The distance to a binary is 8x107 m and its apparent magnitude is +2. What is its absolute magnitude? Round your answer to two places after the decimal.

Q: Dinary star system is observed orbiting with a period of 20.0 years, at an average distance of 5.0…

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Q: How many times brighter or fainter would a star appear if it were moved to: a. twice its present…

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Q: In a binary star system, the average separation between the stars is 4.0 AU, and their orbital…

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Q: 1. Planet A has an orbital period of 12 years and radius that is 0.033 times the radius of the star.…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: On Earth, the parallax angle measured for the star Procyon is 0.29 arcseconds. If you were to…

A: Write the relation in distance and parallax angle. d=1p

Q: Consider two identical stars, A and B. Star B is 10 times farther away than star A. What is the…

A: Two identical stars A and B are given which are at different distances.

Q: Suppose you measure the parallax angle for a particular star to be 0.4 arcseconds. What is the…

A: The parallax angle for a particular star is given as p=0.4 arcseconds

Q: Calculate the mass of a star having a diameter of 6E5 km and an average density of 1.5 g/cm3.…

A: We have : Density = masscolumeVolume of star = 43x π x r3Diameter of star = 6 x 105kmRadius of star…

Q: If a star has an apparent magnitude of 3.5 and an absolute magnitude of 5, how far away is it?

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Q: O O O 1. Brightness 2. O 3. 4. 1 2 3 The position of the star and the planet on the left correspond…

A: A light curve illustrates the variation in a star's brightness caused by the passage of an exoplanet…

Q: Considering absolute magnitude M, apparent magnitude m, and distance d. Compute the unknown for each…

A: Given: Considering absolute magnitude M, apparent magnitude m, and distance d To determine: a.M if…

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: A star has an apparent magnitude of 10.0 and an absolute magnitude of 2.5. How far away is it?

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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: Given that a pair of stars are found to be orbiting each other with a period of 11.86 [yrs] and a…

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Q: How many light years are in one parsec? (Use at least two significant figures)

A: Distance is Note:Convert the distance in units of .

Q: Which of the following is least reasonable regarding the magnitude scale: Group of answer choices…

A: The magnitude scale in astronomy helps us to quantify the brightness and distance of celestial…

Q: Two stars, named A and B, each with a mass equal to the Sun's mass are in orbit around each other.…

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Q: If we view a star now, and then view it again 6 months later, our position will have changed by the…

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Q: A star has an apparent magnitude of 6 and an absolute magnitude of 3. How far is the star from…

A: The distance of a star can be measured from its absolute and apparent magnitude.    The apparent…

Q: A star has an apparent magnitude of 10 and an absolute magnitude of 2.5. How far is it?

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Q: The light curve (apparent magnitude as a function of time) of the star d-Cephei is 3.5 8-Cephei…

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Q: The figure below shows the radial velocity of a star plotted as a function of time over the course…

A: The radial velocity is a function of time, and also the radial velocity varies simple harmonically…