Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . ... April . ... April, 2013 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ...

. This is specified as one of: u (user) the owner of the file g (group) the group to which the owner belongs o (other) everyone else a (all) u , g and o (the world) .

... 2015 - 2016 . ... Eugene Higgins Professor of Astrophysics, Princeton University . ... December 8, 2015 . ... November 10, 2015 . ... University of the Sciences in Philadelphia author . ... Amateur Astronomer . ... 2014 - 2015 . ... June 9, 2015 . ... Digital Planetarium and the 2012 Transit of Venus from Hawaii . 2013 - 2014 . ... International Occultation Timing Association . ... 2012 - 2013 . ... 2011 - 2012 . ... Princeton University . ... Amateur Astronomers Association of Princeton, Inc., ...

... AstroCC is a coordinate conversion utility for astronomy. It accepts an object designation or the coordinates of an object and calculates coordinates in alternative systems, and at different dates, times, and locations. It also provides lunar and bright planet coordinates to aid in planning observations. ... BJD values may also be retrieved from http://astroutils.astronomy.ohio-state.edu/time/utc2bjd.html which is based on Eastman et al. ... Coordinate data are obtained from SIMBAD. ...

... atmos-2.96.0a.tar.gz . ... application/x-gzip . atmos-2.96.0a.tar.gz.md5 . ... 0.1K . text/plain . atmos-2.96.0a.tar.gz.sha1 . ... 2009-Nov-26 18:15:31 . ... 2010-Apr-06 11:03:37 . ...

... 13, Moscow 119992, Russian Federation, e-mail: busarev@sai.msu.ru; 2 Research Institute Crimean Astrophysical Observatory, p/o Nauchnyi, Crimea 334413, Ukraine, e-mail: prok@crao.crimea.ua Summary: We propose a combined method of astronomical investigations of small or distant planets incorporating registration of a set of integral spectra of an object and their frequency analysis. ... An application of the method is shown on example of asteroid 21 Lutetia. ... 6] Busarev V. V. (2002), Solar Sys. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... A most promising problem is to investigate the interaction of two VHF powerful radiowave beams in the ionosphere, whose difference frequency is equal to the plasma frequency in some ionospheric area (that is, the difference frequency is taken in the range 1-8 MHz). ... Two-frequency interaction effects are based on radiowave non-linear mixing, which is rather complicated when describing and modelling the experiment. ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

... Through development of in-depth knowledge of spectrographs on HST, the ST-ECF has established physical modelling of spectrometers, applied to FOS and STIS, and slitless spectroscopy, as applied to NICMOS and ACS, as its areas of instrument science expertise. WFC3 grism mode (@STSCI) . ACS grism mode (@STSCI) . NICMOS grism mode (@STSCI) . STIS Calibration Enhancement (@STSCI) . FOS . Slitless Spectroscopy Simulations (@STSCI) . TinyTim with WFC3 support (@STSCI) . ...

... 8 February , 2014 SAI seminar (Ryde et al 2010) 5 Thermal emission from GRB jet progenitor observer photon jet Photosphere (=1) · · · · Photons are not produced at the photosphere We have to calculate radiative transfer We need to know where the photons are produced We construct the expression for effective optical depth in relativistic flow considering random walk process in relativistic flow SAI seminar 6 8 ... 8 February, 2014 SAI seminar 28 ...

Dear Colleagues, As you know, JENAM-2007 will take place in Yerevan, Armenia. ... JENAM-2007 will consist of 6 Plenary sessions (invited reviews on hot topics of modern astrophysics, 8 EAS Symposia, and 7 Special Sessions (SPS). ... The opening and closing sessions, EAS symposia and special sessions will be organized in the conference halls and auditoria of the Yerevan State University (YSU). ... The proceedings of the JENAM-2007 will be published in the EAS proceedings series in 2008. ...

... 9) Oknyanskij V.L. 1994, "Optical-radio time delays in Q0957+561", Odessa Astronomical Publ., ... 11) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", in Proceedings of Int. Conf. ... 1994. 12) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", Astrophys. and Space Science, 222, p.157. ... 14) Oknyanskij V.L., van Groningen E., 1997, "Optical spectral variability of NGC4151 in 1990", Astronomical and Astrophys. ...

v ARIZONA CORPORATION coMMrssloN THE IRVIN MARVIN WINER I{EMORIAL OBSERVATORY, INC. IITOBILE for AuthoritY We are pleased to notify you that your Application transact business in Arizona tfas approved and filed on AUG t4; to 1990 WITIIIN SIXTY (60) You must publish a copy of your Appl-ication for Authority must be in a newspaper of generalDAYS fron the File Date. ... WITIIIN publication' must be delivered to the Comission for filing NINETY (90) DAYS frorn the File Date. ...

... Radio Astronomy . ... ASRAS Board Members . ... To see the most up to date news and events happening with ASRAS log in with your user name and password and then click on the Activities page. ... Messier Marathon (Member Observing) CANCELLED Saturday, April 9, 2016 9:00 PM Location:Farash Center Ionia NY . ... ASRAS Members meeting - Friday May 6 at Farash Center - Ionia NY . ... ASRAS Board members meeting - monday May 9 @ Farash Center Monday, May 9, 2016 7:00 PM Location:Farash Center Ionia NY . ...

Thursday, April 19th, 2012 . ... No Comments ? Friday, April 13th, 2012 . Обновлен раздел Публикации за 2011 . Tags: новости , публикации . ... You are currently browsing the Лаборатория лазерной интерферометрии blog archives for April, 2012. ... Публикации за 2010 . Публикации за 2011 . Публикации за 2012 . ... January 2013 . ... April 2012 . ... January 2012 . ... April 2011 . January 2011 . ... Лаборатория лазерной интерферометрии is proudly powered by WordPress . ...

... The Utilization of Spatial Enhancement of Landsat Images in the Delineation of Structural Elements, Red Sea Hills, NE - Sudan . ... In contrast to spectral image enhancements, spatial filters emphasize or de-emphasize image data of various spatial frequencies. ... Wherein, most of the structural elements in the area are clear and esily descernible. Subtle enhancements on the structural lineaments in the area enabled the author to produce a structural map of the area under investigation. ...

Subject, Problems and Objects of Theoretical Astrophysics. ... Stellar Photospheres, Their Features. ... Physics of Continuous Radiation Absorption in Stellar Photospheres. ... Continuous Radiation Absorption in Stellar Photospheres of Various Spectral Classes. Solar Type Photospheres. ... Characterisics of Absorption Lines. ... Interstellar Absorption Lines, Their Features. ... Physical and Dynamic Features of Interstellar Medium, Which Follows from Observations of Interstellar Absorption Lines. ...

... Obs., vol.36, December, 2000, p.64-68. ... Solar Physics, 2000, 195, 401-420. ... A.M. Uralov, H. Nakajima, V.G. Zandanov, and V.V. Grechnev Current sheet associated radio sources and development of the magnetosphere of active region revealed from 17 GHz (NoRH) and Yohkoh/SXT data // Sol.Physics, 2000, 197(2), 275-312. ... Russian-Chinese Workshop 'Solar-Terrestrial physics and its applications (Space weather), Abstracts, 14-19 December 2000, Irkutsk, 2000, p.5 . ... V.G. Ledenev. ... 2000. ...

... About meteorites . ... Meteorite Encyclopedia . ... About laboratory . ... On the night of September 24-25, in the north of Irkutsk Oblast, local residents saw a brightly glowing space object draw a line across the sky and fall into the taiga. ... But scientists learned of the heavenly visitor only on October 3, when a fax arrived at the Institute of Sun And Earth Physics from Bodaibo. ... The first thing we did was to interview residents of villages located along the meteor's flight path. ...

... 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 . ...