opposition

Credit: NASA, ESA, and Amy Simon (Goddard Space Flight Center) et al.

This March is an ideal time to view the largest planet in our solar system, Jupiter. On March 8th, Jupiter, the Earth and the Sun were in a line, an annual event called opposition. This happens when Jupiter is closer to Earth than during other times of the year, making Jupiter appear bigger and brighter.

Saturn at Opposition

Last month on the program we learned that only the five superior planets can be at opposition. The fast movement of our planet’s orbit brings us between those five planets and the sun every year. In April, Mars was at opposition. This month, on Saturday, May 10th, its Saturn’s turn to shine!

Mars At Opposition

Astronomers use a number of curious words to describe the planets in their orbits, for example, quadrature, conjunction, elongation, and ... opposition.