8. Microwave Brightnesses of 1 Ceres and 4 Vesta
نویسندگان
چکیده
منابع مشابه
Forced obliquities and moments of inertia of Ceres and Vesta
0019-1035/$ see front matter 2011 Published by doi:10.1016/j.icarus.2010.09.002 ⇑ Corresponding author. Address: MS 183-301, Jet Oak Grove Drive, Pasadena, CA 91109, USA. E-mail addresses: [email protected] (B.G. B Nimmo). We examine models of secular variations in the orbit and spin poles of Ceres and Vesta, the two most massive bodies in the main asteroid belt. If the spin poles are fu...
متن کاملDawn Discovery mission to Vesta and Ceres: Present status
Dawn, the ninth Discovery mission, is a journey to the main belt asteroids Vesta and Ceres to attempt to understand the building blocks of the solar system and the processes occurring at the solar system s earliest epoch. It does this with a spacecraft that utilizes ion propulsion to reach its targets and to maneuver into orbit about these bodies. It carries a framing camera, a visible and infr...
متن کاملStrong chaos induced by close encounters with Ceres and Vesta
We consider the full Solar System including (1) Ceres and some of the main asteroids, (2) Pallas, (4) Vesta, (7) Iris, and (324) Bamberga. We show that close encounters among these small bodies induce strong chaotic behavior in their orbits and in those of many asteroids that are much more chaotic than previously thought. Even if space missions will allow very precise measurements of the positi...
متن کاملThe Hubble Space Telescope Explores the Limits of Roundness: Ceres and Vesta
Max J. Mutchler, L.A. McFadden, J. Li, P.C. Thomas, J.Wm. Parker, E.F. Young, C.T. Russell, M.V. Sykes, B. Schmidt, Space Telescope Science Institute, Baltimore, Maryland ([email protected]), Dept. of Astronomy, Univ. of Maryland, College Park, Center for Radiophysics and Space Research, Cornell University, Southwest Research Institute, IGPP, University of California at Los Angeles, Planetary ...
متن کاملMicrowave assisted synthesis of [4, 5-e] [1, 3, 4]thia- diazin-7-yl] hydrazine Derivatives
New pyrimido [4, 5-e] [1, 3, 4]thia- diazin-7-yl] hydrazines were synthesized via the cyclocondensation of alkyl-2-phenylhydrazinecarbodithioates as a binucleophile with 5-bromo-2,4-dichloro-6-methylpyrimidine as a bielectrophile , and replacement of C-7 chloro atom by hydrazine in ethanol as the solvent . This method has advantages over methods currently described in the literature for the con...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1977
ISSN: 0252-9211
DOI: 10.1017/s0252921100070159