... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2004 September 13 . Identify this Phenomenon . Credit: Walter Lewin ( MIT ) . ... At the time of this writing, MIT Physics Professor Walter Lewin had yet to find someone who can give the correct explanation. ... Additionally, Professor Lewin will answer appropriate e-mail questions and guesses sent to asklewin@space.mit.edu . ...

This module allows "anonymous" user access to authenticated areas. ... Source File: mod_auth_anon.c . ... This module does access control in a manner similar to anonymous-ftp sites; i.e. have a 'magic' user id 'anonymous' and the email address as a password. ... Anonymous_VerifyEmail The example below (when combined with the Auth directives of a htpasswd-file based (or GDM, mSQL etc. ) base access control system allows users in as 'guests' with the following properties: . ... Default: none . ...

The geocentric angular distance between magnetic footprints of two satellites in the same time is considered as a criterion of the magnetic conjugations. The situation is identified, as a magnetic conjugation in case as the relative angular distance of the mentioned magnetic footprints is less then 5 deg. ... The output file with name 'xy.cng' contains the information about X and Y satellites magnetic conjugations as a function of the Universal time. ... See the output file description ...

... D.1 Grammar . ... D.3 Comparison of tokenization in CSS2 and CSS1 . This appendix is normative. ... STRING ] S* ]? ']' ; pseudo : ':' [ IDENT | ... LENGTH S* | ... return CDC;} ~= { return INCLUDES;} |= { return DASHMATCH;} { string } { return STRING ;} { ident } { return IDENT ;} # {name} { return HASH;} @import { return IMPORT_SYM;} @page { return PAGE_SYM;} @media { return MEDIA_SYM;} @font-face { return FONT_FACE_SYM;} @charset { return CHARSET_SYM;} @ { ...

. RC-archive . RC0907+0436 . RC0908+0451 . RC0934+0505 . RC0942+0447 . RC0945+0454 . The R-band contours (BTA) superposed . on 1490MHz image (VLA) ps . The map (1490MHz,VLA) superposed . on the R-band image (BTA) ps . Last updated 30 Jul 2001

Download Izmccd (~2.7 MB). Solution of problems at identification of star field. ... 2) Scale is not correct. ... In this case algorithm of identification will revise all values of scale from twice smaller up to twice greater. ... There should be more than value of the field "Number of stars in frame". ... The star field is considered identified if number of the identified stars more or equally to this value. It is necessary to set value from 4 up to value of field "Number of stars in frame". ...

... Fitting the observed dependence includes calculations of the polarization cross-sections averaged over particles orientation and size distribution, their normalization and the comparison of obtained dependencies with Serkowski's curve representing observational data for a chosen star. ... Variations of the polarization factors with wavelength are shown in Fig. 16 for homogeneous spheroidal particles with PF orientation. ... The distinction between prolate and oblate spheroids is also clearly seen. ...

OPTICAL IDENTIFICATIONS OF INTEGRAL / RXTE SOURCES WITH 1.5-METER OPTICAL TELESCOPE RTT150 I.Bikmaev (1,2), M.Revnivtsev (3,4) , R.Burenin (3) R.Sunyaev (3,4) , N.Sakhibullin (1,2) (1) Kazan State University, Kremlevskaya Str., ... 1, D-85741, Garching bei MЭnchen , Germany (3 (4) ABSTRACT We present the first results of our project on optical identifications of INTEGRAL / RXTE hard X-ray sources by using scientific instrumentations of the 1.5meter joint Russian-Turkish optical telescope RTT150. ...

Catalogue of eclipsing variables (CEV) is the world's principal database of eclipsing binary systems with available classification. CEV contains identifications, classifications, photometry, periods, eclipses data, spectral types, references and notes for 7179 systems. Format of the current CEV . CEV main table (~1.0MB) . ... List of systems, erroneously classified as eclipsing binaries in GCVS (they are not included in the CEV main table) Download all files as a single archive (~0.6MB) . ...

. This mosaic of WFPC-2 images shows the evolution of the G impact site on Jupiter (the 21 comet fragments of Shoemaker-Levy 9 were each assigned a corresponding letter to identify the impact site; G represents the 7th fragment to strike the planet. It was also the largest impact.) // R. Evans/J. Trauger/H. Hammel/and the HST Comet Science Team

... We proposed that information retrieved from the local surface photometric behavior of the Moon could be used for guiding the remote sensing analyses of specific geological targets. ... The value of the difference of intensities mentioned above may be used as a photometric parameter I of the local surface roughness. ... 7] Apollo 11 Prelim. ... Figure 5 represents the diagram of relationship between photometric roughness parameter and local thorium content in different lunar regions. ...

MAKING THE PROFILES . First of all you are expected to load a FITS file ("FILE"-"LOAD"). ... By pressing the middle button you copy the profile from the first profile window to the second one. ... An example: first integral can correspond to the profile of active region and second integral can correspond to the profile of quiet chromospheric region. ... The second profile (which is subtracted from the first one) you extract after clicking on "SUBTRACT"-"MARK QUIET PROFILE" and marking the region. ...

. Departement of Quantum Astrophysics . Head: Kurt V.G. , Prof. ultraviolet spectroscopy of planetary upper atmospheres and interplanetary/interstellar medium; . observations of gamma-bursts and optical identification of their sources; . long-base optical interferometry. Staff: .

... About half an hour after the BAT trigger, the first images were obtained with the SAO RAS Zeiss-1000 telescope in four BVRI filters (see Fig.1). ... The spectrum of the optical transient was obtained with the SAO RAS 6-m BTA telescope 1.54 hours after the burst, using the SCORPIO instrument in the spectroscopic mode (Fig.2). ... The spectrum of the optical transient GRB090726 with identified lines, obtained with the BTA 1.54 hours after the burst. ...

Verkhoglyadova O.P., V.N. Ivchenko, K. Kudela, M. Slivka, V.N. Lutsenko, S.A. Romanov "Approach to identification of the tail plasma regimes using INTERBALL-1 data" // Czech. ... Yermolaev "Observation of vortical motions and compressional waves in the dawn low-latitude sheet" // Journal of Technical Physics, 1999, v.XL, No 1, p.325-328. ... Martiushov V. "A point explosion inside a cavity with power-law density distribution" // 6 th Open Young Scientists' Conference on Astronomy and Space Physics. ...

... Transit times, hours . ... Date, time, UT . ... 111 . ... non-AR . ... 132 . ... 2000/02/12, 12 . ... 236 . ... 2001/03/20, 14 . ... 154 . ... 2004/01/22, 14 . ... Columns 2-6 - Information on the geospace disturbance, including the GMS peak date and time, minimum Dst and peak Ap values, FD magnitude, date and time of the disturbance onset (SC). ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

... VaST is a software tool for finding variable objects on a series of astronomical images. ... VaST performs object detection and aperture photometry using SExtractor on each image, cross-matches lists of detected stars, performs magnitude calibration with respect to the first (reference) image and constructs a lightcurve for each object. ... VaST FITS image viewer ./pgfv . ... Part I" PZP, vol. ... K. V. Sokolovsky, S. A. Korotkiy; "New Variable Stars Discovered by the NMW Survey" PZP, vol. ...