has a surface temperature of 4000 K while star B is 40,000 K on it th have the same radius, indicate the statement that is true:
Q: a) Calculate the period of the solar system's orbit around the Milky Way. Assume that we are 8.5 kpc…
A:
Q: A star has a surface temperature of T = 10,000 K and a radius three times that of the Sun, R = 3R…
A:
Q: The Hα spectral line has a rest wavelength of 6562.8 ˚A (remember: 1 ˚A = 10−10 m). In star A, the…
A: Given: The wavelength of the Hα=6562.8 Ao. The wavelength of Hα spectral of star A is 6568.4 Ao. The…
Q: The Stelan Bomann equation can be used to estimate the size of asteroids. "Sigma," the…
A: In case of a Black body radiation, Stefan-Boltzmann's law relates the radiant emittance of the black…
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: A star has a parallax angle of 0.0270 arcseconds and an apparent magnitude of 4.641. The distance to…
A: Write the equation relating Luminosity Lsn and Lst to the absolute magnitude Msn and Mst of sun and…
Q: At rest hydrogen has a spectral line at 149nm. If this line is observed at 144nm for the star…
A: Given:hydrogen spectral line at rest, λs = 149 nmobserved spectral line, λ = 144 nmAsked:What is the…
Q: An astronomical image shows two objects that have the same apparent magnitude, i.e., the same…
A: Let the luminosity of the star is Ls= LoLuminosity of Milky Way galaxy, Lm=1011LoLuminosity of…
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: Suppose a protostar has a luminosity of 157,341 Lo and a surface temperature of 4,540 K (Kelvins).…
A: Given: Luminoscity of protostar, 157341 LS Surface temperature of protostar, 4540 K Surface…
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: Star A has an effective temperature of TA = 7200 K and a radius of RA = 2.04R, asecond star, Star…
A: Let LA be defined as the luminosity of star A and LB be defined as the luminosity of star B. The…
Q: Consider two stars, A and B, of equal size. You take a spectrum of each star and find that the flux…
A:
Q: The apparent magnitude of a star is observed to vary between m = +0.4 and m = +0.1 because the star…
A: Given: The apparent magnitude of the star varies between m+ = 0.4 and m- = 0.1 The radius of the…
Q: Suppose a star has a luminosity of 7.0x1026 watts and an apparent brightness of 4.0×10-12 watt/m?.…
A: Luminosity of star (L) = 7×1026 watt Apparent brightness (AB) = 4×10-12 Wm2
Q: This star has a mass of 3.3 MSun. what is the main sequence lifetime of this star? You may assume…
A: Given data: Mass of the star MStar=3.3 MSun. The life time of the main sequence star is given as,…
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: Calculate the surface temperature of the star Betelgeuse whose λmax is 850 nm
A: Wien's Law of Blackbody Radiation λmaxT = a constant = 3 × 106 where λmax = wavelength of radiation…
Q: If the surface Temperature of a star was about 11000.0 K instead of 7000.0 K what is the ratio of…
A: Given , temperature of the star is 11000 K instead of 7000 K How many times greater is the magnitude…
Q: The present-day density of the sun is about 1.4 g/cm3. The volume of a sphere is 4/3πr3. The density…
A: Given:ρsun=1.4g/cm3ρstar=ρsunxRsunRstar3volume of sphere =4/3πr3to find:ρsun when Rsun=50 times…
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: Star 1 and star 2 have the same V-magnitude, V = 7.5. However, they have different B-magnitudes, B1…
A: Given data : Star 1 and star 2 V-magnitude, V = 7.5 B-magnitudes, B1 = 7.2 and B2 = 8.5 d2 = 10d1 To…
Q: Suppose the distance to a star is doubled. Then the luminosity of the star is O Remains the same,…
A: Luminosity and apparent brightness are 2 different things. Luminosity is unique property of body and…
Q: What is the escape velocity (in km/s) from the surface of a 1.5 M neutron star? From a 3.0 M neutron…
A:
Q: What is the escape velocity (in km/s) from the surface of a 1.6 M, neutron star? From a 3.0 Mo…
A: The mass of the Sun, M⊙=1.99×1030 kg The radius of the neutron star, r=11 km
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: 2GM What is the escape velocity (in km/s) from the surface of a 1.1 Mo neutron star? From a 3.0 M.…
A: Escape velocity is the speed that is sufficient for a body to escape from a gravitational center of…
Q: Draw an H-R diagram and dot the following question options on the diagram (using the letters given…
A:
Q: 51 Pegasi" is the name of the first normal star (besides the Sun) around which a planet was…
A:
Q: Consider two stars A and B, with apparent magnitudes mA = 3 and mB = 13. How much brighter (in…
A: Given, mA = 3 and mB = 13 Now, the difference in apparent magnitude is n = mB -…
Q: Box 17-4 Suppose a star experiences an outburst in which its surface temperature doubles but its…
A: Firstly, let's use the formula for the volume of a sphere to determine the change in the star's…
Q: You've just discovered a new X-ray binary, which we will call Hyp-X1 ("Hyp" for hypothetical). The…
A:
Q: Rigel is a bright star in the night sky - its apparent magnitude is 0.12. Venus, when it is at it’s…
A: Write the relationsip between the apparent magnitude, absolute magnitude, and flux ratio. Further,…
Q: If a T Tauri star is the same temperature as the Sun but is eighteen times more luminous, what is…
A:
Q: QUESTION 16 Use the figure shown below to complete the following statement: A low-mass protostar…
A: During the formation of a low-mass protostar, a protostar accumulates mass by accreting material…
Q: Consider the following question: How many times bigger than the sun would a cool star (4000K) have…
A:
Q: If a star has a surface temperature of 3000 K but a luminosity 150 times greater than our Sun, what…
A: luminosity = 150 times greater than Sun, temperature = 3000 K what size is this star?
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: A star has a period of P = 37 days. It has a radius of 5.7 times the radius of the sun. Calculate…
A: The period of the star: P = 37 days (37 x 24 x 60 x 60 seconds = 3.2 x 106 seconds); The radius of…
Q: (a) The figure shows the three stars and their velocities. Which star has the largest proper motion?…
A:
Q: Finally estimate the lifetime of an M0 spectral type star if the total mass of the star is M =…
A:
Q: Suppose a star has a luminosity of 7.0x1026 watts and an apparent brightness of 4.0x10-12 watt/m?.…
A: Given: The luminosity is 7x1026 W. The apparent brightness is 4x10-12 W/m2.
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: As a star runs out of hydrogen to fuel nuclear fusion in its core, changes within the star usually…
A: Given A star has a radius 12 times that of the Sun, but a surface temperature 0.5 times that of the…
Step by step
Solved in 2 steps