There are fewer eclipsing binaries than spectroscopic binaries. Explain why.
Q: Need help asap on this short question... will thumbs a completed answer.. thanks in advance Describe…
A: Concept: Stellar evolution is the process by which a star changes over time. The lifespan of a star…
Q: Why are there few spectroscopic binaries in which the stars are separated by more than 10 AU?
A: A binary star system is formed when two stars come close enough that they form an orbit around the…
Q: The figure below shows the spectra of two galaxies A and B. Please can i get help with this…
A: Dear student as per the QnA guidelines I will be answering the first 3 subparts of this problem…
Q: Explain why the sky is blue and how that relates to reflection nebulae.
A: Dispersion. Despersion is a phenomena in which when light passes beteen 2 particle it disperses.
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: Describe what the main differences that can occur between the life cycles of a Sun- sized star and a…
A:
Q: The Messier Catalog is a. a listing of all the stars within the Local Bubble b. a list of all the…
A: The Messier catalog is a list of 110 commonly found objects in the night sky that can be easily…
Q: The telescope and CCD camera described in question 2 are scheduled to observe the star cluster M67…
A: The cluster M67 is never visible in the sky from London so we should abandon any plans to observe…
Q: Wher would a star be located in the main sequence relative to the sun if its mass is 10 times that…
A: The position of the sun is in the middle of the H-R diagram due to its moderate temperature,…
Q: . How does the H-R digram of a given star cluster change as the cluster ages?
A: HR Diagram : Note : Blue color indicates the hottest stars and red color represent the…
Q: Describe why numerical modelling of stellar structure requires both outward and inward integration…
A:
Q: What are typical orbital periods for X-ray binaries? Oa Days for high-mass binaries and woeks for…
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Q: (Astronomy) X-Ray Binary. If an X-ray binary consists of a 20-solar-mass star and a…
A: Solution: Given Values, Mass of the star A MA=20 solar mass Mass of the neutron star MS=2.25…
Q: Our Sun is considered an "average" star. What is the average star really like? Explain. Could you go…
A: We can define an average star as: An average star, or more properly, an intermediate-mass star,…
Q: from the Sun (luminosity = 4x1026 Watts) before it appeared as bright as a 100-Watt light bulb…
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Q: True or False 8. Almost all stars are in binary systems. The book says: "So far you have been…
A: The statement: All stars are in binary systems. The book says: "So far you have been considering the…
Q: 4. Our Sun now spins once every 25 days and was formed from the gravitational contraction of an…
A: Given data The time taken by the sun is given as T1 = 25 days. The distance of the cloud is given…
Q: Globular clusters contain no stars more massive than the Sun. Which of the following seems like the…
A: First, we are aware that no stars more massive than the Sun can be found in globular clusters. Any…
Q: A planetary nebula is visible due to ____.
A: The nebula is the bright area in the sky, which can be cloud of stars or gas.
Q: The Hertzsprung-Russell diagram graphs stars' O brightness and temperature. O distance and…
A: Answer- brightness and temperature The Hertzsprung - Russell diagram is a graph in which we plot…
Q: How does luminosity differ from apparent brightness ?
A: The difference between luminosity and apparent brightness depends on distance. Luminosity is an…
Q: If the hottest star in the Carina Nebula has a surface temperature of 51,000 K, at what wavelength…
A: Concept: "The Wien's displacement law states that the wavelength carrying maximum energy is…
Q: 4) Why infrared is preferred to observe the stars around Sgr A*?
A: There are molecules of gas and dust in interstellar space. They are sent out when a star dies.…
Q: Why do distant stars look redder than their spectral types suggest?
A: The pace is mostly empty but there are areas of large density of the interstellar medium. It…
Q: Why are the Hll regions around 0 stars generally larger than those around B stars?
A: HII region is the interstellar region where atomic hydrogen is ionized. It is a cloud of partially…
Q: A distant galaxy has an apparent magnitude of 13 and is 5,000 kpc away. What is its absolute…
A: Apparent Magnitude The apparent magnitude of a star or a galaxy is the measure of how bright the…
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: Consider that the absolute luminosity of the disk of the Milky Way, in the blue band, is L_B=…
A: Given The total luminosity of the galaxy = 2.3×1010 LB Sun The absolute magnitude…
Q: What the main differences that can occur between the life cycles of a Sun-sized star and a massive…
A: We have to mention the main differences that can occur between the life cycles of a Sun-sized star…
Q: The amount of energy that falls on a given area every second, at the Earth is called: magnitude.…
A: Energy is incident on Earth surface from Sun .
Q: Hertzsprung-Russell Diagram Blue or blue-white White Yellow Red-orange Red O Rigel Supergiants…
A: Option a is the right answer Red color of the stars have lowest surface temperature
Q: What is a standard candle in the astronomical sense? How do Cepheid variables fit into this and what…
A: For distances which are too large to measure using parallax, astronomers use 'standard candles'.…
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: The figure below shows the spectra of two galaxies A and B.
A: 1. According to the figure Galaxy A has a high relative flux density which shows it has a dense…
Q: What is the color of the stars shown on the diagram that have the lowest surface temperature? O red…
A: Required: Color of the stars,
Q: How large is our supermassive black hole in terms of the size of the Earth’s orbit? (Divide the…
A: The Schwarzschild equation for the radius of the event horizon around a black hole is given by the…
Q: 21. Giant or Nebula Supergiant Stars Small or Medium- sized Star 22. Red Giant Star 23. 24. White…
A: 21 Pro star 23 Plantery nebula 22 Super nova 24 black hole
Q: 1) How are luminosity, mass and temperature of a star related?
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Q: A human eye is most sensitive to that wavelength( Am) at which the energy distribution of solar…
A: Given, (a) Wien's displacement constant,b=0.29cmKTemperature,T=5800K According to the Wien's Law the…
Q: What are the on the axes of a Hertzsprung-Russell diagram? (b) Name one thing you can tell about a…
A: Hertzsprung-Russell Diagram plots the temperature of the start against their luminosity (or) colour…
Q: What changes occur in the temperature and size of a Sun-sized star as it goes through its life…
A: As the star goes through its final stage of life cycle following thing happens We know that it…
Q: Topic: Life cycle of stars Q. If a giant star is cooler than a main sequence star, why does it have…
A:
Q: What is the relationship between the color of a reflection nebula and the color of the star that…
A: A nebula is a collection of cosmic dust, hydrogen, and other molecular clouds. They act as a region…
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