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Title:
On the rotation period of Neptune
Authors:
Cruikshank, D. P.
Affiliation:
AA(Hawaii, University, Honolulu, Hawaii)
Publication:
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 220, Mar. 1, 1978, p. L57-L59. (ApJL Homepage)
Publication Date:
03/1978
Category:
Lunar and Planetary Exploration; Neptune
Origin:
STI
NASA/STI Keywords:
Astronomical Photometry, Infrared Astronomy, Neptune (Planet), Planetary Rotation, Data Processing, Inhomogeneity, Light Curve, Near Infrared Radiation, Periodic Variations, Planetary Atmospheres
Keywords:
NEPTUNE, ATMOSPHERE, ROTATION
Comment:
A&AA ID. AAA021.101.026
DOI:
10.1086/182636
Bibliographic Code:
1978ApJ...220L..57C

Abstract

Two plausible values for the rotation period of Neptune have been deduced from photometric light curves at 1.25 and 2.2 microns. They are 0.7572 + or - 0.002 and 0.8160 + or - 0.002 day; additional photometric data will be required to ascertain which period is correct. Evidence is presented for changes in the atmosphere of Neptune with a time scale of several days.

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