1979J2 - Discovery of a previously unknown Jovian satellite

Details 1979J2 - Discovery of a previously unknown Jovian satellite 1979J2 - Discovery of a previously unknown Jovian satellite

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980sci...210..786s&link_type=abstract

Science, vol. 210, Nov. 14, 1980, p. 786-788.

Physics

6

Galilean Satellites, Jupiter (Planet), Natural Satellites, Voyager 1 Spacecraft, Voyager 2 Spacecraft, Equatorial Regions, Satellite-Borne Photography, Jupiter, Satellites, 1979J2, Discovery, Photographs, Images, Voyager 1, Analysis, Period, Size, Shape, Albedo, Characteristics, Geometry

Scientific paper

Detailed examination of imaging data of Jupiter taken by Voyager 1 reveals a previously unknown satellite 1979J2. Analysis of the image on the Jovian disk indicates that it is not an atmospheric feature or the shadow of any known satellite. The orbital period is calculated at 16 hours 11 minutes 21.25 seconds + or - 0.5 second and the semimajor axis is 3.1054 Jupiter radii. The observed profile is roughly circular with a diameter of 80 kilometers. An albedo of approximately 0.05 is reported, which is similar to Amalthea's. The geometry of the observational situation is illustrated.

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