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News Release Archive:

News Release 733 of 950

October 24, 1996 12:00 AM (EDT)

News Release Number: STScI-1996-33

Hubble Makes Movie of Neptune's Rotation and Weather

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Image: Neptune's Blustery Weather in Primary Colors

Neptune's Blustery Weather in Primary ColorsSTScI-PRC1996-33

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ABOUT THIS IMAGE:

These two NASA Hubble Space Telescope images provide views of weather on opposite hemispheres of Neptune. Taken Aug. 13, 1996, with Hubble's Wide Field Planetary Camera 2, these composite images blend information from different wavelengths to bring out features of Neptune's blustery weather. The predominant blue color of the planet is a result of the absorption of red and infrared light by Neptune's methane atmosphere. Clouds elevated above most of the methane absorption appear white, while the very highest clouds tend to be yellow-red as seen in the bright feature at the top of the right-hand image. Neptune's powerful equatorial jet — where winds blow at nearly 900 mph — is centered on the dark blue belt just south of Neptune's equator. Farther south, the green belt indicates a region where the atmosphere absorbs blue light.

The images are part of a series of images made by Hubble during nine orbits spanning one 16.11-hour rotation of Neptune. The team making the observation was directed by Lawrence Sromovsky of the University of Wisconsin-Madison's Space Science and Engineering Center.

Object Name: Neptune

Image Type: Astronomical

Credit: Lawrence Sromovsky (University of Wisconsin-Madison) and NASA