Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987sci...238.1560s&link_type=abstract
Science (ISSN 0036-8075), vol. 238, Dec. 11, 1987, p. 1560-1563.
Astronomy and Astrophysics
Astronomy
11
Astronomical Spectroscopy, Charon, Planetary Radiation, Pluto (Planet), Spectrophotometry, Albedo, Methane, Occultation, Pluto, Satellites, Charon, Pluto-Charon System, Spectrophotometry, Spectra, Occultations, Earth-Based Observations, Reflectance, Albedo, Procedure, Optical Properties, Absorption, Methane, Comparisons, Physical Properties, Equipment, Surface, Composition, Water Ice
Scientific paper
Time-resolved spectra of the 3 March and 4 April 1987 mutual events of Pluto and its satellite Charon were obtained with spectral coverage from 5,500 to 10,000 angstroms with 25 angstrom spectral resolution. Charon has a featureless reflectance spectrum, with no evidence of methane absorption. Charon's reflectance appears neutral in color and corresponds to a geometric albedo of ≡0.37 at 6000 angstroms. The Pluto reflectance spectrum displays methane absorption bands at 7300, 7900, 8400, 8600, and 8900 angstroms and is red in color, with a geometric albedo of ≡0.56 at 6000 angstroms.
Barker Edwin S.
Cochran Anita L.
Cochran William D.
Sawyer S. R.
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