... An Electronic Version of Volume I of the General Catalogue of Variable Stars with Improved Coordinates N. N. Samus'1,2 , * , V. P. Goranskii2 , O. V. Durlevich2 , A. V. Zharova2 , E. V. Kazarovets1 , E. N. Pastukhova1, M. L. Hazen3 , and T. M. Tsvetkova Institute of Astronomy, Russian Academy of Sciences, ul. ... Subsequently, we are planning to publish new versions of the GCVS Volumes II and III, as well as of the catalog of suspected variable stars (the NSV catalog). ... Stars, No. ... Stars Obs. ...

Radar Investigations of Asteroid 33342 (1998 WT24) in December 2001 with Evpatoria-Medichina and Goldstone-Medichina Bistatic Systems . ... RADAR DETECTION OF NEA 33342 (1998 WT24) WITH EVPATORIA => MEDICINA SYSTEM AT 6 CM . ... 1998 . ... Evpatoria . ... The radar echo from 1998 WT24 at 6 cm was not detected on-line in Evpatoria ® Medicina system with real-time spectral analysis, while the same radar echo from this asteroid was successfully detected in Goldstone ® Medicina system at 3.5 cm. ...

... Bad Astronomy . Misconceptions . ... The Nine Planets . ... This is true, and so I have updated this page with a tidal force calculation. ... That way we can see right away how strong the other planets are; a gravity of 10 means the planet pulls on the Earth 10 times as much as the Moon does. ... So, in units of Moon gravity and tides, below are the forces on the Earth from rest of the planets (the data for masses and distances are from the wonderful page The Nine Planets ). ... 2008 Phil Plait. ...

LONG-TERM FREQUENCY HISTORY OF THE BE/X-BINARY SYSTEM SAX J2103.5 + 4545 A. Camero Arranz1 , C. A. Wilson2 , M. H. Finger3 , and V. Reglero 1 2 4 GACE, ICMUV, Univ. de Valencia,P.O. Box 20085, 46071 Valencia ... Spain, E-mail: Victor.Reglero@uv.es ABSTRACT We have carried out a long-term pulse-timing analysis of the transient X-ray pulsar SAX J2103.5 + 4545 using data from the INTEGRAL and the RXTE missions ... The 2-10 keV RXTE PCA fluxes. ... Orbital solution for SAX J2103.5+4545. ...

... Spectral Studies of Asteroids 21 Lutetia and 4 Vesta as Objects of Space Missions V. V. Busarev Sternberg Astronomical Institute, Universitetskii pr. ... When interpreting the reflectance spectra of Lutetia and Vesta, we dis cuss the spectral classification by Tholen (1984) from the standpoint of its general importance for the estima tion of the mineralogical type of the asteroids and the study of their origin and evolution. ... It contains 14 classes of asteroids. ... 2007; Busarev, 2008) were...

... 337, 275­292 (2002) The correlation of line strength with luminosity and redshift from composite quasi-stellar object spectra S. M. Croom,1 K. Rhook,1 E. A. Corbett,1 B. J. Boyle,1 H. Netzer,2 N. S. Loaring,3 L ... We measure highly significant Baldwin effects for most broad emission lines (C IV 1549, C III] 1909, Mg II 2798, H ,H ) and show that they are predominantly caused by correlations with luminosity, not redshift. ... The correlations of log W with log(1 + z ) for each line. ...

... The Thickness of Stellar Disks in Early-type Galaxies E. M. Chudakova* and O. K. Sil'chenko ** Sternberg Astronomical Institute, Lomonosov Moscow State University, Moscow, Russia Received August 19, 2013; in final form, October 30, 2013 Abstract--We suggest and justify a new photometric method enabling the derivation of the relative thickness of a galactic disk from the two-dimensional surface-brightness distribution of the galaxy in the plane of the sky. ... The galaxies are non-interacting. ...

Table 1 Transition probabilities for HI k;i 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 3 4 5 6 7 ki A Aki s ;1 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 k;i 8 9 10 11 12 13 14 15 16 17 18 19 20 4 5 6 7 8 9 10 11 12 13 14 15 ki A Aki s ; 1 1215.67 1025.72 972.537 949.743 937.803 930.748 926.226 923.150 920.963 919.351 918.129 917.181 916.429 915.824 915.329 914.919 914.576 914.286 914.039 6562.80 4861.32 4340.46 4101.73 3970.07 4.699+8 5.575+7

Measurement of Sky Brightness at the Iranian National Observatory Davoud Afshari1 and Sadollah Nasiri1,2 1Physics Department, Zanjan University, Zanjan 45195-313, Iran; Institute for Advanced studies in Basic Science (IASBS), Zanjan 45195-1159, Iran; Measurement of light pollution 2 Introduction Among 34 candidate sites at the central part of the country, 5 sites namely Garkesh (in Kashan ), Kolahbarfi(in Kashan ), Deynava (in ... One of these is light pollution. ...

... Горизонты науки о Вселенной (Модераторы: Дмитрий Вибе , AlAn ) ? Аномальная прецессия перигелия Сатурна открытая Питьевой . ... Кроме того, при разговоре о перигелии надо учитывать, что эксцентриситет орбиты Сатурна всего 0.054 и то, что понятие "вековое смещение перигелия" является довольно неоднозначным понятием, модельно зависимым. ... Это написано самим автором в той работе, которую Вы здесь обсуждаете (стр.4, формула 2 с предшествующими словами). ...

Statistics of sunspot activity . The sunspot indices . ... The solar regions . ... 1992 . ... February . ... February, 1992 . Visual indices of solar activity by author's observations . ... Average . ... 0.25 . ...

... We have used archival very long baseline interferometry (VLBI) data of more than 3000 compact extragalactic radio sources observed at frequencies, , from 2 to 43 GHz to measure the observed angular size of VLBI cores. ... Observed full width at half-maximum (FWHM) angular size of the VLBI core component of AGNs at 2, 5, 8, 15, 24 and 43 GHz versus the absolute value of galactic latitude. ... If a source was observed over multiple epochs, the median of the observed angular size is given. ...

Model operator approach to calculations of the Lamb shifts in relativistic many-electron atoms Vladimir Shabaeva in collaboration with Ilya Tupitsyna and Vladimir Yerokhinb a b St. Petersburg State University St. Petersburg State Polytechnical University FFK , Oct 7-11 , 2013 ­ p.1/26 Outline of the talk · Introduction · Per turbation theory for the QED calculations in the Furry picture · SchrЖdinger-like ... o 2 FFK, Oct 7-11, 2013 ­ p.16/26 = i | ... PRA, 1999; b P. Indelicato et al., ...

... Basic algorithms for the production of stellar photometry from CCD observations are described and reviewed. ... The problem of doing accurate stellar photometry with calibrated charge-coupled device (CCD) data amounts to that of condensing the intensity values of hundreds, thousands, or even millions of picture elements (pixels) into a list containing the magnitude and position of each star on the CCD image. ... Center an aperture of N A pixels on the star. ... PIXEL.LT.PEAKMAX)) THEN BINGO = .TRUE....

... Different equations of state tables can be used, including SAHA-S equation of state. ... 1) separate input fields for X and Z are used, each line contains only T and rho; example: 2.17e6 0.18 . 2) each line contains T, rho, X and Z; separate input fields for X and Z are ignored; example: 2.17e6 0.18 0.74 0.018 . 3) each line contains T, rho, X, Z(CNO), Z(Ne), Z(FeSi); separate input fields for X and Z are ignored; example: 2.17e6 0.18 0.74 0.010 0.002 0.006 . ...

... Tonight's Sky . ... Mars . ... Sky this Month . ... Mars rover confirms first drilled martian rock sample . ... This image from NASA's Curiosity rover shows the first sample of powdered rock extracted by the rover's drill. ... NASAт??s Mars rover Curiosity has relayed new images that confirm it has successfully obtained the first sample ever collected from the interior of a rock on another planet. No rover ever has drilled into a rock beyond Earth and collected a sample from its interior. ...