Neptune as seen by Voyager 2.
(Calvin Hamilton)
Dark spots on Neptune during the Voyager 2 flyby of 1989.
(Voyager 2 Team, NASA, apod010821)
Cloud detail as seen by Voyager 2.
Processed to obtain true color balance, but brightness and contrast adjusted for clarity.
(Calvin Hamilton)
Great Dark Spot as seen by Voyager 2.
(Voyager Project, JPL, NASA, apod011201)
Neptune and Triton as seen by Voyager 2, looking back at the planet as it "left" the Solar System in 1989.
At the angle of this view, the sunlight reflected by and transmitted through Neptune's atmosphere is considerably reddened, making it look less blue than usual.
(Voyager 2, NASA, apod010619)
Both hemispheres of Neptune as seen by Hubble Space Telescope, February 1995
(D. Crisp (JPL), WFPC2 Science Team)
Cloud features as seen by HST (high contrast, false color imaging of clouds, in particular)
Images taken October 10 and 18, and November 2, 1994.
(NASA/STScI, and Heidi Hammel (MIT))
False-color image of Neptune, as seen by the HST, in 2002.
Note that it was the same season (Spring) as when Voyager 2 passed the planet, in 1989.
In fact, since Neptune's year is 165 Earth years long, it has been Spring for nearly 40 years -- since the 1960's.
(L. Sromovsky and P. Fry (Univ. Wisconsin - Madison) et al., NASA, apod030613)
Neptune and Triton as seen by the Hubble Space Telescope.
"Almost true color" image of Neptune obtained with the Wide Field Planetary Camera (WFPC).
False but "close" color image of Triton obtained with the Faint Object Camera (FOC).
(Ted Stryk, solarviews)
Neptune's interior: small rocky core, large water/ice outer core, smaller liquid hydrogen mantle.
(Calvin Hamilton, solarviews)
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