A star has apparent magnitude 10.0 and absolute magnitude 2.5. How far away is it?
Q: Use a diagram to explain what is meant by the parallax angle, p, for a star observed twice from…
A: Diagram for explaining parallax angle: o star / \…
Q: A star is observed to cross the meridian at an elevation of 67°, as seen from an observatory at a…
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Q: 8) Star A has an apparent magnitude of 2.5 and star B has an apparent magnitude of 3.9. Calculate…
A: When studying stars astronomers use two different magnitudes, apparent and absolute magnitude.…
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: What is the most common type of star?
A: There are different types of stars in our universe. They are mainly categorized based on their mass,…
Q: What is the surface temperature of a star that emits light with a wavelength of 400 nanometers?
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Q: If star B is a 5th magnitude star and star C is 9th magnitude, what is their brightness ratio? Light…
A: Apparent magnitude of the star m is the measure of brightness of star from earth. Brightness is also…
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: A star is observed at a distance of 90 pc. What will be its parallax angle?
A: Parallax is defined as the change in the apparent position of an object due to a change in 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: The apparent magnitude of a star is (4.3) and the parallax angle is (0.161) arcseconds. The absolute…
A: The absolute magnitude of a star is given by the formula, M=m-5 log10D10 where D is distance of 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: Which of the following spectral classes has stars with the hottest temperature? a. F0 b.…
A: Here given the stars with spectral classes.We have to find the stars which is hottest.
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: The apparent magnitude of a star is (4.3) and the parallax angle is (0.161) arcseconds. The absolute…
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Q: The star Sirius has an apparent magnitude of -1.46 and appears 95-times brighter compared to the…
A: Part a: Magnitude in astronomy is defined as an index for the brightness of a star and is denoted by…
Q: .
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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: Given star A with apparent visual magnitude mv = 6.5, and star B with mv = 4.4, what is the flux…
A: Given, star A with apparent visual magnitude mA = 6.5, and star B with mB = 4.4, the flux ratio…
Q: Star 1 and star 2 have the same V-magnitude, V = 7.5. However, they have different B-magnitudes, B1…
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Q: You see a blue star directly over Avalon's equator. It appears to be moving north at 5.0 arcseconds…
A: Given: The star moves north at 5.0 arcseconds per year. To determine: The distance of this star from…
Q: A star has a luminosity (power output) of 9.2x1026 W and a diameter of 6.1x108 m. What is its…
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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: Your instrumental magnitude of a standard star is 23.0 and the catalog magnitude of th star is 22.0.…
A: Given, instrumental magnitude of star= 23.0 catalog magnitude of star = 22.0 Assumed zero point=…
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: Explain how the brightness of a star can be used to estimate its distance from Earth.
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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: A star has a distance of 20 pc. What is the parallax of the star?
A: Stellar parallax is defined as the apparent change in an object's position due to a change in the…
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…
Q: A star"s position in the sky against distant background objects has shifted by 0.4" in 6 months it…
A: Given: shift, 0.4'' in 6 months To Find: (a) stellar parallax p of star (b) distance of star from…
Q: nitude m = 3.6. What is the apparen
A: Given: To find the magnitude of the dimmer star is calculated shown as: m2 =3.6,b1b2 =12.4
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