Checked content

File:Neptune's Great Dark Spot.jpg



Neptune's Great Dark Spot, a large anticyclonic storm similar to Jupiter's Great Red Spot, observed by NASA's Voyager 2 spacecraft in 1989.


This photograph shows the last face on view of the Great Dark Spot that Voyager will make with the narrow angle camera. The image was shuttered 45 hours before closest approach at a distance of 2.8 million kilometers (1.7 million miles). The smallest structures that can be seen are of an order of 50 kilometers (31 miles). The image shows feathery white clouds that overlie the boundary of the dark and light blue regions. The pinwheel (spiral) structure of both the dark boundary and the white cirrus suggest a storm system rotating counterclockwise. Periodic small scale patterns in the white cloud, possibly waves, are short lived and do not persist from one Neptunian rotation to the next. This colour composite was made from the clear and green filters of the narrow-angle camera. The Voyager Mission is conducted by JPL for NASA's Office of Space Science and Applications.

Date 25 August 1989
Author NASA / Jet Propulsion Lab



Public domain This file is in the public domain because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
NASA logo.svg
  • Use of NASA logos, insignia and emblems are restricted per US law 14 CFR 1221.
  • The NASA website hosts a large number of images from the Soviet/ Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
  • Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI. See also {{ PD-Hubble}} and {{ Cc-Hubble}}.
  • The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use.
  • Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted.
The following pages on Schools Wikipedia link to this image (list may be incomplete):

Did you know...?

SOS Childrens Villages aims to make Wikipedia suitable for young learners. By supporting vulnerable children right through to adulthood, SOS Children makes a lasting difference to the lives of thousands of people. Education is a key part of our work, and our schools provide high-quality teaching to the children in our care. Why not try to find out more about sponsoring a child?