干旱区生态环境知识资源中心(Arid): The size, shape, density, and albedo of Ceres from its occultation of BD+8 deg 471

Arid

报告编号	NASA-CR-177089, NAS 1.26:177089
来源ID	NTRS_Document_ID: 19860021993
	The size, shape, density, and albedo of Ceres from its occultation of BD+8 deg 471
	Millis, R. L.; Wasserman, L. H.; Franz, O. G.; Nye, R. A.; Oliver, R. C.; Kreidl, T. J.; Jones, S. E.; Hubbard, W.; Lebofsky, L.; Goff, R.
英文摘要	The occultation of BD+8 degrees 471 by Ceres on 13 November 1984 was observed photoelectrically at 13 sites in Mexico, Florida, and the Caribbean. These observations indicate that Ceres is an oblate spheroid having an equatorial radius of 479.6 + or - 2.4 km and a polar radius of 453.4 + or - 4.5 km. The mean density of this minor planet is 2.7 gm/cubic cm + or - 5%, and its visual geometric albedo is 0.070. While the surface appears globally to be in hydrostatic equilibrium, firm evidence of real limb irregularities is seen in the data.
英文关键词	ALBEDO ASTRONOMICAL PHOTOGRAPHY CERES ASTEROID DIAMETERS OCCULTATION LIGHT CURVE SIGNAL TO NOISE RATIOS STELLAR RADIATION TOPOGRAPHY
出版年	1986
报告类型	Technical Report
语种	英语
国家	美国
URL	http://hdl.handle.net/2060/19860021993
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/259045
推荐引用方式 GB/T 7714	Millis, R. L.,Wasserman, L. H.,Franz, O. G.,et al. The size, shape, density, and albedo of Ceres from its occultation of BD+8 deg 471,1986.