How long can a 4-solar-mass star live?
Q: About how long, in years, will a 0.4-solar-mass star spend on the main sequence?
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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: How do the temperature and size of a Sun-sized star fluctuate over the course of its life?…
A: Immediate Assistance : You cannot wait for help if you require quick aid. Because it also implies…
Q: require(s) that a young hot star (T ≥ 25,000 K) be relatively nearby.
A: Correct answer is Emission nebula
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: 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: A red giant loses a solar mass in 150,000 years via a superwind. After 0.9 million years, it has a…
A: Dear student, as per the Qn-+A guidelines I will answer the first question only. Please, ask the…
Q: What is the life expectancy of a 2-solar-mass star?
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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 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: 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 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: Calculate the approximate lifetime of a 60 solar mass O star (1 million solar luminosities, 50% of…
A: The Lifetime of a Star:- The lifetime of a star is defined by the equation: τs=τo×MMo-2.5…
Q: 12) Calculate the absolute magnitude of a star with a luminosity of 3.2L-sun-
A: The absolute magnitude defines how bright a star would be if it was observed from a distance of 10…
Q: A star had an apparent magnitude m = 2.1 and an absolute magnitude M = 1.6 1) Calculate the distance…
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Q: 1 There are 200000 AU radius clouds will form a star of 10 solar masses and the 150000 AU radius…
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Q: Why massive stars are short lived?
A: A massive star has a shorter life spanthan an average star because of fasterhydrogen fuel…
Q: The density of Sirius B is 2×106 g/cm3 and its mass is 1.95×1030 kg. What is the radius of the white…
A: The given data are: ρ=2×106 g/cm3=2×109 kg/m3m=1.95×1030 kg Here, ρ and m represent the density and…
Q: Consider two stars on the main sequence, A and B. Star A has a mass of 9. Мо Star B has a mass of…
A: Solution attached in the photo
Q: A planet orbits 1 AU from a star that is 2 times as massive as our Sun. How does the star's…
A: Let, The luminosity of the star = L The luminosity of the Sun = LSun The mass of the star = M The…
Q: Given that a pair of stars are found to be orbiting each other with a period of 11.86 [yrs] and a…
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Q: Two stars are found to orbit each other once every 6.00 months. If the orbital radius (distance)…
A: According to Kepler’s third law, for a binary star system, we have the following relation between…
Q: 5. The charges of two particles are as follows: Q=2 x 10 8C and Q, = 3 x 107 C. Find the magnitude…
A: The force between two charges separated by a the distance r is given by coulomb's law as: F =…
Q: There are 200000 AU radius clouds will form a star of 10 solar masses and the 150000 AU radius…
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Q: The total luminosity of the Sun is 4e26 Watts. a) What is the mass (in kg) that the Sun loses each…
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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: planetary nebula expands at 38 km/s. How far will it expand (in km) in 3 million years?
A: Here given nebula is expanding with given speed. As in 1 sec nebula expands 38 Km, In 3 million…
Q: A planetary nebula expands at 32 km/s. How far will it expand (in km) in 0.6 million years?
A: Expansion rate of the Nebula: It can be defined as the distance up to which the nebula expands in a…
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: 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: Calculate the exchange arc
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Q: Why does a star's life expectancy depend on its mass?
A: Stars are formed due to the gravitational collapse of interstellar gas. This collapse is…
Q: describing the various stages in the life of a 1.0 solar mass star, 0.5 solar mass star, and a 3.0…
A: In this question we have to describe the life of a 0.5, 1.0 and 3.0 solar mass stars.
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: Using the center-of-mass equations or the Center of Mass Calculator (under Binary-Star Basics,…
A: Given: In this question, the given details are Consider the star 1 has m1=3.4 solar masses, and the…
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: 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: Assuming a mass loss rate of 3*10^-8 solar masses yr^-1 and a stellar wind velocity of 100 km s^-1…
A: Required : Mass density at the 100 AU
Q: (a) The figure shows the three stars and their velocities. Which star has the largest proper motion?…
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Q: using the center of mass equations or the Center of Mass Calculator (under Binary Star Basics,…
A: Given: In this question, the given details are, To investigate a specific binary-star system by…
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):…
Q: How much energy would be released if a star with a mass of 25 Msun and a radius of 10 Rsun detonates…
A: Required : The energy released in supernova explosion
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