A star is observed at a distance of 90 pc. What will be its parallax angle?
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: 6. |A visual binary has a parallax 00 = 0.4 arcsec, a maximum separation a00 = 6.0 arcsec, and an…
A:
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 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: If a star has a parallax angle of 0.768" and the width of your pinky is about 1 degree, what…
A: Parallax method is used to find the distances of distant objects. Parallax can be understood with…
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: 13.169 The river flows north at 3 m/s. (Assume that the current is uniform.) If you want to travel…
A: The velocity of river is given as, vriver=3 m/s of north, The velocity of the boat relative to water…
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: A star is observed to have a parallax of 0.05". If we were to send a radio signal towards this star…
A:
Q: At rest hydrogen has a spectral line at 149nm. If this line is observed at 144nm for the star…
A: Given:hydrogen spectral line at rest, λs = 149 nmobserved spectral line, λ = 144 nmAsked:What is the…
Q: An astronomical image shows two objects that have the same apparent magnitude, i.e., the same…
A: Let the luminosity of the star is Ls= LoLuminosity of Milky Way galaxy, Lm=1011LoLuminosity of…
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: 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: Question A1 a) The Large Magellanic Cloud (LMC) is a galaxy in the vicinity of the Milky Way. It is…
A: Solution/Calculation: a) The Large Magellanic Cloud (LMC) is a galaxy in the vicinity of the Milky…
Q: Hertzsprung-Russell Diagram
A: In the sky, there are many groups of stars. Some of them are small. while some of them are large.…
Q: Find the speed for a star in which this line appears at wavelength 122.5 nmnm.
A: Given wavelength = 122.5 nm Hydrogen transition wavelength = 121.6 nm Speed of light is c = 3×108…
Q: Favorite Star Polaris is 132 pc from Earth and has an apparent magnitude of 2.5. What is its…
A: When the brightness of a star is measured there are two ways, Apparent and absolute magnitudes.…
Q: A telescope on Earth is taking measurements of a nearby star six months apart. The telescope is…
A: Given: A telescope on Earth is taking measurements of a nearby star six months apart. The telescope…
Q: Two cars of masses mį and m2 collide at an intersection. Before the collision, car 1 was traveling…
A: Apply momentum conservation in x-direction. m1v1=m1+m2vcosθvcosθ=m1v1m1+m2 ...... (1)
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: 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: 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: 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)…
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- You measure a star to have a parallax angle of 0.04 arc-seconds. What fraction of a degree is this?A star is observed to have a parallax of 0.0015". What is the distance to the star in units of AU?Star A is located 5 times further from Earth than Star B. Star B has a 0.020 arc second stellar parallax. How far from Earth (in pc) is Star A?
- What is the parallax of a star that is 150 pc from Earth?If a binary star system has a 0.1M⊙ star and a 10.0M⊙ star with a measured periastron and apastron of 40 and 80 AUs, respectively, calculate the orbital period in years of the binary star system. Be sure to show all work!A nearby star has a parallax of 0.317 arcseconds. How long does it take the light from this star to reach us?
- 17 Which of the following statements about parallax is not true? A You can demonstrate parallax simply by holding up a finger and looking at it alternately from your left and right eyes. B C D The existence of stellar parallax is direct proof that Earth orbits the Sun. Measurement of stellar parallax allows us to determine distances to nearby stars. The technique of stellar parallax was used by Hubble to determine that the Andromeda Galaxy (M 31) is about 2 million light-years away. Ancient astronomers were unable to measure parallax and used the absence of observed parallax as an argument in favor of an Earth-centered universe.A star has a distance of 40 pc. What is the parallax of the star?The center of our Galaxy is about 7500 parsecs from Earth. What would be the parallax angle of a star near the center of the Galaxy? Could this angle be measured with current technology?
- If a star has a parallax of 0.050 arc second, what is its distance in pc?A star with a trigonometric parallax of .02 arcseconds has a distance of O2.0 light years. 50 pc. 4 kpc. 20 pc. O need more information (magnitudes)Time left 1:45:56 A star has initially a radius of 680000000 m and a period of rotation about its axis of 33 days. Eventually it changes into a neutron star with a radius of only 45000 m and a period of 0.3 s. Assuming that the mass has not changed, find Assume a star has the shape of a sphere. (Suggestion: do it with formula first, then put the numbers in) [Recommended time : 5-8 minutes] (a) the ratio of initial to final angular momentum (Li/Lf) Oa. 2.17E+15 Ob. 24 Oc. 0.0416 Od. 4.61E-16 (b) the ratio of initial to final kinetic energy Oa. 4.85E-23 Ob. 396000 Oc. 2.53E-6 Od. 2.06E+22