8) Star A has an apparent magnitude of 2.5 and star B has an apparent magnitude of 3.9. Calculate the ratio IA/IB.

Q: 31) Star Betelgeuse has an apparent magnitude of 0.42 and an absolute magnitude of -5.6. Estimate…

A: The distance magnitude formula relates the apparent and absolute magnitude of a celestial object…

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

A: The order of the stars in order of declining brightness is given as,  -1,0,3,7,15

Q: 6) Estimate the distance to the star Aldebaran with absolute magnitude -0.641 and apparent magnitude…

A: The absolute magnitude is the magnitude of a celestial object if it was observed from a distance of…

Q: If a star is located at 62.5 pc and has an apparent magnitude of 6 what is it absolute magnitude?

A: The brightness of a star is determined by its composition and distance from the Earth. There are two…

Q: 29) Estimate the distance to the North Star if it has an absolute magnitude of -3.2 and an apparent…

A: In astronomy when studying a star or any celestial object we use two different magnitudes. Apparent…

Q: A star has a parallax of 0.8 seconds of arc. What is the distance of the star?

A: Parallax can be defined as the change in the position of an object due to a change in the observer's…

Q: 13) Calculate the luminosity in watts from the absolute magnitude for the given stars: (a) Vega (M =…

A: The energy radiated per unit of time by an astronomical object is called luminosity.   The…

Q: How far away would the Sun need to be to be just visible to the naked eye (apparent magnitude =…

A: Solution: Given that apparent magnitude, m = 5.90 the absolute magnitude of the Sun, M = 4.83

Q: January 1st July 1st * * * Star A- Star Consider two pictures of the same part of the sky taken 6…

A:

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

A:

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: According

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

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

A:

Q: Sirius, the brightest star in the sky has a parallax of 0.379 arcsec What is its distance in…

A:

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: is

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

Q: Star A has an apparent magnitude of –1.5 and is 12.6 light-years from Earth. Star B has an apparent…

A: Given: dA=12.6ly=3.863parsec, dB=15.6ly=4.783parsec, mvA=-1.5, mvB=0.4 The apparent magnitude of a…

Q: Calculate the distance of a star if the stellar spectrum indicates an absolute magnitude of -10.0,…

A: Given,Absolute magnitude, M =- 10Apparent magnitude, m = 5From magnitude distance formula,m -M = 5…

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: You measure a star to have a parallax angle of 0.04 arc-seconds. What fraction of a degree is this?

A: Given 0.04 arc second=....°

Q: Calculate the absolute magnitude of a star at a distance of 6 pc with an apparent magnitude of 3.

A: The apparent magnitude and absolute magnitude are two terms used to define the brightness of a star.…

Q: Which of the following is largest? the size of a typical star. 1 AU. the size of the earth. 1…

A: Required : Which of the following is largest. 1)The size of a typical star.2) 1 AU.3) The size of…

Q: 5. The Luyten 762-8 star system contains two stars, one with apparent 12.5 and the other with m =…

A: Given :  mVega =0 , m1 = 12.5 and m2 =12.9 Concept : mVega - m = 2.5 log(L/LVega)

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

A: The parallax is given by

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: 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

Q: A first-magnitude star is 100 times brighter than a sixth magnitude star, which means each…

A: Answer:  It is given that a first-magnitude star is 100 times brighter than a sixth magnitude star,…

Q: 14 Suppose you see two main-sequence stars of the same spectral type. Star 1 is dimmer in apparent…

A: We know apparent magnitude(m) is related Radiant flux (F): F2F1=100(m1-m2)/5And…

Q: 1. Sirius A has an apparent magnitude of 4.72, determine its luminosity.

A: Please see the next step for solution:-

Q: If a star has a parallax of 0.050 arc second, what is its distance in pc?

A: Parallax is one of the methods used to calculate the distance between Erath and distant stars.…

Q: 3- Consider a binary star system in which the two stars are seen to be 1.50" apart. Determine the…

A:

Q: A star with a trigonometric parallax of .02 arcseconds has a distance of O 2.0 light years. O 50 pc.…

A: Parallax angle p= 0.02 arcsecounds1 parsec = 3.26 light years