Find the distance in parsecs to Vega, which has an annual parallax of 0.129 arcsec.

Q: Why would it be easier to take parallax measurements if we were on a planet farther from the sun…

A: Parallax is the apparent shift in the position of a star when viewed from two…

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: Which of these will the Sun probably become in the very distant future? (choose all that apply)…

A: In about 5 billion years, sun will burn up all of the hydrogen in its core, it will swell into a red…

Q: Explain the term light years?

A: A light year is a unit used to measure very long distances like the distance between galaxies or…

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Q: Assuming Proximus B orbits Alpha Centauri C at distance equal to the distance the earth orbits the…

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Q: If the parallax angle of a star is 0.5", what is the star's distance in light years and kilometers?

A:

Q: A star 2.5 times the mass of the sun and collapsed to a size of 12 km rotates with a speed of 1.2…

A: Gravitational acceleration is,

Q: How far away is the star Spica, whose parallax is 0.013"?

A: Given Data: The parallax of the star Spica is, p=0.013’’   The expression for the distance in terms…

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: If the parallax angle of a star is (0.369) arcseconds, then the distance of the star from the Earth…

A: Using the relationship between the parallax angle and distance of the star and the earth is given…

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: Explain Parallax

A: There is an apparent shift in position of the object due to the change in point of observation .This…

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: 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: 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: 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: The energy in Joules per second (J/sec) falling on one square meter is defined as   a. absolute…

A: The apparent brightness of an object that appears to the human eye is known as Luminance. What we…

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: To approximate the distance from the Earth to stars relatively close by, astronomers often use the…

A: Given : Distance between the Earth and the Sun, SE = 92,900,000 mi Parallax angle, p = 0.033 arcsec…

Q: A Cepheid variable has a period of 17 days and an average apparent magnitude of 23. Find its…

A: Given, Period = 17 days Apparent magnitude = 23 Absolute magnitude = 4.83 By the distance modulus…

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: If a star is 30 parsecs away what is it's observed parallax shift ?

A: Given thatThe distance to the star (d)=30 parsecsParallax Formulad=1pp=the parallax angle of the…

Q: What is the dependence of the intensities of stars on parallax? Hint: consider the inverse-square…

A:

Q: is

A: The relationship between apparent visual magnitude(m), Absolute visual magnitude(Mv) and distance(d)…

Q: If the parallax angle of a body is 0.218 4 points arcseconds, then the distance of the body from the…

A: parallax method is useful to measure larger distance. For example distance between earth and sun,…

Q: between january and july , Star appears to move 5 degrees while star b appers to move 7 degress…

A: From January to July, in the span of 6 months, the 2 stars - A & B, are observed. Star A…

Q: What is the parallax of a star that is 150 pc from Earth?

A: The parallax is given by

Q: A nearby star, Proxima Centauri , has a parallax of 0.772  arcseconds. How long does it take the…

A:

Q: How do you calculate the mass of a star?

A: To calculate mass of a single star is a difficult process however to calculate the mass of binary…

Q: Over the course of 6 months, a star's parallax angle is measured to be 0.083 arcseconds. What is the…

A: Given that, Parallax angle = 0.083 arcseconds

Q: A less massive star will usually live longer than a more massive star O True O False

A: In star hydrogen is the fuel

Q: How much stronger does a magnitude 8.2 to a 5.0 magnitude?

A: Given that                           Magnitude(M1 ) = 8.2                           Magnitude(M2) =…

Q: Find the distance in parsecs to Proxima Centauri, which has an annual parallax of 0.772 arcsec.

A: We need to find distance in parsecs

Q: Stars are spherical in shape. A star has a diameter of 77 x 1010 m. How many earths could fit inside…

A: The volume of a sphere can be given as, Here, R is the sphere’s radius. In terms of diameter, the…

Q: What is the parallax of a star that is 13.00  light-years away?

A: The parallax is an methond to calculate the distance between the objects in universe. It is based on…

Q: The bright star Sirius has a parallax angle of 0.38 arcsec. Find the distance in parsecs and in…

A:

Q: Light year is the unit of ___________

A: solution as