A New Reference Equipotential Surface, and Reference Ellipsoid for the Planet Mars A. A. ArdalanR. KarimiE. W. Grafarend OriginalPaper 27 October 2009 Pages: 1 - 13
Diurnal Habitability of Frozen Worlds W. von BlohK. J. KossackiC. Bounama OriginalPaper 27 October 2009 Pages: 15 - 26
Coma Structures in Comet 73P/Schwassmann-Wachmann 3, Components B and C, Between January and May 2006 Jean-Baptiste VincentHermann BöhnhardtRafael Rodrigo OriginalPaper Open access 25 October 2009 Pages: 27 - 35
Asymmetric Periodic Solutions in the Restricted Problem of Three Bodies K. E. PapadakisM. I. Rodi OriginalPaper 24 October 2009 Pages: 37 - 53
Models for the Origin of the Quadrantids Tomoyasu TanigawaShinsuke AbeTadashi Mukai OriginalPaper 01 December 2009 Pages: 55 - 65
Gary W. Kronk: Cometography: A Catalog of Comets. Volume 4: 1933–1959 Michael F. A’Hearn Book Review 11 August 2009 Pages: 67 - 69