Either that or it has properties in its light emission that hitherto have never been noted in a closer object.
First, it's more likely that any given galaxy will magnify a distant quasar than a closer object, because the quasar's light travels a much longer path.
The idea was that if you wear glasses to allow you to see clearly in the distance, your eyeball tries to elongate itself when you focus on a close object in order to see it properly.
Do this by looking at a close object, like a pen or pencil and then a distant object in the room.
The translation of such a close-fitting object in a circular tube, and the pressure-driven flows between two surfaces with zero curvature at minimum separation and in a saddle-shaped channel, are considered in a similar fashion.
This dose of discipline can be administered by the use of bare hands or objects such as a switch, a whip or the closest object to the parent.
While some scientists thought his explanation plausible, others were convinced that he saw an optical aberration or a much closer object, like a meteorite in Earth's atmosphere (or, embarrassingly, an airplane passing overhead).
The site has guidelines for the kinds of objects that can be suggested (nothing in the solar system is acceptable for this project, because of the complexities involved in training the Hubble on a close moving object), as well as a link to astronomy education resources for those who do not know the Milky Way from a Mars bar.
For the closest objects, like a star in our Milky Way, it is possible to use trigonometric parallax, by exploiting the way the star's angle on the sky appears to shift as the Earth goes around the Sun.
To reduce the chances that a faster-moving (and thus closer) object be mistaken for the new planet, Tombaugh imaged each region near its opposition point, 180 degrees from the Sun, where the apparent retrograde motion for objects beyond Earth's orbit is at its strongest.
