Calculate the apparent magnitude of the Sun.
Q: What is the distance in parsecs to Vega, which has an annual parallax of 0.129 arcsec.
A: Annual parallax (p), p=0.129 arcsec
Q: Astronomers often measure large distances using astronomical units where 1 is the average distance…
A: θ = 0.00001389 degrees
Q: Absolute visual magnitude is a. the apparent magnitude of a star observed from Earth. b. the…
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Q: Earth is about 150 million kilometers from the Sun, and the apparent brightness of the Sun in our…
A: Distance of earth from sun, dE = 150 x106 km Apparent brightness of sun at earth distance is BE =…
Q: Why can’t astronomers use parallax to measure the distance to stars that are extremely far away?
A: Because it is difficult to measure from earth reason is effects of earth atmospheric. Parallel angle…
Q: In the parallax method of determining stellar distances, the angle to a star is measured while che…
A: Let's assume b=1AU And distance between sun and alpha centaurie is d. θ=2.1x10-4…
Q: What is the approximate angular seperation between the star Antares and the moon? 15 degrees 30…
A: Antares has the brightest light and it is far away from earth. It is called red supergiant star and…
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: The velocities of the two stars are 28km/s and 13km/s, and their periods are both 16 years. Find the…
A: Formula Let period of a star is T, velocity is v, orbital radius is r and , mass is M, Now the…
Q: Star X has an apparent magnitude of 0.03 and an absolute magnitude of 0.6. If it were moved to be…
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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: 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: Considering that Earth experiences an average intensity of sunlight of 1330 W/m? and is at a…
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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: What is the apparent magnitude of the Sun as seen from Venus at perihelion? What is the apparent…
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Q: The star Spica is observed to have a parallax of 0.012000. How far away is it in parsecs answers to…
A: Parallax is the change in the apparent position of the object that results from a change in…
Q: Suppose a star has a luminosity of 7.0x1026 watts and an apparent brightness of 4.0×10-12 watt/m?.…
A: Luminosity of star (L) = 7×1026 watt Apparent brightness (AB) = 4×10-12 Wm2
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?
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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: If a star has an apparent magnitude equal to its absolute magnitude, how far away is it in parsecs?
A: Given that :Apparent magnitudemp=Mv
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: 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: How many times dimmer is a star with magnitude +3 compared with the planet Mars with a magnitude of…
A: The magnitude of star is +3, and that of Mars is -1.
Q: Raising a number in scientific notation to a power is easy: (5 x 105)2 = (5)² x (105)2 = 5 x 5 x 105…
A: Given data: Radius of sun (R) = 7×105 km Mass (m) = 2.0×1030 kg π = 3.14 Required: The volume in…
Q: Star A has an apparent magnitude of -1. Star B has an apparent magnitude of 3.5. Find BĄ/BB, where…
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Q: A star has a parallax of 0.2 seconds of arc. What is the distance of the star?
A: The change in the apparent position of an object with a change in position of the observer is called…
Q: If a certain star is 4 times as hot as the sun and is 10000 times brighter than the sun, calculate…
A: Given, Temperature of star, TA=4xTE, Luminosity of star, LA=10000x LE.
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: 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: What is the apparent magnitude of the sun as seen from Saturn about 10 AU away? Appear to magnitude…
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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: 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: Could you find the Mass of the Sun using the slope of the of T2 versus a3, using the values that are…
A: According to Kepler's law, the relation between the period of the planet and the semimajor axis of…
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 nearby star has a parallax of 0.317 arcseconds. How long does it take the light from this star to…
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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: Calculate the distance of a star if the stellar spectrum indicates and absolute magnitude of -10 and…
A: The given data are listed below with suitable variables. Here, M denotes the absolute magnitude and…
Q: Star A is 4 magnitudes brighter than star B. How does the apparent brightness of star A compare with…
A: The magnitude of a star is a measure of how bright the star or a celestial body is. Lower the…
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