Spot is a atmospheric vortex high pressure.
Space telescope Hubble received 16 may 2016 pictures huge dark spots on the southern hemisphere of Neptune. This is the first made in the twenty-first century photography of such education on the icy giant. This was reported on the NASA website.
Spot is a atmospheric vortex high pressure, which spread in the gas shell of the planet is accompanied by cloud formations. They consist of ice crystals of methane gas and give the dark color to stain.
The vortex plays the role of the mountain on which is subject to atmospheric flows. On Earth this leads to the formation of orographic clouds, having a lenticular form.
Scientists in the program OPAL (Outer Planet Atmospheres Legacy) was able to track the changing spot size and its movement in the planet’s atmosphere. Similar observations are made for other gas giants (Jupiter, Saturn and Uranus).
Previously, the presence of a large spot on Neptune, scientists suspected after made in 1989 by the automatic station Voyager 2 pictures of the ice giant. Also the education received in 1994 the Hubble telescope. New research has finally confirmed the presence of spots on the planet.
