g baseline
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: 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: Why are there few visual binaries with orbital periods of a few years or less?
A: A binary star system is formed when two stars are close enough to form an orbit around their…
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: Considering that Earth experiences an average intensity of sunlight of 1330 W/m? and is at a…
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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: The total intensity of light measured on earth, from an ecliptic binary, is plotted in the figure as…
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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: calculate the magnibude of Tan Leonis and declination using these. proper ascension values in right…
A: We have to solve for this expression
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: Two identical stars are moving in a circular orbit around one another with an orbital separation of…
A: The Hubble Space Telescope or HST is a space telescope placed in the low Earth orbit. It has a 2.4 m…
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.
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,…
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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