The Second U.S. Naval Observatory CCD Astrograph Catalog ( UCAC2 ) Table of Contents 1) Introduction 2) Summary of the Project a) Observations and Instrumentation b) Reductions of UCAC Observations c) Computation of Proper Motions 3) Properties of the Catalog and Important Notes For the User a) Sky Coverage b) Completeness c) Positions, Proper Motions and Error Calculations d) UCAC2 Magnitudes e) 2MASS Photometry f) Non-stellar ... All stars in the UCAC2 have proper motions. ...

... PubliУ? le 13/08/2012 par Comolli Lorenzo . Date : 06/06/2012 . Lieu : Pian dell'ArmУљ, Italian Apennines . MatУ?riel de prise de vue : TEC 140 + webcam b/w . Commentaires : Venus aureole at egress. ... This image is a composition of a short exposure for the Sun (time 4.46.55 UT) and long exposure for the aureole (time 4.46.28 UT). ... Commentaires : Sunrise with Venus and the green rim. Note also the differential refraction in the Venus disk (red rim above, blue-green rim below). ...

... Official logo of the VSM - Who and Where? What's here? ... This site's goal - The Virtual Space Museum is currently located at the Computing Center of Russian Academy of Science ( CC RAS ). ... Here you'll find mainly VRML models of Russian spacecraft and launch facilities. ... The VSM's goal is to let you see all the Russian cosmonautics rather than to provide you with encyclopaedic information. If you need figures and descriptions, try sites listed in the Links section. ...

... The VSOP Symposium proceedings, "Astrophysical Phenomena Revealed by Space VLBI" have been published and have been distributed to participants. ... Following the successful launch of the VLBI Space Observatory Programme (VSOP) satellite HALCA in February 1997 there have been many exciting results from space VLBI observations. ... Also, check the newly revised getting to ISAS page which has links to pictorial "Getting to ISAS from Fuchinobe" and "Getting to the Dai-Ichi Hotel from Fuchinobe" pages! ...