Sun?
A: Given: To explain the star which is white supergiant star also brightest and hottest than the Sun…
Q: D5
A: Given that:-Luminosity, L=78.4×1026 WattRadius, r=1.2×106 km=1.2×106×103 m=1.2×109 mLuminosity,…
Q: Calculate the mass of a star having a diameter of 6E5 km and an average density of 1.1 g/cm3
A: It is given that,
Q: Consider three main sequence stars: Star A is 14,500 K, Star B is 2,900 K, and Star C is 5,500 K.…
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