What is the life expectancy of a 2-solar-mass star?
Q: Star A and Star B are both on the main sequence. Star A is 74 times more luminous than Star B. What…
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Q: Suppose the Sun was part of a binary star system with a period of 15 years and an average separation…
A: Given data Time period ,T=15 years=15×3.154×107 sec Radius, r=10 AU=1.496×1012 m
Q: About how long, in years, will a 0.4-solar-mass star spend on the main sequence?
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Q: In a binary star system, the average separation between the stars is 4.0 AU, and their orbital…
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Q: A young star of several solar masses is called as ____________ a) LBV1806-20 b) Mira c) Cepheid…
A: To find: young star of several solar masses is called as
Q: Calculate the expected life span of a 16 solar mass star
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Q: star A and star B are both on the main sequence. star A is 56 times more luminous than star B. what…
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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: For each type of stellar explosion, identify its progenitor star
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Q: Describe the forces acting on a star during the main sequence period of its life?
A: A star has its gravity, and due to the hot core of a star, it creates pressure within the gas. Two…
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…
Q: A star with spectral type A0 has a surface temperature of 9600 K and a radius of 2.2 RSun. How many…
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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 type of star has the longest life span? a. O b. K c. B d. A e. M
A: What type of star has the longest life span?
Q: What critical event must occur in order for a protostar to become a star?
A: A very young star that is yet gathering mass from the parent molecular cloud is called a protostar.…
Q: What would a dead star of 2.5 solar masses be?
A: In massive stars the density and temperature of the core gain as much amount of heat to fuse the…
Q: a star converted every bit of its mass into energy the conversion efficiency would be 100%. However,…
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Q: Ideas of a content for a vlog which shows the star life cycle, thank you!
A: A star can go through either life cycle (a) if it is an average size star or life cycle (b) if it is…
Q: Calculate the lifetime of a 15 MSun star. Answer: ___ years
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Q: Observations show that stellar luminosity, L, and mass, M, are related by Lx M3.5 for main sequence…
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Q: Consider two stars on the main sequence, A and B. Star A has a mass of Мо Star B has a mass of 0.2…
A: Solution attached in the photo
Q: A turnoff point corresponding to the oldest star cluster would occur at what spectral…
A: Turnoff point in HR diagram is the point where the star leaves the main sequence branch
Q: When two stars are in the same star system, they can affect each other’s evolution. Two stars in the…
A: Two stars in the same system might evolve at a different pace, depending on their distances in the…
Q: Consider three main sequence stars: Star A is 12000 K, Star B is 6000 K, Star C is 3000 K. What are…
A: Given, Star A = 12000 K temprature Star B = 6000 K temprature Star C = 3000 K temprature So the…
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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: Star A and Star B are both on the main sequence. Star A is 63 times more luminous than Star B. What…
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Q: How long (in years) will a 0.06Msun main sequence star live? (The solar lifetime is 11 billion…
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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: What is the lifetime on the main sequence of a star whose surface temperature is 6500° K and whose…
A: Denote Stefan’s constant by σ. Evaluate the star’s luminosity (L) from its given temperature (T) and…
Q: The average star spends what percentage of its life in the protostar stage? a. 0.1% b. 5% c.…
A: The average star spends 90% of its life in the protostar stage An average star stellar evolution…
Q: In a star of 1 solar mass (M☉), the core hydrogen burning phase, also known as the main sequence…
A: In the field of stellar evolution, there is a principle that the lifetime of a star on the main…
Q: What is the luminosity of a 4-solar-mass main-sequence star?
A: The luminosity of a star is the amount of energy that it radiates per second. It can be considered…
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: 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: This star has a mass of 3.3 MSun. What is the main sequence lifetime of this star? You may assume…
A: The main sequence lifetime is given as:t α1M2.5it is given star has mass of 3.3 MSunSo,…
Q: What would a dead star of 1.1 solar masses be
A: White dwarfs are remnants of dead stars. White dwarfs are very dense and the mass of a white dwarf…
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: Place the following events in the formation of stars in the proper chronological sequence, with the…
A: The question can be solved as follows
Q: A star has a life expectancy of 5 billion years. What would be its mass?
A: A star will live as long as there are enough fusion reactions inside its core. Once the fusion stops…
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: the Sun?
A: Given: To explain the star which is white supergiant star also brightest and hottest than the Sun…
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: We observe a star that is dstar away. How much extinction would there need to be (i.e., what must…
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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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Q: A main sequence star of mass 25 M⊙has a luminosity of approximately 80,000 L⊙. a. At what rate DOES…
A: Given information: The mass of the star (m) = 25M⊙ The luminosity of the star (L) = 80000L⊙ part a):…
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