A star has a distance of 40 pc. What is the parallax of the 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: 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: A star is observed to have a parallax of 0.05". If we were to send a radio signal towards this star…
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: 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.…
A:
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: 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: 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: 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: 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: 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.…
A:
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…
A:
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…
A:
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: A distant F0 star is 6.3 times less bright than a nearer F0 star which has a parallax of 0.2…
A: Given: p=0.2 arcsec The distance of the distant F0 star from the nearer F0 star is : d=1p=10.2=5…
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: Calculate the absolute magnitude of a star at a distance of 6 pc with an apparent magnitude of 3.
A: The apparent magnitude and absolute magnitude are two terms used to define the brightness of a star.…
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: What is the lifetime on the main sequence of a star whose surface temperature is 6500° K and whose…
A: Denote Stefan’s constant by σ. Evaluate the star’s luminosity (L) from its given temperature (T) and…
Q: A nearby star has a parallax of 0.317 arcseconds. How long does it take the light from this star to…
A:
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: How far, in parsecs, is an object that has a parallax of 1 arc second? How far is it, in light…
A: By the fundamental unit of astronomy; "A star with a parallax of 1 arcsecond has a distance of 1…
Q: A star has an apparent magnitude of 10 and an absolute magnitude of 2.5. How far is it?
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
