How far away is the star Spica, whose parallax is 0.0130?
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: 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: 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: 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: Explain the principle of a synchrotron.
A: Synchrotron is a device that is used to accelerate the circular velocity of the particle.
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: 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: 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: 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: 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: I 19 14: = 24.88 mas y-¹ lota Psc has a magnitude of proper motion of 2 = (Ha*)² + (Hg) ² =…
A: GivenWhat is the magnitude of proper motion for lota psclota Piscium is single, F-type main…
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: is
A: The relationship between apparent visual magnitude(m), Absolute visual magnitude(Mv) and distance(d)…
Q: is 0.218 arcseconds, then the distance of the body from the Earth in astronomical units is * O…
A:
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: 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: 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: Star A has an apparent magnitude of -1. Star B has an apparent magnitude of 3.5. Find BĄ/BB, where…
A:
Q: How many light years are in one parsec? (Use at least two significant figures)
A: Distance is Note:Convert the distance in units of .
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: 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: An object was discovered on Feb. 24.37 UT (position R.A. = 5h35m.8, Decl. = -69 18'), obtained m =…
A: Absolute magnitude and apparent magnitude of any stellar object are related as M=m-2.5logd102M is…
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: A star has a distance of 40 pc. What is the parallax of the star?
A: The distance of a star and its parallax are related as, d=1/p, where, d= distance in parsecs, and…
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…
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