A star has a distance of 40 pc. What is the parallax of the star?
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: Two stars are in a binary system. One is known to have a mass of 0.700 solar masses. If the system…
A:
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: We can use the parallax equation to determine the distances (in pc) to the stars. 1 dA da dB dB = =…
A: From the given related question,we have,mv = 14Parallax of star A = 0.060 arc secondsParallax of…
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: f a star’s lifespan is 1.1 × 10 7 years, what is its mass and spectral type?
A: The relation between star's lifetime and mass is given by : tt⊙=MM⊙−2.5Here, M⊙ is mass of sun.…
Q: Why are Earth-based parallax measurements limited to the nearest stars?
A: Parallax is one of the methods used by astronomers to estimate the distance to stars and other…
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: Orion nebula is located at 450 pc. Calculate the parallax angle.
A: Parallax is a method used to calculate the distance to astronomical objects like stars. Parallax is…
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: Two stars are in a binary system. One is known to have a mass of 0.700 solar masses. If the system…
A:
Q: What is the distance in light years from Earth to a star that makes a parallax angle of 2.0 arc…
A: Given parallex(p)=2 arc second
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: 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: 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: 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: Find the distance in parsecs to Vega, which has an annual parallax of 0.129 arcsec. pc
A: It is given that,
Q: What type of star has the longest life span? a. O b. K c. B d. A e. M
A: What type of star has the longest life span?
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: 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: 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: 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: What is the maximum luminosity for star of 5.76×1010 Msun.
A: In hydrostatic equilibrium, the radiation pressure and gravitational force will balance each other.…
Q: V B r 10.401 10.894 12.303 9.459 9.656 9.477 11.635 12.744 11.229 i 9.705 9.661 10.837 Parallax…
A: Given as,
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 parallax angle of a star to be 0.002 arc-seconds. what would the distance be to this star?
A: Given, Parallax angle, p=0.002 arc-seconds
Q: An O8 V star has an apparent magnitude of +2. Use the method of spectroscopic parallax to estimate…
A: The apparent magnitude m of the star is given to be m=+1. From HR absolute magnitude M of a star…
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: 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: A distant FO star is 6.3 times less bright than a nearer FO star which has a parallax of 0.2 arcsec.…
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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: 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: 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: 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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