... 486 Enrichetta Iodice and Enrico Maria Corsini, eds. c 2014 Astronomical Society of the Pacific Inner Polar Gaseous Disks: Incidence, Ages, and Possible Origin O. K. Sil'chenko1 and A. V. Moiseev2 Sternberg Astronomical Institute, Lomonosov Moscow State University, Moscow, Russia Special Astrophysical Observatory, Russian Academy of Sciences, Nizhnii Arkhyz, Russia Abstract. ... Further Bettoni et al. (1990) have claimed inner polar gaseous disk in the Southern ringed lenticular galaxy NGC 2217. ...

A Digital Science Partnership for Southern Skies in the Classroom J.F. Kielkopf 1 and B.D. Carter 2 2 Faculty of Sciences, University of Southern Queensland, Toowoomba, QSLD, Australia 1 Department of Physics and Astronomy, University of Louisville , KY, USA Abstract A collaboration between the University of Louisville , the University of Southern Queensland, and Northern Kentucky ... We expect to install the telescopes in January 2006. ... Network, Servers and Software Mt. ...

. Authors . Problem . Method . Advises . Contact Analysis of an accuracy of CCD asteroid observations carried out by professional and amateur astronomers . An accuracy estimation of CCD asteroid observations contained in the Minor Planet Center Database and carried out in the years 1999 - 2006 is realized. About 20 millions individual positions of the Numbered and Unnumbered Minor Planets were tested by means of calculations of (O-C) residuals to derive "mean error of a single observation" for more than 400