opposition surge

There is an opposition surge but it is less pronounced than that of Mercury.

The icy particles that compose the rings also produce a strong opposition surge.

Since Gehrels' early studies, an opposition surge has been noted for most airless solar system bodies.

- The width of the opposition surge.

This phenomenon is called opposition surge.

This result suggests that the principal cause of the lunar opposition surge is shadow-hiding rather than coherent backscatter.

In the case of planetary rings (such as Saturn's), an opposition surge is due to the covering of shadows on the ring particles.

The existence of the opposition surge was first recorded in 1956 by Tom Gehrels during his study of the reflected light from an asteroid.

He coined the term "opposition effect" for the phenomenon, but the more intuitive "opposition surge" is now more widely used.

When phase angles approach zero, there is a sudden increase in apparent brightness, and this sudden increase is referred to as the opposition surge.

Clementine spacecraft data analyzed by J. Hillier, B. Buratti and K. Hill indicate a lunar opposition surge.

And there is no clear evidence yet that the opposition surge has cut into the core constituencies of Government workers and military troops that make up the Sandinistas "mathematical" advantage.

President Robert G. Mugabe's party routed its opponents in parliamentary elections, nearly complete returns showed Friday, dashing forecasts of an opposition surge and solidifying the president's 25-year grip on Zimbabwe politics.

The width of the opposition surge for Mercury indicates that both the compaction state of the regolith and the distribution of particle sizes on the planet are similar to those on the Moon.

The opposition surge (sometimes known as the opposition effect, opposition spike or Seeliger effect) is the brightening of a rough surface, or an object with many particles, when illuminated from directly behind the observer.