what you see in the viewfinder won't be quite what you get in the photograph because of parallax error
he succeeded in measuring the parallax of the star 61 Cygni
Their parts evolve in a kinetic parallax of curves and angles that create a shifting perceptual spectacle.
Other achievements of Aepinus include improvements to the microscope, and his demonstration of the effects of parallax in the transit of a planet across the Sun's disk.
It is easier to see the effect of parallax the closer the foreground object is to you.
The actual contact times for any given observer may differ by up to 7 minutes due to the effects of parallax .
The work on double stars had been undertaken as a continuation of his father's work which attempted to measure the parallax of a star.
Each element was then centered in the lens to decrease distortion from lens curvature or parallax .
An improved configuration uses a splitter mirror to eliminate the effects of parallax but not the differences in lenses.
To measure the parallax , Bradley intended to make a series of observations, noticing how it moved against the background.