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Q: Please answer the following A) Suppose an object takes 1000 years to orbit the Sun. How many times…
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Q: Recall that Hubble’s Law is given by V=HR; this means that H has units of inverse seconds (1/sec).…
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Q: (a) The colour temperature can be determined from two magnitudes corresponding to two different…
A: To show that : Tc = 7000 K(B-V) +0.47 where, wavelength of B band, λB= 440 nm…
Q: An astronomer makes precise measurements of a star with respect to the background celestrial sphere.…
A: Given, The star changes its position from January 1 to July 1 by a total of 1.9 arc seconds. Its the…
Q: DISTANCE IN
A: Parallax angle is in mas, we can convert angle to distance in parsec by following formula Distance…
Q: At what distance is an object if its parallax, as measured from either end of a 1000-km baseline, is…
A: The given data we have: Baseline: 1000km The parallax is to be measured at angles θ=1o,1',1''
Q: What four (4) stars are not as bright (luminous) as our Sun? JUST NAME 4 STARS THAT ARE NOT AS…
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Q: What diameter telescope is needed to resolve the separation between an Earth-like planet and its…
A: The figure below depicts the given situation.
Q: Why is being able to determine a distance form just an angular measurement important? Also why is…
A: As we know, The angular measurements are the divided circle by the scale of a vernier protractor. It…
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: What is the distance (in meters) of an object that has an angular diameter of 100 arcseconds and a…
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Q: What is the wavelength of maximum intensity (in nm) and the total energy emitted (in J/s/m2) by a…
A: By the Wien's law the relation between Temperature (T) and wavelength is given by,
Q: Find the speed for a star in which this line appears at wavelength 122.5 nmnm.
A: Given wavelength = 122.5 nm Hydrogen transition wavelength = 121.6 nm Speed of light is c = 3×108…
Q: Question: Record the angular shift. 1.7 arcsec Question: These images were taken six months apart,…
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Q: . These images were taken six months apart, first when Earth was as far to one side of Alpha…
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Q: What is the apparent magnitude of the Sun as seen from Venus at perihelion? What is the apparent…
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Q: Using the proportionality relationships for stellar luminosity as a function of mass and stellar…
A: Stellar lifetime is directly proportional to Stellar mass. Stellar luminosity is inversely…
Q: Stellar parallax is used as a tool to determine distances to stars. Describe how stellar parallax…
A: The idea behind parallax is that when the position of the observer changes, the more distant objects…
Q: If star A has an observed flux that is 1 million times larger than star B, what is the magnitude…
A: Let the flux observed from the star A is BA and the star B is BB. Then Relative brightness can be…
Q: Two treads balls with masses 2 kilogram and three kilograms are suspended on threads of 70…
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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: If two stars, star A and star B, have equal luminosities, but star A has half the surface…
A: luminosities of star is proportional to R2T4 T is temperature and R is radius
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: What diameter telescope is needed to resolve the separation between an Earth-like planet and its…
A: Given data The wavelength is given as λ=550 nm. The separation between the star and telescope is x…
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: What is the wavelength of maximum intensity (in nm) and the total energy emitted (in J/s/m2) by a…
A: The temperature of the celestial body is given to be 7K. In case of a celestial body which we…
Q: Part D By how much? ΑΣΦ LM=-2 100000000 %3D LM=8 Submit Previous Answers Request Answer
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Q: As we read in the book, a star that appears to be 1 magnitude brighter will have approximately 2.5…
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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 diameter of the Sun is 1,391,400 km. The diameter Moon is 3,474.8 km. Find of the the ratio, r=…
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
Q: Problem 2: A 5.0-mm-diameter proton beam carries a total current of I = 1.5 mA. The current density…
A: Given that:Diameter of the proton beam, D=5.0 mm=5.0×10-3 mRadius of the proton beam, R=5.0…
Q: As we read in the book, a star that appears to be 1 magnitude brighter will have approximately 2.5…
A: Required : Approximate ratio of the flux.
Why is it necessary to have a long baseline when using triangulation to measure the distances to objects in space? b) Of all visible objects in the celestial sphere, which appears to move the least? Why?
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- A remote-sensing payload operates in the infrared part of the spectrum (lambda = 1 micrometer). If it has an aperture diameter of 1 m, what would its resolution be (in meters) while operating in a geosynchronous orbit (35,786 km)? What formula would I use to find this?Next you will (1) convert your measurement of the semi-major axis from arcseconds to AU, (2) convert your measurement of the period from days to years, and (3) calculate the mass of the planet using Newton's form of Kepler's Third Law. Use Stellarium to find the distance to the planet when Skynet took any of your images, in AU. Answer: 4.322 AU Use this equation to determine a conversion factor from 1 arcsecond to AU at the planet's distance. You will need to convert ? = 1 arcsecond to degrees first. Answer: 2.096e-5 AU (2 x 3.14 x 4.322 x (.000278/360) = 2.096e-5) Next, use this number to convert your measurement of the moon's orbital semi-major axis from arcseconds to AU. A) Calculate a in AU. B) Convert your measurement of the moon's orbital period from days to years. C) By Newton's form of Kepler's third law, calculate the mass of the planet. D) Finally, convert the planet's mass to Earth masses: 1 solar mass = 333,000 Earth masses.Using a 8-m reflector telescope on Mars, what is the maximum distance we could measure using stellar parallax?
- You are trying to take an image of a particular star with apparent magnitude m=10, and need to figure out how long you will need to expose for with your telescope. Your friend tells you that her telescope of diameter 0.07 meters can detect the star in 79 minutes. How long would it take for you to use your telescope (diameter 0.13 meters) to detect a star with an apparent magnitude m=12? (Answer in minutes)1. a) Why is it necessary to have a long baseline when using triangulation to measure the distances to objects in space? b) Of all visible objects in the celestial sphere, which appears to move the least? Why?What is the wavelength of maximum intensity (in nm) and the total energy emitted (in J/s/m2) by a celestial object at 6 K above absolute zero?
- Two identical stars are moving in a circular orbit around one another, with an orbital separation of 2 AU. The system lies 200 light years from Earth. If we happen to view the orbit head-on, how large (diameter) a telescope would we need to resolve the stars at visible wavelengths?What are the effects of atmospheric refraction on the observed position of celestial bodies?Let us imagine that the spectrum of a star is collected and we find the absorption line of Hydrogen-Alpha (the deepest absorption line of hydrogen in the visible part of the electromagnetic spectrum) to be observed at 656.5 nm instead of 656.3 nm as measured in a lab here on Earth. What is the velocity of this star in m/s? (Hint: speed of light is 3*10^8 m/s; leave the units off of your answer) Question 4 of 7 A Moving to another question will save this response. 1 6:59 & backs
- What is the wavelength of maximum intensity (in nm) and the total energy emitted (in J/s/m2) by a celestial object at 6 K above absolute zero?What diameter telescope is needed to resolve the separation between an Earth-like planet and its star at 550 nm if the linear separation between them is 1 AU and the star system is 4 pc from Earth? (Give your answer in m.) musing the center-of-mass equations or the Carter of Mass Calculator (under Binary-Star Basics, abova), you will investigate a specific binary star system. Assume that Star 1 has m, 3.2 solar masses, Star 2 has m,-0.9 solar masses, and the total separation of the two (R) is 34 All (One AU is Earth's average distance from the Sun) (2) What is the distance, d. (In Au) from Star 1 to the center of mass? AU (b) What is the distance, dy On Au) from Star 2 to the center of mass AU ( what is the ratio of d, tod?