Examples of using Parallax angle in English and their translations into French
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The angle alpha is the parallax angle.
The parallax angle is obtained by halving the angular difference in measurements.
This is called the parallax angle.
The parallax angle of the closest star system, Alpha Centauri, is 0.755 arc seconds.
The angle is called the parallax angle.
More star is closer,more the parallax angle is large, this angle gives us directly the distance of the star.
This angle of shift is the parallax angle.
The distance from the Sun of a body with a parallax angle of 1 arcsecond was thus defined as a unit and, thanks to Turner, named the parsec.
Exactly half this angle is the parallax angle.
Once the parallax angle is established you can calculate the distance to a star using trigonometry, because we know Earth's distance from the Sun.
More star is closer,more the parallax angle is great.
However, the error of measurement of parallax angle is 0.005 arc seconds, and beyond a distance of 100 parsecs(about 330 light years), this error becomes significant.
The nearest star, α Centauri,has a parallax angle of 0.76.
The parallax angle is found by measuring the parallax motion(or apparent movement of a star relative to stable, more distant stars) when the star is observed from opposite sides of the Sun an interval of six months on Earth.
The difference in the angles of observation is the parallax angle.
In other words, astronomers measure the parallax angle by measuring the position of a star from a position of Earth in its orbit and measure again, six months later, when the Earth is on the other side of the Sun, then it has traveled 300 million km.
Then we have By definition,a parsec is the distance to a star which has a parallax angle of 1.
A parsec is the distance from the sun to an astronomical object which has a parallax angle of one arcsecond 1/3600 of a degree.
Turner's was accepted- parsec being derived from the definition of the unit as the distance from the sun to an astronomical object which has a parallax angle of one arcsecond.
With the parsec defined, deriving anddescribing huge distances became easy, since a distance in parsecs can be calculated as the reciprocal of the parallax angle in arcseconds if the parallax angle is 1 arcsecond, the object is 1 pc from the sun.
To measure the distance of stars relative to each other, Gaia measures the parallax angle of the stars.
That angle is the parallax of the edge of the Moon, viewed from the above two locations.
Separate controls for convergence of optics and the angle of parallax guarantee fully illuminated stereo views in pupils up to 2 mm, as well as viewing in the periphery.
That angle is the parallax of your thumb, viewed from your eyes.
This shift is more orless important with the depth of the objects of the scene but the angle of parallax is the same one for all image disks.
If the dentist suspects close proximity of these structures,it is suggested that 2 periapical radiographs, at different angles(parallax technique), be obtained to ascertain the exact relationship of the premolars to the mental foramina.