Neptun

Bildinfo und Lizenz

Bildinfo

• Der Neptun aufgenommen von der Raumsonde Voyager 2: das dunkle Blau kommt durch die Verwendung eines Farbfilters zustande. Tatsächlich ist der Neptun sehr viel heller als hier zu sehen.
  

• This picture of Neptune was produced from the last whole planet images taken through the green and orange filters on the Voyager 2 narrow angle camera. The images were taken at a range of 4.4 million miles from the planet, 4 days and 20 hours before closest approach in August 1989. The picture shows the Great Dark Spot and its companion bright smudge; on the west limb the fast moving bright feature called Scooter and the little dark spot are visible. These clouds were seen to persist for as long as Voyager's cameras could resolve them. North of these, a bright cloud band similar to the south polar streak may be seen.
  

• ^[1] Neptun und Uranus haben eine ähnliche Farbe: "we find that although the visible colour of Uranus is less blue than Neptune, due to the increased aerosol thickness on Uranus, and this difference is greatest at Uranus’s solstices, it is much less significant than is commonly believed due to a long-standing misperception of Neptune’s ‘true’ colour. We describe how filter-imaging observations, such as those from Voyager-2/ISS and HST/WFC3, should be processed to yield accurate true colour representations." In: Patrick G J Irwin, Jack Dobinson, Arjuna James, Nicholas A Teanby, Amy A Simon, Leigh N Fletcher, Michael T Roman, Glenn S Orton, Michael H Wong, Daniel Toledo, Santiago Pérez-Hoyos, Julie Beck, Modelling the seasonal cycle of Uranus’s colour and magnitude, and comparison with Neptune, Monthly Notices of the Royal Astronomical Society, Volume 527, Issue 4, February 2024, Pages 11521–11538, https://doi.org/10.1093/mnras/stad3761
  

Source

• Date: August 1989
  

• Source: JPL image
  

• Author: NASA
  

License

Originalseite

• Das Bild ist Teil eines online-Lexikons.
  

• Rhetos Lernlexikon Mathematik, Aachen:
  

• Siehe unter Neptun ↗