An atmospheric outburst on Neptune from 1986 through 1989

Details An atmospheric outburst on Neptune from 1986 through 1989 An atmospheric outburst on Neptune from 1986 through 1989

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992icar...99..363h&link_type=abstract

Icarus (ISSN 0019-1035), vol. 99, no. 2, p. 363-367.

Physics

15

Infrared Photometry, Light Curve, Neptune Atmosphere, Visual Photometry, Brightness, Diurnal Variations, Infrared Spectra, Methane, Spectral Bands

Scientific paper

Visual photometry and methane-band imaging indicate that Neptune underwent a period of atmospheric activity in the 1986-1989 period with an enhancement of 8900 A CH4-band brightness and an increased standard deviation of the mean yearly magnitudes at visual and near-IR wavelengths. These observations are presently interpreted as due to a localized upwelling source that could be similar to the 'great white spots' that have been periodically observed on Saturn.

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