Kordylewski cloud

The Kordylewskischen clouds are dust clouds in the Lagrangian points L4 and L5 of the Earth-Moon system. They should consist of gas and dust particles down to a size of several centimeters. However, the existence of Kordylewskischen clouds is not independently verified.

Discovery

The Polish astronomer Kazimierz Kordylewski had observed in 1956 for the first time visually very faint, nebulous objects, which had an incidence of 2 ° and half the brightness of the light bridge between the zodiacal light and Gegenschein. In 1961 he photographed the alleged clouds, which had now apparently changed their extent and shape. 1967 observed J. Wesley Simpson Kuiper Airborne Observatory by means of similar properties. 1975 dismissed the spacecraft orbiting Solar Observatory 6 also by misty structures.

The current existence of Kordylewskischen clouds is controversial among astronomers. Due to the low brightness of the clouds are very difficult to prove.

If the clouds actually have an area of ​​2 °, they would have a diameter of at least 14,000 km have, which corresponds approximately to the diameter of the earth.