... As any interferometer, even those with spectrometers, measure the visibilities integrated over band passes of non-negligible widths, computes model visibilities on a grid of wavelengths. The results (visibilities, fluxes) are then integrated over wavelength, whereby special attention needs to be payed to the averaging corresponding to what the instrument actually does. ... The choice of grid is made in function calcmodel , for each spectrometer. Christian Hummel 2015-04-28 ...

. 6). From their rest-frame UV emission we can estimate individual star formation rates, and study evolution of the star formation rate density with cosmic time. At lower redshifts, near-infrared spectroscopy (including slitless spectroscopy with WFC3 on HST) has enabled us to measure star formation rates at redshifts beyond one through the redshifted rest-frame optical lines. I will review current work on this, and look to future developments (in particular JWST).

... Optical constants of amorpous SiO 2 and GeO 2 in the region of valence band. ... The optical constants were determined by 4 methods: (i) Measurements of reflectivity of polarized radiation incident at 3 different angles following by solution of the Fresnel equations; (ii) Measurements of trasmittance (for tablettes of ultra-fine powder); (iii) A combined method applied to both kind of the data following by solution of Fresnel equation for the normal incidence; (iv) Kramers-Kronig method. ...

... Tonight's Sky . ... Star Atlas . ... exoplanets . ... CHARA measures an exoplanet . For the first time, astronomers measure an extrasolar planet's diameter by direct means. ... A stronomers from Georgia State University's Center for High Angular Resolution Astronomy (CHARA) and the Michelson Science Center at the California Institute of Technology have directly measured the diameter of the star HD 189733. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

Pulkovo NEO Page . ... Pulkovo Names of Asteroids . ... Near Earth objects (NEOs) are asteroids (NEAs) and comets that can approach to the Earth in a motion along their orbits. ... If to take into account that the number of discovered asteroids is more than 400 thousand it is clear how important is the correct naming of these objects. ... Astrophysical observations (photometric, spectral, polarimetric, etc.) are oriented at derivation of information about physical properties of objects. ...

... Bad Astronomy . ... Mad Science . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... How did early astronomers determine the distance form earth to the sun, and what method is used today to determine distances in space? ... Since Huygens knew the Sun-Venus-Earth angle (from the phases), and he could directly measure the Sun-Earth-Venus angle (simply by measuring Venus' apparent distance from the Sun on the sky) all he needed was to know the distance from Earth to Venus. ...

Apparent Encounters of the Outermost Satellites of Jupiter c 2004 Ц. M. I. Varfolomeev, N. V. Emelyanov Sternberg Astronomical Institute, 13 Universitetskij prospect, 119992 Moscow, Russia e-mail: maximus@sai.msu.ru Abstract. Orbital parameters of any two planetary satellites may be refined from ground-based observations on the basis of differences in their astrometric coordinates. ... For these intervals we calculated apparent angular distances between satellites for the beginning of each day. ...

Электронная библиотека астронома-любителя. ... библиотека . архив RSN . ... Ru.Space.News: . Ноябрь 1998 . ... Дата: 05 ноября 1998 (1998-11-05) От: Alexander Bondugin Тема: Mars Surveyor 98 Update - November 3, 1998 Привет всем! ... Дата: 05 ноября 1998 (1998-11-05) От: Alexander Bondugin Тема: Deep Space 1 Update - November 4, 1998 Привет всем! ... Дата: 05 ноября 1998 (1998-11-05) От: Alexander Bondugin Тема: APOLLO: An Eyewitness Account Привет всем! ...

... 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. ...

... Home Education Classes AAA Winter Astronomy Class: Measuring Distances in Space тАУ Dec 2015 тАУ Feb 2016 . ... Classes . AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . AAA Winter Astronomy Class: Measuring Distances in Space тАУ Dec 2015 тАУ Feb 2016 . AAA Spring Astronomy Class: The Physics of Astronomy тАУ February - March 2016 . ... This MonthтАЩs Sky тАУ April 2016 . ... Dec. ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ...

... We present a new method of the ionospheric irregularity investigation based on using of temporal structure function of the phase of the vertical sounding signal. ... Theoretical relation between structure functions of the phase variations and the irregularities can be obtained in the framework of a simple model of frozen irregularity horizontal drift. ... structure function ?? ... The irregularity structure function can be easily calculated if the irregularity spatial spectrum is known. ... Figure 1...

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . Login . See many more Astronomy Listings by: Category or Alphabet . ... Listed Since July 15, 1998 . ... Web Site . ... However, you must Login to submit a comment. ... Web . www.astronomy.net . About Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . are trademarks of John Huggins ...

... arXiv.org . astro-ph . ... 1] oai:arXiv.org:1012.5438 [ pdf ] - 1386111 . ... Lemmon, Tyler J. ; Mondragon, Antonio R. Comments: 20 pages, 3 figures. Focus of paper is model with relativistic mass in the gravitational potential. arXiv admin note: text overlap with arXiv:0906.1221 . Submitted: 2010-12-24 , last modified: 2016-04-07 . ... Latitudinal Distribution of the Photospheric Magnetic Fields of Different Magnitudes . ... Submitted: 2015-04-09 , last modified: 2016-04-07 . ...

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

... SUPER RATIO . ... On this page I will present the most important (on my opinion) idea on Intellegence Life in the Universe . ... On the problem of the Super Ratio in astrophysics" . ... As a matter of fact, this is the main problem of the modern natural science. ... Here I shall try to speak about the most important problem of the modern natural science, the problem which is undoubtedly, of more importance than discovery of Blacks Holes, creation of Grand Unification Theory or Artificial...

... Because you are a newly created organization, we are not now making a final determination of your foundation status under section 509(a) of the Code. However, we have determined that you can reason-ably be expectqd, to- be a pubricly supported organization described sectiongn in )WCl), t futCl lr[1o U-10 Accordingly, you will be treated as a publicly supported organization, and not as a private foundation, during an advance ruling period. ...

... Астрофорум - астрономический портал ? ... Горизонты науки о Вселенной (Модераторы: Дмитрий Вибе , AlAn ) ? Международный Астрономический Союз - Комиссия 4 . ... Случайны ли величины масс планет? ... Таким образом Международный Астрономический Союз - МАС: . ... А вот по-позже я Вам покажу совершенно "удивительные" парадоксы от "Международный Астрономический Союз - Комиссия 4": . ... вещества планет. ... Ответ #6 : 16.03.2007 [12:21:05] ? ... Причем тут горизонты науки? ...

Stellarium 0.12.3 . ... Classes . ... MilkyWay Class Reference . Manages the displaying of the Milky Way. ... getIntensity () const . Get Milky Way intensity. ... voidљ . ... Set Milky Way intensity. ... setFlagShow (bool b) . ... virtual voidљ . ... virtual void MilkyWay::draw . ... Gets whether the Milky Way is displayed. double MilkyWay::getIntensity . ... virtual void MilkyWay::init . ... Sets whether to show the Milky Way. void MilkyWay::setIntensity . ... virtual void MilkyWay::update . ...

NEWS FEDERATION rus ENCYCLOPEDIA rus HISTORY rus MIR STATION RUSSIAN . ... Cosmonauts. ... Launches . ... Spacecraft . Launch Vehicles. ... Launch Sites . ... Space Science . Heroes Of Space Remember . Military Space . ... New Workhorse For Strelas . ... In 1997, first Araks spacecraft known as Kosmos 2344 was launched under shroud of secrecy. For the second spacecraft of the type, launch date was announced and joint military and civilian use is declared. ...

. Please standby and you will be automatically connected to the new location of the unframed Supernova page. Or, click on the link above. If you have questions or problems, please email me at David Bishop dbishop@vhdl.org . Last modified: Mon Aug 27 12:40:15 EDT 2001