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Our set of Venus images and the corresponding movie track the appearance of Venus as viewed from Earth beginning in January 2001. The details of Venus' position and of our imaging for each frame are described in the two tables below. The first table gives the details of Venus' position: the angular diameter of the planet, its distance from earth, its angular distance from the sun, its illumination phase, its brightness, and the elevation above the horizon at the time of the observation. The angular diameter is in units of arcseconds, a sixtieth of a sixtieth of a degree. The distance is in astronomical units (AU), which are defined by the average distance between the Sun and the Earth: 93 million miles. The brightness is in magnitudes, a logarithmic scale in which a change of 0.1 magnitudes is a change of about 10% in brightness, with more negative numbers being brighter.
The second table gives the time of each observation, the duration of each exposure, the filter used, and the name of the observer (Calvin students and faculty).
Content updated 11/29/03 |
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