Direct Electron Imaging Using Back Thinned CCD's . ... where, Vim is the maximum radial emission energy of photoelectrons from the cathode (eV), Vs is the cathode to anode voltage (V), k is the spatial frequency (2 p lp/mm), L is the cathode to anode spacing of the proximity focused diode (mm), d is the field-free region thickness(mm), h is the backscattering coefficient, (G/G 0 .) is the ratio of the average EBS gain of the secondary electrons to the primary gain, and W is the CCD pixel pitch (mm). ...

Еще в разделе: (Показать все результаты (>1717) - www.sao.ru/ )

• Spectroscopy
• HyperLEDA documentation: compilation of surface brightness (a105)
• HyperLEDA documentation: parameter: brief

Supernova Gallery The purpose of the Bright Supernovae web pages is to provide a place where people can find reference images of Supernovae. ... This is an RGB color image of Supernova 2003gs in NGC 936 Credit: Pablo Canadia . Used by permission. (click on image for full resolution) . ... This is an LRGB color image of Supernova 2003cg in NGC 3169 Credit: Pollux observatory . ... Credit: Nick Suntzeff Used by permission. (click on image for full resolution) . ... Credit: AURA/NOAO Image Library . ...

Еще в разделе: (Показать все результаты (>910) - www.rochesterastronomy.org/ )

• Bright Supernova Bright Supernova
• THE BRIGHT SUPERNOVA 1991T IN NGC 4527; AN AMATEURS PRESPECTIVE
• Supernova 2006E in NGC 5338

. Pulkovo Observatory of Russian Academy of Sciences is situated . near Saint-Petersburg. It was founded in 1839. 196140, Saint-Petersburg, Pulkovskoye chaussee 65/1 . English version . Russian version . This page has been accessed times since May 1, 1999.

Еще в разделе: (Показать все результаты (>281) - www.gao.spb.ru/ )

... Today this year's largest group of sunspots will cross the Sun's central meridian. ... The next day, the number of spots in the group reached five, and the day after, on June 2nd, it was possible to count thirteen sunspots on solar disk, which had been clear prior to this. ... This year's two most powerful active areas, which passed across the solar disk at the beginning of May, 2009, are set to appear in the Sun's eastern sector in two days, on June 6th. ...

Еще в разделе: (Показать все результаты (>42) - www.tesis.lebedev.ru/ )

... Rationale . ... Optical image of Centaurus A taken with the MPG/ESO 2.2-m telescope. ... Centaurus A (NGC 5128) is a spectacular giant radio galaxy. It is by far the closest galaxy in the Universe with an active, supermassive black hole, and it was the first extragalactic radio source to be identified (by CSIRO radiophysics astronomers Bolton, Stanley and Slee using cliff-top interferometry at Dover Heights ). ... X-ray image of Centaurus A taken with Chandra. ...

Еще в разделе: (Показать все результаты (>14684) - www.atnf.csiro.au/ )

• Undefined Values (BLANKs)
• ATNF Daily Astronomy Picture
• ATNF Media Release - December 1, 1998

XMM-Newton Science Analysis System . ... A different approach is done via the setting withctisrcpos =Y: all event energy corrections do not use the actual RAWY coordinate but the corresponding RAWY location of the source ( SRCPOS ) as determined by the task epframes (either automatically or via setting withsrccoords =Y). ... The task epchain may be used with the setting ccds =4 withctisrcpos =Y to process only the CCD 4 where usually the bright source is located that causes the Out-of-Time events. ...

Еще в разделе: (Показать все результаты (>4719) - xmm.vilspa.esa.es/ )

• Future developments

... It is found that the correlation coefficients between these two parameters calculated separately inside and outside the sunspot formation zone ±30 have cyclic variation and occur in anti-phase. This suggests different mechanisms of formation of the corona in the fields of small, medium, and large scales. ... The relationship between the coronal green line brightness (CGLB) and the magnetic field strength (MFS) has been investigated by constructing the corresponding synoptic maps for the 1977-2001. ...

Еще в разделе: (Показать все результаты (>486) - www.izmiran.rssi.ru/ )

Еще в разделе: (Показать все результаты (>252) - www.astro.spbu.ru/ )

• Vladimir P. Reshetnikov's Home Page
• Introduction
• Database of Optical Constants -- Level: welcome

Альтернативный форум . Scientific.ru Все форумы . ... Re: Astronomers Create 3D Map of Dark Matter Space.com 07 January 2007 01:37 pm ET . x203a; x203a; x203a; в ответ на: Astronomers Create 3D Map of Dark Matter Space.com 07 January 2007 01:37 pm ET Abramyan G.L. : An alternative theory . ... Astronomers Create 3D Map of Dark Matter Space.com 07 January 2007 01:37 pm ET Abramyan G.L., 10.01.2007 01:10 . ... Re: Прочел и привожу текст, меня вомутивший. Анатолий Рыков, 11.01.2007 08:53 . ...

Еще в разделе: (Показать все результаты (>396) - www.scientific.ru/ )

... The Pleiades star cluster, also known as the Seven Sisters and Messier 45, is a conspicuous object in the night sky with a prominent place in ancient mythology . ... The stars in the Pleiades are thought to have formed together around 100 million years ago, making them 1/50th the age of our sun, and they lie some 130 parsecs (425 light years ) away. ... Data for these stars are listed in a table below. ... Yes . ... WEBDA Pleiades cluster data . ... M45: The Pleiades Star Cluster (2007 November 18) ...

Еще в разделе: (Показать все результаты (>2558) - www.naic.edu/ )

• What is HISA?
• radioastron
• ALFA Front End Optics

... The ancient chronical said about the colour rings around the Sun and the Moon, about three suns in the sky, light columns, bright lightning, different "comets" rushing to the Earth, moving among the stars or round the Earth with the sky. All these occurrences may be divided into three categories: one that occur in the near or far space, processes going on in the Earth atmosphere under the influence of cosmic factors and at last the occurrences connected with the Earth atmosphere. ... Rainbow . ...

Еще в разделе: (Показать все результаты (>62) - www.space.vsi.ru/ )

• sunstroene

... Under certain conditions, like those in the nucleus of a QSO, all atoms can be made to emit light at particular wavelengths. ... If that source is approaching the observer, the wave is squashed up onto itself making the wavelength shorter. ... This is redshift. ... You can see how the section of the QSO spectrum which we observe changes with redshift. ... We then see how far we had to slide the observed spectrum along the scale to make it match and that is the objects redshift. ... The 2QZ team . ...

Еще в разделе: (Показать все результаты (>7) - www.2dfquasar.org/ )

Atmospheric influence on the different radio-engineering system functioning . ESTIMATION OF ATMOSPHERIC OPTICAL CHARACTERISTICS AND REMOTELY SANSED IMAGE CORRECTION . ... Direct transmittance estimation results for 12 channels of the spectrometer CHRIS. ... We have managed to develop a direct method of estimating the discrete Normalized Atmospheric Point Spread Function (NAPSF) from available images alone, not using any external sources of information about the atmosphere. ... IRE RAS 1996-20 11 ...

Еще в разделе: (Показать все результаты (>493) - www.cplire.ru/ )

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . Login . See many more Astronomy Listings by: Category or Alphabet . The Amateur Astronomers of Central Iowa is a small nonprofit amateur astronomy club located near Marshalltown in Central Iowa. ... Listed Since February 14, 1999 . ... 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 ...

Еще в разделе: (Показать все результаты (>510) - www.astronomy.net/ )

• Articles written by astronomers for astronomers of all ages.
• You Can Make Stellar Images Brighter - an Astronomy Net Article
• You Can't Make Stellar Images Brighter - an Astronomy Net Article

Photograph quality The photographs must be: I no more than 6-months old 35­40mm in width close up of your head and top of your shoulders so that your face takes up 70­80% of the photograph in sharp focus and clear of high quality with no ink marks or creases too close too far away I I I I blurred ink marked/creased I The photographs must: show you looking directly at the camera ...

Еще в разделе: (Показать все результаты (>818) - www.issp.ac.ru/ )

• http://www.issp.ac.ru/iao/2015/booklet/b10_ia15_p_en_a.pdf
• http://www.issp.ac.ru/iao/2015/booklet/b11_ia15_p_en_b.pdf

... Invisible airwaves crackle with life Bright antenna bristle with the energy Emotional feedback on timeless wavelength Bearing a gift beyond price, almost free All this machinery making modern music Can still be open-hearted. ... You can choose a ready guide in some celestial voice. ... SONG: Different Strings Who's come to slay the dragon, Come to watch him fall? ... Tide Pools When the ebbing tide retreats Along the rocky shoreline, It leaves a trail of tidal pools In a short-lived galaxy. ...

Еще в разделе: (Показать все результаты (>4704) - crydee.sai.msu.ru/ )

• http://crydee.sai.msu.ru/ftproot/pub/rec/music/lyrics/cs-uwp/m/magnum/different_worlds
• http://crydee.sai.msu.ru/ftproot/pub/rec/games/idgames/levels/doom/s-u/sinter.txt
• http://crydee.sai.msu.ru/ftproot/pub/rec/games/idgames/levels/doom/p-r/pit.txt

... Contacting and discussing with people sharing your interests, participating in night sky observations with telescopes as well as a large choice of astronomical books, magazines and video-tapes out of our club library. ... The seasons, the seeing ( a clear sky is not always associated to calm , stable air ) and most important how dark your observation site is. ... Therefore a dark site for observing is at least as important for deep sky observation as the diameter of your scope. ...

Еще в разделе: (Показать все результаты (>29) - www.aal.lu/ )

• AAL Homepage

... 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. ...

Еще в разделе: (Показать все результаты (>237) - www.astro.louisville.edu/ )

• ImageConverter (ImageJ API)

... Flux density at 1 GHz (/Jy): 28 . ... Radio: Shell, brightest to the S. Optical: Filaments correspond well to the radio shell, brightest in SE. X-ray: Brightest to NW, with point source near centre. Point sources: Central, variable X-ray source, and nearby pulsar. ... Molonglo at 408 MHz (3') and Parkes 64-m at 5 GHz (4'). ADS . ... ASCA observations of compact X-ray source. ... X-ray variability of central source. ... ATCA at 1.4 GHz (50''), including H I absorption to central source. ...

Еще в разделе: (Показать все результаты (>1707) - www.mrao.cam.ac.uk/ )

• NVSS Image ftp service Documentation Help for NVSS Image ftp service
• Astrophysics Group Surface Imaging of Betelgeuse
• G39.2-0.3

. Christmas History Traditions Carols Celebration in UK Celebration in USA яhristmas Menu .

Еще в разделе: (Показать все результаты (>61) - www.schools.keldysh.ru/ )