Assuming that the star S0-2 has a semi-major axis of 0.1 arcseconds and is 10 kpc...
Assuming that the star S0-2 has a semi-major axis of 0.1 arcseconds and is 10 kpc from us. Assume that the Milky Way’s black hole is 5 million solar masses. What is the star’s period?
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Assuming that the star S0-2 has a semi-major axis of 0.1
arcseconds and is 10 kpc...
(25 points) A star known as S2 is in orbit around a massive, dark object thought...
(25 points) A star known as S2 is in orbit around a massive, dark object thought to be a black hole at the center of the Milky Way Galaxy. Based on the spectral type of the star, S2's mass is about 15Mo. The period of the orbit is about 15 years, the eccentricity of the orbit is about 0.9, and the semimajor axis of the orbit is about 1000 AU. Remember that IAU = 1.5 × 1013 cm. In solar...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0 x 1011 solar masses. A star orbiting near the galaxy's periphery is 5.7 x 104 light-years from its center. (a) What should the orbital period (in y) of that star be? 24.2e6 ху (b) If its period is 5.1 x 107 years instead, what is the mass (in solar masses) of the galaxy? Such calculations are used to imply the existence of other matter,...
3. In this problem, we are going to examine the supermassive black hole in the center...
3. In this problem, we are going to examine the supermassive black hole in the center of our galaxy, Sagittarius A.. (a) (15 points) We can calculate its mass using the orbits of stars gravitationally bound to it in the same way that you can use the Earth's orbit to calculate the mass of the Sun). The orbit of a star, S2, has been fully mapped out. Its period is 15.24 yr and semi-major axis length is 980 AU. Using...
5- Consider a binary system composed of a star 1 and a star 2 that both...
5- Consider a binary system composed of a star 1 and a star 2 that both have very eccentric orbits (el = e2 = 0.500). They both take 3.00 months to complete an orbit but the semi-major axis of star 2 is three times larger than that of star 1. The two stars are very close to each other since the sum of their semi-major axes is 0.500 AU. They both lie 50.0 ly from us. a) Make a somewhat...
The semi-major axis of Callisto's orbit around Jupiter is 0.013 AU. The period of its orbit...
The semi-major axis of Callisto's orbit around Jupiter is 0.013 AU. The period of its orbit is 0.046 years. What is Jupiter's mass? A. 0.00029 solar masses B. 0.0010 solar masses C. 0.58 solar masses D. 1.7 solar masses E. 960 solar masses
It is said that at the center of every galaxy is a supermassive black hole (the...
It is said that at the center of every galaxy is a supermassive black hole (the picture below shows a picture towards the center of the Milky Way from the Keck Observatory). By observing the orbits of nearby stars, you can get a crude estimate of the mass of this black hole by assuming the stars have a circular orbit. Consider the star SO-2, which has an orbital period of 16.3 years. Its average distance from the black hole is...
MI Review | Constants Periodic Table wnat is the semi-major axis of the planer's ordit? A...
MI Review | Constants Periodic Table wnat is the semi-major axis of the planer's ordit? A new extrasolar planet (outside our solar system) has been discovered. This planet orbits a star of mass 1.00x1031 kg with a period of 6.52 years. It is also known that the planet has an eccentricity of 0.684. ► View Available Hint(s) IVO AXO ? Semi -major axis = m Submit Previous Answers X Incorrect; Try Again; 5 attempts remaining Part B What is the...
Question 1) When does a protostar become a true star? Select one: a. when the star...
Question 1) When does a protostar become a true star? Select one: a. when the star is 1 million years old b. when the central temperature reaches 1 million Kelvin c. when nuclear fusion begins in the core d. when the thermal energy becomes trapped in the center Question 2: On average, what is the greatest mass a newborn star can have? Select one: a. 10 solar masses b. 50 solar masses c. 150 solar masses d. 300 solar masses...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0x10^11...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0x10^11 solar masses. A star orbiting near the galaxy's periphery is 6.0X10^4 light years from its center. (For your calculations, assume that the galaxy's mass is concentrated near its center.) (a) What should the orbital period of that star be in yr ? (b) If its period is 6.0 x 10^7 years instead, what is the mass of the galaxy? Such calculations are used to...
Today, the Moon’s orbit around Earth has a semi-major axis of a=384,400 km and an orbital...
Today, the Moon’s orbit around
Earth has a semi-major axis of a=384,400 km and an orbital period
of 27.32166 days.
a. The Moon slowly moves outward due to tidal braking of the
Earth’s rotation, and at some future date the Moon will have an
orbital period of 47 days. Compute the semi-major axis of the
Moon’s orbit at this future date (express your answer in
kilometers).
semi-major axis = 5.5*10^5 km
b. Today, the Moon has an angular diameter of...
(25 points) A star known as S2 is in orbit around a massive, dark object thought to be a black hole at the center of the Milky Way Galaxy. Based on the spectral type of the star, S2's mass is about 15Mo. The period of the orbit is about 15 years, the eccentricity of the orbit is about 0.9, and the semimajor axis of the orbit is about 1000 AU. Remember that IAU = 1.5 × 1013 cm. In solar...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0 x 1011 solar masses. A star orbiting near the galaxy's periphery is 5.7 x 104 light-years from its center. (a) What should the orbital period (in y) of that star be? 24.2e6 ху (b) If its period is 5.1 x 107 years instead, what is the mass (in solar masses) of the galaxy? Such calculations are used to imply the existence of other matter,...
3. In this problem, we are going to examine the supermassive black hole in the center of our galaxy, Sagittarius A.. (a) (15 points) We can calculate its mass using the orbits of stars gravitationally bound to it in the same way that you can use the Earth's orbit to calculate the mass of the Sun). The orbit of a star, S2, has been fully mapped out. Its period is 15.24 yr and semi-major axis length is 980 AU. Using...
5- Consider a binary system composed of a star 1 and a star 2 that both have very eccentric orbits (el = e2 = 0.500). They both take 3.00 months to complete an orbit but the semi-major axis of star 2 is three times larger than that of star 1. The two stars are very close to each other since the sum of their semi-major axes is 0.500 AU. They both lie 50.0 ly from us. a) Make a somewhat...
It is said that at the center of every galaxy is a supermassive black hole (the picture below shows a picture towards the center of the Milky Way from the Keck Observatory). By observing the orbits of nearby stars, you can get a crude estimate of the mass of this black hole by assuming the stars have a circular orbit. Consider the star SO-2, which has an orbital period of 16.3 years. Its average distance from the black hole is...
MI Review | Constants Periodic Table wnat is the semi-major axis of the planer's ordit? A new extrasolar planet (outside our solar system) has been discovered. This planet orbits a star of mass 1.00x1031 kg with a period of 6.52 years. It is also known that the planet has an eccentricity of 0.684. ► View Available Hint(s) IVO AXO ? Semi -major axis = m Submit Previous Answers X Incorrect; Try Again; 5 attempts remaining Part B What is the...
Today, the Moon’s orbit around
Earth has a semi-major axis of a=384,400 km and an orbital period
of 27.32166 days.
a. The Moon slowly moves outward due to tidal braking of the
Earth’s rotation, and at some future date the Moon will have an
orbital period of 47 days. Compute the semi-major axis of the
Moon’s orbit at this future date (express your answer in
kilometers).
semi-major axis = 5.5*10^5 km
b. Today, the Moon has an angular diameter of...
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