QUASI PERIODIC ORBITS IN THE VICINITY OF THE SUN- EARTH L2 POINT AND THEIR IMPLEMENTATION IN SPECTR-RG MILLIMETRON MISSIONS I VA N I L I N , A N D R E W T U C H I ... RUSSIAN ACADEMY OF SCIENCES 24th International Symposium on Space Flight Dynamics Laurel, Maryland, 5-9 May, 2014 APPLICATION OF QUASI PERIODIC ORBITS NEAR LIBRATION POINTS ESA space telescope Gaia launched on 19.12.13, direct ... Dynamics and Mission Design near Libration Points - Volume 1. ...
... Printed in U.S.A. ( YOUNG STELLAR NUCLEI IN THE LENTICULAR GALAXIES. ... We пnd a rather young stellar nucleus, with a mean population age of 1.5 ^ 0.5 Gyr, which is more metalrich than the bulge at RB 1 kpc by an order of magnitude. ... But the center of a galaxy is a special place ; the stellar nucleus may have a particular evolution that di+ers from the evolution of the whole galaxy. ... We have detected intermediateage stellar popu lations in the centers of these galaxies. ...
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. ...
marked with yelow asterisk are sites that have links to the VSM . Russian/Soviet Cosmonautics History . interesting site (Russian language only) and ABSOLUTELY STUNNING photos! Russian mirror of Mars Pathfinder site . Space Technology Images . big collection of photos and drawings including some rare and exotic . ... excellent site of spaceflight history . ... Astronomy 105 . ... Some interesting things plus a brilliant collection of astronomy and space links. Space Frontier . ...