The optical spectrum of 5145 Pholus

Details The optical spectrum of 5145 Pholus The optical spectrum of 5145 Pholus

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992icar...99..238b&link_type=abstract

Icarus (ISSN 0019-1035), vol. 99, no. 1, p. 238-240.

Astronomy and Astrophysics

Astronomy

28

Celestial Bodies, Solar System, Spectral Reflectance, Astronomical Spectroscopy, Organic Compounds

Scientific paper

A 2.4-m telescope and a CCD spectrograph have been used to measure the optical reflectance spectrum of the 5145 Pholus outer solar system object in the 4400-9600 A range, with 10 A/pixel dispersion. No emission lines were detected, and a reflectance slope value intermediate between two previously reported slopes is obtained. This steep red slope is indicative of organic surface material, prompting the suggestion that the object is of primitive composition and at either the initial or terminal state of its thermal evolution.

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