. [ Back to Products ] Imaging GRIN Rod Lens . Imaging GRIN Rod Lens Specifications . NA = 0.6 . Type . Diameter, mm . Quarter- Pitch Length . (P/4), * mm . HAG 040 . 0.4 . 1.0 . HAG 060 . 0.6 . 1.5 . HAG 080 . 0.8 . 2.0 . HAG 100 . 1.0 . 2.0 . HAG 150 . 1.5 . 3.0 . *Optional are lenses with achromatic length ( P/4 + d ) . [ Back to Products ]

. Name . Last modified . Size . Description . Parent Directory . - . cover.gif . 1999-12-16 01:10 . 9.4K .

PEGASE: Project de'Etude des Galaxies par Synthese Evolutive (by Damien Le Borgne and Brigitte Rocca-Volmerange) . Galaxy colours (by Robin Stevens) . ... Images of radio galaxies and quasars mapped at VLA . Atlas of radio galaxies in 3CRR sample (images, description, classification, etc.) Radio Galaxy and Quasar Images at Other Sites by A.Bridle . ... Radio galaxies in Abell clusters . ... Digitized Sky Survey images . Faint Images of Radio Survey at Twenty-cm at VLA . ...

Orbit . ... The orbit of the RadioAstron provides four types of study: . rough images of radio sources with ultra-high angular resolution, using all baselines up to the radius of the apogee, that is much larger than Earth diameter; . ... high quality imaging of radio sources, with moderate resolution, by observing either with small projected base lines Earth-spacecraft, i.e. close to the orbital plane, or near the perigee. ... high accuracy orbit determination. ... Space Radio Telescope . ...

... Resolution - 1.5-2.0 km . Swath - 450 km . ... Swath - 550 km . ... Resolution - 370 km . ... Spectral bands - 0.6-0.7 um; 0.8-1.1 um . ... Kondor - system for collection and transmission of data from sea and ice stations . ... Downlinking to ground stations (main centers) . ... Satellite's information system operates in both direct transmission mode and recording to on-board recorder mode with later downlink to ground station. ... For more information send a mail to: info@sputnik.infospace.ru . ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . General information Main characteristics of the Radio telescope Observing programs General view of the antenna array Main research areas Principle of generation of radio images Radio telescope 's beam Receiving systems Main characteristics of the base receiving-recording complex Calibrations Data archive and databases Publication SSRT - Siberian Solar Radio Telescope . ...

... Spherical aberration, coma, and astigmatism are also easily observed using the star test. ... Off-axis images are complex. ... Fig. ... Diffraction by a circular aperture as a function of defocus for no aberration Airy Disk 1 wave defocus Less than 1 wave defocus Fig. ... Diffraction by a circular aperture as a function of defocus for third-order spherical aberration Paraxial Focus Small distance inside paraxial focus Moderate distance from marginal focus Immediate neighborhood of marginal focus Fig...

... Free image alignment/stacking/processing Software . My lunar drawings . ... REAL TELESCOPES . ... Download Pocket-Aberrator . ... The Aberrator is freeware that generates star-testing images to show the effects of aberrations (distortions) influencing the quality of a telescopes performance. ... The idea to make a program like the Aberrator I got after studying many internet-sites on star-testing and often the effects of certain aberrations were only available as literal descriptions. ...

June 1, 1998 . ... An example of the EUV chain revealed by the modified SOHO/EIT images. ... The chains on the 171 ( a) and 195 A (b) images are very similar, but there are some differences on the 284 A image (c) . ... A comparison of the large-scale chains and threads on the modified SOHO/EIT (195 A) image (inverted) and two He I (10830 A) images (normal). ... SOHO/EIT, 171 A, June 01-03, 1998 GIF Animation (670 KB) . SOHO/EIT, 195 A, June 01-03, 1998 GIF Animation (1.76 MB) . ...

... If you want to change the appereance, please edit <A HREF="./index.txt">index.txt (template) file</A>. CONVERT=convert -interlace line # IMAGE_FILE = index.txt #TEXT_COLOR=black #IMAGE_TYPE=jpg #VERSION=v. 0.40 #COL_NUMBER=3 #BG_COLOR=silver #SUB_DIR=vecher #EMAIL=havlik@ap.univie.ac.at # HOME =http://www.ap.univie.ac.at/users/havlik/Downloads #TAIL= P H1 A HREF =\ ../$$hr{INDEX}\ TARGET =\ $ TARGETS [0]\ UP /A A HREF =\ $$hr{ HOME }\ TARGET =\ $ TARGETS [0]\ ...

SITE 2010 Comprehensive Characterization of Astronomical Sites Kislovodsk, Russia, 49 October 2010 Conference Summary Marc S. Sarazin*a a European Southern Observatory, Garching, Germany Abstract The main topics discussed during the Site 2010 conference are outlined and the outcome is described. Keywords: Astronomical Site testing, precipitable water vapor, atmospheric turbulence, cloudiness, seeing 1. ... Site surveys for National observatory projects in China, India, and Iran benefit from this. ...

Электронная библиотека астронома-любителя. ... архив RSN . ... Апрель 1998 . ... Дата: 10 апреля 1998 (1998-04-10) От: Alexander Bondugin Тема: Galileo Update - April 9, 1998 Привет всем! ... Дата: 10 апреля 1998 (1998-04-10) От: Alexander Bondugin Тема: Mars Global Surveyor Update - April 9, 1998 Привет всем! ... The feature known as the "Face on Mars" in the Cydonia region was imaged quite successfully on April 5th and its image was released in raw form and in an enhanced form on April 6th. ...

The Amateur Astronomers Association of Princeton invites its members to learn astro imaging! ... Well, here's your chance to kindle the motivation with like-minded AAAP members. ... Or you just want to learn more about astrophotography but you didn’t know where to turn. ... AAAP member and astrophotographer Brian Van Liew is preparing to host a AAAP SIG ( Special Interest Group ) covering digital astrophotography. ... Types of imaging equipment . ... All images on this page created by Brian Van Liew. ...

... a target=_top href="http://www.buran.ru/"> . img border=0 width=126 height=63 alt="www.buran.ru" . src="http://www.buran.ru/ images/gif/anbur63.gif "> . ... src="http://www.buran.ru/ images/gif/anbur633.gif "> . ... src="http://www.buran.ru/ images/gif/anbur634.gif "> . ... src="http://www.buran.ru/ images/gif/anbur632.gif "> . ... img border=0 width=100 height=50 alt="www.buran.ru" . ... img border=0 width=468 height=60 alt="www.buran.ru" . ...

... Solar Data: f.e. X-ray . Night Sky Live . ... Heavens-Above: Sky chart, Satellites, Iridiums and astronomical objects For Moscow For SAO Baksan . ... ESO-MIDAS page . ... Tutorials for Astronomy . ... Asteroid and Comet Hazard . ... Observable Comets: This page lists links to orbital elements and ephemerides of (potentially) observable comets. ... Leonid page - a lot of information for years Comets and Meteor Showers . The American Meteor Society . ... North American Meteor Network Home Page . ...

University Satellites and . Space Science Education . ... News . ... Internet seminars as the new way of Inter-University Aerospace Centre activity . ... In such a dynamic field as remote sensing, the Internet resources already beat traditional libraries and image depositories. ... In 2000-2005 seven Internet-based seminars were held: "Obtaining satellite images over Internet". ... Images of new types. ... Skobeltsyn Institute of Nuclear Physics, Moscow State University, 2005-2006 . ...

Space Agencies and Centres . Space research . ... BNSC - British National Space Centre . ... CNES - Centre National d' tudes Spatiales, France . ... NASDA - National Space Development Agency (Earth Observation Center), Japan . ... NASA Spacelink , includes information about the Mir station . ... John F. Kennedy Astronomy Observatory , contains rich list of astronomy sites . ... LIFE Magazine Space Links . ... Copyright RSSI 1993-1997, Space Research Institute RAS Network Information Centre ...

CLEAN Map ps -- is a plot of the naturally weighted CLEAN image. The lowest contour levels (2 steps) on image is plotted at "clev" levels [Jy/beam], the peak brightness -- "max" values [Jy/beam]. The dashed contours indicate negative flux. The beam is shown in the bottom left corner of the images. The plot is in postscript format.

... Reconstruction of peculiar velocities of galaxies from large-scale redshift catalogues provides an exemplary application of optimal transport. ... U Frisch, S. Matarrese, R. Mohayaee, A. Sobolevsky, A reconstruction of the initial conditions of the Universe by optimal mass transportation , Nature, 417 (2002) 260-262 ( arXiv:astro-ph/0109483 ) . ... R. Mohayaee, A. Sobolevskii, The Monge Amp re Kantorovich approach to reconstruction in cosmology , Physica D (2008) accepted ( arXiv:0712.2561 ) . ...

Determination of short-term proper motions of fast stars with Pulkovo Normal Astrograph. ... Khovritchev Laboratory of Astrometry and Stellar Astronomy of the Pulkovo Observatory, RAS, Saint-Petersburg Observations Normal Astrograph (D/F=33 cm/3.5m), CCD camera: S2C, FOV = 18x16 arcmin, Pixel size 900x900 mas Determination of the new proper motions of 413 LSPM stars 1 epoch : CCD-surveys and catalogs -- M2000, CMC14, 2MASS, SDSS DR7 2 epoch : CCD-observations with the ...