You measure a star to have a parallax angle of 0.12 arc-seconds. What fraction of a degree is this? By how many times would you have to magnify this effect for it to be visible to the human eye? (The limit of human vision is about 1 arc-minute)

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: Which of the following is least reasonable regarding a star's position on the HR diagram? Group of…

A: "White dwarfs are small and cool and are located in the lower left part of the HR diagram."This…

Q: If parallax of a star is 0.22 arc-seconds and its apparent brightness is 50 x 10-6 W/m2 . What is…

A: Given: Apparent Brightness,b=50×10-6W/m2Parallax of star,p=0.22arc-secondsDistance to the…

Q: One of the closest stars to the sun has a parallax of 0.5 arcseconds. What is the distance to this…

A: Closest star to the sun has: Parallex=0.5 arcsecond We define distance 'd' to a star is reciprocal…

Q: What star has the largest stellar parallax as measured from opposite ends of the Earth's orbit about…

A: Parallax is the apparent displacement of an object because of a change in the observer's opinion.…

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: If a star has a parallax of 0.016 arc second how far is it?

A: Parallax is the shift in the apparent position of stars when observed from different positions. This…

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: According

A: There is a simple relationship between a star's distance and its parallax angle: d = 1/p The…

Q: Two stars have the exact same luminosity, but star Y is four times dimmer looking that star X. This…

A: Basic Details Two stars star X and star Y have same luminosity. The brightness of the star is…

Q: If a star's absolute magnitude value is significantly larger than its apparent magnitude value…

A: Absolute magnitude Mv: The magnitude that a star is expected to have if it were at a distance of 10…

Q: A distant FO star is 6.3 times less bright than a nearer FO star which has a parallax of 0.2 arcsec.…

A:

Q: What is the dependence of the intensities of stars on parallax? Hint: consider the inverse-square…

A:

Q: The greatest parallax angle of any star outside our solar system as viewed from Earth is Group of…

A: 1)We know that the parallax angle for the distant star is smaller, and the parallax angle for the…

Q: is

A: The relationship between apparent visual magnitude(m), Absolute visual magnitude(Mv) and distance(d)…

Q: Star A has an apparent magnitude of 3.0, and Star B has an apparent magnitude of 6.0. Which star…

A: Given that the magnitude of apparent value of A is 3 and the magnitude of apparent value of B is 6.…

Q: A certain star is 13.7 times dimmer than a star with apparent magnitude m = 3.9.  What is the…

A: We are given the ratio of brightness of stars. We are given the apparent magnitude of the brighter…

Q: Two stars have the same apparent magnitude, my = 14, but Star A has a parallax of 0.060 arc seconds…

A: Required to compare two stars A and B

Q: Stars A, B, C, D, and E have apparent magnitudes of 7, 3, -1, 15, and 0, respectively.   1) Which…

A: Here, Apparent Magnitude of Star  A=7 B=3 C=-1 D=15 E=0

Q: Use the Luminosity Distance Formula. Find the distance to a star (L=2.2x1026 watts) whose apparent…

A:

Q: A distant F0 star is 6.3 times less bright than a nearer F0 star which has a parallax of 0.2…

A: Given: p=0.2 arcsec The distance of the distant F0 star from the nearer F0 star is : d=1p=10.2=5…

Q: Absolute magnitude 7 -6 5 4 3 2 7 0 Based on the figure, M = 0.3 & Cephel- kpc Type (classical)…

A: Given, The pulsation period, P=16hrP=1624daysP=0.67days Angular distance,θ=20arc minθ=20×60206265arc…

Q: Stars A and B both have the same spectral class. Star A is 7 times farther away than star B. The…

A: Consider the brightness of the stars A and B be FA and FB, respectively, these luminosities be LA…

Q: A star is observed to have a parallax of 0.0015".  What is the distance to the star in  units of AU?

A: The distance to the star can be calculated using the formula: distance (in parsecs) = 1 / parallax…

Q: Star A is located 5 times further from Earth than Star B. Star B has a 0.020 arc second stellar…

A: How far from Earth (in pc) is Star A? given, Star A is located 5 times farther from Earth than Star…

Q: What is the parallax of a star that is 150 pc from Earth?

A: The parallax is given by

Q: A nearby star has a parallax of 0.317 arcseconds. How long does it take the light from this star to…

A:

Q: How do you calculate the mass of a star?

A: To calculate mass of a single star is a difficult process however to calculate the mass of binary…

Q: A star has a distance of 40 pc. What is the parallax of the star?

A: The distance of a star and its parallax are related as,   d=1/p, where, d= distance in parsecs, and…

Q: Compute the distance to the following stars using the luminosity-distan relationship: m-M=5 log (d)…

A: Apparant Magnitude (m) = 9.95Absolute Magnitude (M) = 0.75