Lick
Observatory, Mt.Hamilton, California
W.
M. Keck Observatory,
Hawaii
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Lick
Observatory, Mt.Hamilton, California
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W.
M. Keck Observatory,
Hawaii
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HST and Keck AO Observations of Jupiter in May 2008
We observed Jupiter with HST on UT 9 and 10 May 2008, and with the Keck adaptive optics system on UT 11 May 2008.
False color cylindrical map of Jupiter, constructed from a set of images of the planet obtained with the WFPC2 on the Hubble Space Telescope. Individual frames were obtained on UT May 9 and May 10, 2008. The images were deprojected and mosaiced together. The map shows latitudes between +/- 70 deg. The resolution is a quarter degree in latitude and longitude. Images were combined at 673, 502, and 410 nm, as red, green and blue colors.
Credit:Michael Wong and Imke de Pater (UC Berkeley)
Close-up of the three ovals, constructed from deprojected images at 673, 502 and 410 nm, using red, green and blue colors for the different filters, respectively. See HST website
Close-up of the three ovals, constructed from deprojected images at 673, 502 and 410 nm on the left, and 502, 410 and 336 nm on the right, using red, green and blue colors for the different filters, respectively.
Credit: Michael Wong and Imke de Pater (UC Berkeley)
[Left]: A false-color composite near-infrared image of Jupiter and its moon Europa, taken on 11 May 2008 at (~15:00 UT ) with the Keck II telescope on Mauna Kea. Adaptive optics (AO) techniques were used to sharpen the image. This image is constructed from data obtained though narrow band filters centered at 1.58 (red), 1.29 (green), and 1.65 (blue) micron. High altitude haze above the polar hood makes the planet blue here. In the upper right corner is Europa, which moved slightly with respect to Jupiter during the observations.
The images at 1.29 and 1.58 microns detect sunlight reflected off Jupiter's upper cloud deck - the same clouds that are seen in visible light. The narrow band image at 1.65 micron (shown in blue) shows sunlight reflected back from hazes lying just above these clouds The image was further sharpened using the RegiStax software, developed by Cor Berrevoets.
Credit: Imke de Pater, Michael Wong (UC Berkeley); Al Conrad (Keck Observatory), and Chris Go (Cebu, Philippines)
[Right]: Mosaic of the area (outlined in white on the composite image) around Jupiter's red ovals at a wavelength of 5 micron. At this wavelength we receive thermal radiation from the deep atmosphere. All three spots appear dark because clouds obscure heat emanating from lower elevations. Bright regions have reduced cloud cover, showing leakage of heat into space. This 5-micron mosaic image reveals details in the cloud opacity not seen at the other wavelengths, and will help unravel the vertical structure of the spots.
Credit: Imke de Pater, Michael Wong (UC Berkeley), and Al Conrad (Keck Observatory)
