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. ...

... The spectrum of the brightest star, our Sun, shows several dark gaps perpendicular to the flow of it’s colours (figure 1). These so called spectral absorption lines where discovered in 1802 by the English scientist William Wollaston. ... Some stars as Pollux show a spectrum similar to that of our sun with strong Ca II and Fe II lines, others as Sirius or Vega show strong absorption lines of hydrogen, others, as Mira show very complicated spectra due to molecular absorption lines (see figure 5). ...

MUON METHOD FOR A MATTER STUDYING Yu. ... З МТЪУflВВ , ВПfl ПУММњИ ПВЪУ Оfl ЩЛБЛНЛ Л iЛПЛЛ НУМВМТЛУ,ММњi Л ,,БУУћ БМњi ЩБ ЛПВВЪ ЪНУВ КВ БМ~ВМЛВ, НН ПВЪУ flВ МУ,,У П,,МЛЪМУ,,У ВБУММТ ЛОЛ ПfiТТћЫУ,ТНfl ,,ПП-ТФВНЪ УТНУФЛfl. ы. е. ЕЦгймлйЗ, З. и. леагЙД еУТНУ,ТНЛИ ЩЛБЛНУ-ЪВiМЛ~ВТНЛИ ЛМТЪЛЪЫЪ, СУО,,УФ ЫМњИ еУТНУ,ТНУИ УћО. ЗЗЦСЦзаЦ 76 ї ЕВОУЫТУ, ы.е., лПЛО,, З.и., 1999 : ( ), , , чSR-, , . чSR . ... ЕЦгймлйЗ ы.е., леагЙД З.и. унй нДдйЦ еыйззхв еЦнйС аллгЦСйЗДзаь ЗЦфЦлнЗД 77 M mr. : . ... 3) : cos | ...

NMW survey overview . Access image archive . ... The New Milky Way survey aims to detect bright (V<13.5) optical transients near the Galactic plane using an automated wide-field (8x6 deg.) system capable of surveying the whole Milky Way area visible from the observing site in one night. ... All images obtained during the transient search survey are available online (please use the image archive access form ). ... Images per field: . ... Images per night: . ... Milky Way imaging time: . ...

... ОТЧЕТЫ СТУДЕНТОВ О ПРАКТИКЕ В САО . Лето 2001 года . ... Гришатовой Юлии . ... Для определения лучевых скоростей, FWHM (полной ширины на половине максимума) и интенсивности линия He I 6678.15А описывалась гауссианой ( рис.1 ). ... create/icat {P1} ztsh*.bdf . execute/catalog @@ set_lambda {P2} . execute/catalog @@ timing {P2} . execute/catalog @@ phase {P2} . ... create/table {P1}.tbl . ... create/column {P1}.tbl fwhm . execute/catalog @@ add_rv_curve_point {P2} {P1}.tbl . ...

... Maps of six sources (0420+022, 0420-014, 1308+326, 1345+125, 1803+784, and DA 193) obtained with milliarcsecond resolution are presented and discussed, together with their broadband (1­22 GHz) spectra obtained on the RATAN­600 radio telescope at epochs close to those of the VLBI observations. ... The image (Fig. 5) shows that the source structure at 18 cm is compact, consisting of a VLBI core and two jet components, with the outer component lying 5 mas (30 pc) to the northwest of the core ( = 54 ). ...

... Description . Catalog . ... In the Catalog, we publish equatorial (ЮБ 2000 , ЮД 2000 ) and galactic (l,b) coordinates of cluster centers derived as the position of overdensity in 2MASS catalog (Koposov et al. ... Distances, color-excesses and ages are the mean-square values calculated using all available evaluations from different color-magnitude diagrams. ... There are individual pages for every cluster where all available plots and parameters are published. ... 2002). ...

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