... We have compared visualized fields of GSC and USNO A1.0 catalog with unpublished photographic finding charts that were sent by L. Plaut to the compilers of the GCVS. ... 7-15 A9 --- GCVS GCVS or NSV name 17-25 F9.4 --- GSC GSC number 26 A1 --- NoteFlag *Nonstar (GSC) flag 28-29 I2 h RA2000GSC.h Hours RA (GSC), equinox 2000.0 31-32 I2 min RA2000GSC.m Minutes RA (GSC), equinox 2000.0 34-38 F5.2 s RA2000GSC.s Seconds RA (GSC), equinox 2000.0 40 A1 --- DE2000GSC.- ... Plaut, L., 1966, Bull. ...

... During the analysis of the surveys carried out on RATAN-600, it was found that almost one fifth of the detected sources shows significant radio flux variations. ... We used the data from "Cold" radio surveys carried out with RATAN-600 in 1980-1994 to search for radio sources with significant flux variability. ... On possibility of detection of variable sources using the data of Cold surveys carried out on RATAN-600. ... Detection of Variable Sources Using the Data of "Cold" Surveys. ...

... Abstract This routine locates the point on the surface of an ellipsoid that is nearest to a specified position. ... Brief_I/O VARIABLE I/O DESCRIPTION -------- --- -------------------------------------------------- positn I Position of a point in bodyfixed frame. a I Length of semi-axis parallel to x-axis. b I Length of semi-axis parallel to y-axis. c I Length on semi-axis parallel to z-axis. npoint O Point on the ellipsoid closest to positn. alt O Altitude of positn above the ellipsoid. ...

... Fractional flux density variations of between 5 and 100 per cent (typically 15-25 per cent) have been detected on a range of time-scales from 1 to 12 years. ... The 151-MHz flux densities have been indirectly scaled to the 6C flux scale. ... Amongst the 72 sources for which the chance of being a true variable is greater than 0.8, typical maximum flux density variations of 15-25 per cent are seen; eight objects show variations greater than 50 per cent, with one source varying by more than 100 per...

... In order to disentangle the effects of different climate variables on tree-ring growth rates of different species, and to explore the possibility that more than one species could improve the accuracy of the reconstructions of climate using tree rings, a methodical study of trees in close proximity to the Armagh Observatory climate station was initiated together with Ana Maria Garc?a Su?rez, and continued as part of the latter's PhD thesis with John Butler and Professor Mike Baillie (QUB). ...

THE 75th NAME-LIST OF VARIABLE STARS. ... The 75th Name-List consists of two tables. ... the literature, taken from positional catalogues, including USNO A1.0/A2.0 and GSC, or determined by the authors); the range of variability (sometimes the column Min gives, in parentheses, the amplitude of light variation; the symbol ( means that the star , in minimum light, becomes fainter, than the magnitude indicated); and the system of magnitudes used ( P are photographic ...

The ESA/ESO Astronomy Exercise Series 2 . The Distance to Messier 100 as Determined by Cepheid Variable Stars . ... The small variations in distance to the individual Cepheid variable stars in the Cloud are negligible compared with the much larger distance to the SMC. ... In this way Cepheid variable stars can be used as one of the 'standard candles' in the Universe that act either as distance indicators themselves or can be used to calibrate (or set the zero point for) other distance indicators. ...

This section of library contains information about "classic" Star Catalogs. ... For a Henry Draper Catalog 272149 stars have received a total of 531,211 identifications in 7 сatalogs: . 270456 - in Astrographic Catalogue ( "Carte du Ciel", 4M), . 251943 - in Guide Stars Catalog (GSC), . ... A file with information on the components of 1788 of multiple systems in catalog HDEC (3681 component, or a combination thereof, with 4054 recording). ... A file with information about 21971 variable stars. ...

Peremennye Zvezdy", . ... Star Name: . ... During observations of a field in Perseus, we discovered a transient event. ... A total of 5 images with 5-minute exposures were obtained on JD 2455538. ... The combined image is shown under the light curve (top right panel). ... At the transient's position, an extremely faint star-like image is visible, marked as "Var"; its magnitude is approximately 13 m . ... Light Curve . The light curve of the transient and four images of the region around it. ...

lsst.tcc љ 1.2.2-3-g89ecb63 . ... Namespaces . ... ptCorrFromObs . ... tcc.axis.ptCorrFromObs Namespace Reference . ... Compute pointing correction position from observed coordinates. ... position of target in observed coordinates (a coordConv.PVTCoord) . ... targPtCorrXY: position of target in pointing correction coordinates (a tcc.base.ArrayPVT2) (deg) i.e. a position in rotator coordinates where X is the direction of increasing azimuth . ... list tcc.axis.ptCorrFromObs.__all__ = ["ptCorrFromObs"] . ...

... Apache HTTP Server Version 2.2 . ... Allows the setting of environment variables based on characteristics of the request . ... setenvif_module . ... The mod_setenvif module allows you to set internal environment variables according to whether different aspects of the request match regular expressions you specify. ... Environment Variables in Apache . ... The BrowserMatch is a special cases of the SetEnvIf directive that sets environment variables conditional on the User-Agent HTTP request header. ...

This module provides the ability to set environment variables based upon attributes of the request. ... The mod_setenvif module allows you to set environment variables according to whether different aspects of the request match regular expressions you specify. ... BrowserMatch . ... Syntax: BrowserMatch regex env-variable [= value ] [ env-variable [= value ]] .. ... Module: mod_setenvif . ... The BrowserMatch directive defines environment variables based on the User-Agent HTTP request header field. ...

... PmWiki . Summary: PmWiki group header. ... Link Variables | ... To have the page variable $MyVar produce the contents of the internal variable $myvar , many folks try the following which does not work: . ... FmtPV['$MyVar'] = $myvar; # WARNING: Doesn't work! There are several correct ways to do this, depending on whether you need the value of the $myvar variable as it was at the time the $FmtPV entry was created, or at the time that a particular instance of $MyVar is being rendered on a page. ...

... Posts tagged ?Schafer? ... The notions of missing data are overall different between two communities. ... Astronomers?I?m not sure how they think but my impression so far is that a missing value in one attribute/variable from a object/observation/informant, all other attributes related to that object become useless because that object is not considered in scientific data analysis or model evaluation process. ... To draw a color magnitude diagram, one needs both color and magnitude. ... 2 Comments . ...

... Graduated from Moscow State University in 1970 and till now in permanent staff of the Sternberg Astronomical Institute, Moscow State University. ... Member, Euro-Asian Astronomical Society . ... Jointly with Dr. V.Konnikova, I teach a course in Radio Astronomy at the Astronomy Division , Physics Department of Moscow State University . ... Astronomical Meetings . ... Net Search: MetaCrawler . ... Moscow State University . ... Rudnitskij, Georgij M. Page last updated November 25, 2015. th . ...

OptInt PmWiki : Pm Wiki / Other Variables . ... This variable is an array that is used for defining Page Variables . ... To have the page variable $MyVar produce the contents of the internal variable $myvar , many folks try the following which does not work: . ... There are several correct ways to do this, depending on whether you need the value of the $myvar variable as it was at the time the $FmtPV entry was created, or at the time that a particular instance of $MyVar is being rendered on a page. ...

... 2013 September 9 . Nearby Cepheid Variable RS Pup . Image Credit: Hubble Legacy Archive , NASA , ESA - Processing: Stephen Byrne . ... Pulsating RS Puppis , the brightest star in the image center, is some ten times more massive than our Sun and on average 15,000 times more luminous. In fact, RS Pup is a Cepheid type variable star , a class of stars whose brightness is used to estimate distances to nearby galaxies as one of the first steps in establishing the cosmic distance scale. ...

... tested on SUN and VAX; updated prolog ; ;- ;************************************************************************* pro pcheck, variable , position , dimension , type ; npar = n_params(0) if npar eq 0 then begin print,'PCHECK, VARIABLE , POSITION , DIMENSION , TYPE ' retall endif ; npar ; ; decode valid dimensions ; vdim = bytarr(3) idim = ...

... CEPHEID VARIABLE STARS: A Cepheid variable or Cepheid is a member of a particular class of very luminous, massive variable stars with pulsation periods of 1-70 days. ... The relationship is calibrated using data collected from Cepheids whose distances are determined by other means. ... Browse through the 68 CCD fits images he sent you, using ds9 and locate the Cepheid variable. ... Image credits: ESA - "http://sci.esa.int/science-e-media/img/20/cepheid-variables.jpg" . ...

... Documentation also updated. ... Documentation also changed to incorporate this change. ... SSC- SPR -1530 lcplot ( version 1.7 ): When testing the input file format check, the error message is not well adapted SSC- SPR -1531 lcplot ( version 1.7 ): when output file already exists, lcplot always overwrite it SSC- SPR -1532 lcplot ( version 1.7 ): the variance is computed by dividing by n : the number of elements as it should be n-1 Version 1.7 09-02-00 -------------------- - ...