A star has a parallax of 0.8 seconds of arc. What is the distance of the star?
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…
A:
Q: 4. Alpha Siruis is 3.9 x 1015 miles away from the Earth. Calc the parallax at which the star is…
A: The distance between Alpha Sirius and Earth is given as, d=3.9×1015 miles. TO DETERMINE: The…
Q: A star has a parallax angle of 0.0270 arcseconds and an apparent magnitude of 4.641. The distance to…
A: Write the equation relating Luminosity Lsn and Lst to the absolute magnitude Msn and Mst of sun and…
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 lifetime on the main sequence of a 2-solar-mass star? a. 1.8 × 1011 years b.…
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Q: Find the distance in parsecs to Vega, which has an annual parallax of 0.129 arcsec. pc
A: It is given that,
Q: Find the distance in parsecs to van maanen's star, a nearby white dwarf, which has an annual…
A: given , parallax (p) = 0.232 arcsec
Q: The red supergiant star in Orion is called Betelgeuse, and its distance is 130 pc. What is the…
A: Parallax is the defined as the apparent shift in the position of any star (or other object) against…
Q: Which star in the table below has the greatest diameter? Star Name d (parsecs) Parallax…
A: d. 58 Ori
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: 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: Which star in the table below has the least surface temperature? Star Name d (parsecs) Parallax…
A: Since, distance of the star in terms of Parallax is, d=1parallax (in arc-sec)parsecs Now from…
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 a distance of 1 parsec away has a parallax angle of 1 definition. by arcsecond arcminute…
A: A parsec is defined as the distance to a star which has a parallax angle of 1 arcsecond.
Q: A star has an apparent magnitude of 10.0 and an absolute magnitude of 2.5. How far away is it?
A:
Q: A star is observed to have a parallax of 0.05". If we were to send a radio signal towards this star…
A: The parallax angle of a star is observed to be θ=0.05''=0.05 arcseconds. Let the distance to the…
Q: What is the dependence of the intensities of stars on parallax? Hint: consider the inverse-square…
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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: 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: If a star has a parallax of 2 x 10 degree, how far away is it? O 7 pc O 14 pc O 28 pc O 5x 104 LY
A: Given, parallax angle θ=2 x 10-5 degree θ=2 x 10-5 x 3600…
Q: Two stars are found to orbit each other once every 6.00 months. If the orbital radius (distance)…
A: According to Kepler’s third law, for a binary star system, we have the following relation between…
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: The star Firefly is located 3.0 pc away. If it had an absolute magnitude of 13.0, which value below…
A: Write the given data. d=3AbsM=13
Q: You observe a star with an apparent magnitude mv=12 at a distance of 1 kiloparsec. What is this…
A: The relation between apparent magnitude, absolute magnitude, and distance of star in parsec is given…
Q: Star A and Star B are a bound binary at a distance of 20 pc from the Earth. Their separation is 30…
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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: 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: How far away is the star Spica, whose parallax is 0.0130?
A: When an observer's point of view changes the displacement observed for an object is called as…
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: 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: τ Ceti is 11.9 ly away. How many arc seconds of parallax will it have?
A: Given: Distance of τ Ceti is d=11.9ly.
Q: A star has an apparent magnitude of 10 and an absolute magnitude of 2.5. How far is it?
A:
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
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: 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
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