No large brightness variations on nereid

被引：11

作者：

Buratti, BJ ^{[1
]}

Goguen, JD ^{[1
]}

Mosher, JA ^{[1
]}

机构：

[1] CALTECH, PALOMAR OBSERV, PASADENA, CA 91109 USA

来源：

ICARUS | 1997年 / 126卷 / 01期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1006/icar.1996.5644

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Observations of Nereid with the 200-in. telescope on Palomar Mountain over three contiguous nights in July 1995 show no evidence for the large photometric variations seen by earlier observers. Total brightness variations within a single night are less than 10%. Our results suggest that Nereid may have a long rotational period, perhaps on the order of weeks. Our observations were not obtained close enough to Nereid's apoapsis to determine whether its rotation state is chaotic, as suggested by Dobrovolskis (1993, Icarus 118, 181-198). (C) 1997 Academic Press.

引用

页码：225 / 228

页数：4

共 13 条

[1] SURFACE-PROPERTIES AND PHOTOMETRY OF THE URANIAN SATELLITES [J].