Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989sci...246.1450l&link_type=abstract
Science (ISSN 0036-8075), vol. 246, Dec. 15, 1989, p. 1450-1454.
Astronomy and Astrophysics
Astronomy
37
Astronomical Photometry, Neptune Atmosphere, Neptune Satellites, Planetary Rings, Spaceborne Astronomy, Voyager 2 Spacecraft, Aerosols, Nereid, Optical Thickness, Stellar Occultation, Triton
Scientific paper
Voyager 2 has performed photopolarimetric measurements for the planet, several of its satellites, and its ring system. The Great Dark Spot is noted to appear as a low-albedo region, while the bright companion appear to lie at a higher altitude than the Great Dark Spot. Triton's linear phase coefficients are consistent with a solid-surface object having high reflectivity; its rotational phase curve indicates two major compositional units at its surface. The deficiency of material in Neptune's ring system by comparison with that of Uranus may indicate the absence of a recent moon-shattering event.
Buratti Bonnie Jean
Esposito W. L. W. L.
Hord Charles W.
Horn Linda J.
Lane Arthur L.
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