What is the life expectancy of a 16-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: About how long, in years, will a 0.4-solar-mass star spend on the main sequence?
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Q: The two types of cycles proposed in the stars for fusion are ________ a) p-p cycle and p-e cycle…
A: Option b
Q: In a binary star system, the average separation between the stars is 4.0 AU, and their orbital…
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Q: f a star’s lifespan is 1.1 × 10 7 years, what is its mass and spectral type?
A: The relation between star's lifetime and mass is given by : tt⊙=MM⊙−2.5Here, M⊙ is mass of sun.…
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: 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: 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: 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 is the life expectancy of a 2-solar-mass 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: 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 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: The chemical abundance of population I stars a. indicates that they were formed before the…
A: Population I star consist of sun and tend to be hot, young, luminous and focused in the spiral…
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: The giant star Betelgeuse has an angular diameter as observed from Earth of about 0.05 arc seconds.…
A: Solution:-
Q: Which star in the table below has the least surface temperature? Star Name d (parsecs) Parallax…
A: Since, distance of the star in terms of Parallax is, d=1parallax (in arc-sec)parsecs Now from…
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: A star with mass 1.05 M has a luminosity of 4.49 × 1026 W and effective temperature of 5700 K. It…
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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: In every nebula, a star is beginning to form. a) True b) False
A: True or False: In every nebula, a star is beginning to form.
Q: .
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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: 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: The place on the H–R diagram where contracting protostars first become visible is a. the…
A: The place on the H–R diagram where contracting protostars first become visible is the birth line.
Q: The Sun has a mass of 1.989 × 10^30 [kg], but only 10% of that mass is available for hydrogen fusion…
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Q: On a Hertzsprung-Russell diagram, where on the main sequence would we find stars that have the…
A: We need to investigate where we find the largest main sequence stars in the H-R diagram.
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: A turnoff point corresponding to the youngest star cluster would occur at what spectral…
A: The turnoff point of a star is the point where it leaves the main sequence of the HR diagram after…
Q: Sn1604 a supernova in the year 2000 the age then was 396 years calculate the speed of expansion of…
A: Sn1604 a supernova in the year 2000 the age then was 396 years.If Kepler’s supernova expanded ar…
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: 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: 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: 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: 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…
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