NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
The size, shape, density, and albedo of Ceres from its occultation of BD+8 deg 471The 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.
Document ID
19860021993
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Millis, R. L. (Lowell Observatory Flagstaff, AZ, United States)
Wasserman, L. H. (Lowell Observatory Flagstaff, AZ, United States)
Franz, O. G. (Lowell Observatory Flagstaff, AZ, United States)
Nye, R. A. (Lowell Observatory Flagstaff, AZ, United States)
Oliver, R. C. (Lowell Observatory Flagstaff, AZ, United States)
Kreidl, T. J. (Lowell Observatory Flagstaff, AZ, United States)
Jones, S. E. (Lowell Observatory Flagstaff, AZ, United States)
Hubbard, W. (Arizona Univ. Tucson., United States)
Lebofsky, L. (Lowell Observatory Flagstaff, AZ, United States)
Goff, R. (Lowell Observatory Flagstaff, AZ, United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1986
Subject Category
Astronomy
Report/Patent Number
NASA-CR-177089
NAS 1.26:177089
Accession Number
86N31465
Funding Number(s)
CONTRACT_GRANT: NSF 84-14141
CONTRACT_GRANT: NSG-7603
CONTRACT_GRANT: NSG-7045
CONTRACT_GRANT: NSG-7114
CONTRACT_GRANT: NSG-7322
CONTRACT_GRANT: NSG-7500
CONTRACT_GRANT: NSG-7526
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available