... 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...

... 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]\ ...

... 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. ...

CREW 19/20 . ... NIITsPK picture Charles SIMONYI . ... He was decorated with the Service Order (Hungary) in 2006 and the Grand Cross - the Hungarian Republic Order in 2007. ... Since September 5, 2006 he started training at Yu.A. Gagarin Cosmonaut Training Center under the VC-12 program as the spaceflight participant. ... On December 19, 2008 by decision of the Chief Medical Board with participation of IBMP and Yu.A. Gagarin CTC specialists Charles Simonyi was allowed for the crew training. ...

... Oleg V. Verkhodanov . ... The last few years have changed our view on the evolution of galaxies: the most distant galaxies (i.e. systems having stellar population) have been found at redshift z=6.68 (Chen H.-W., Lanzetta, K. M., Pascarelle, S. 1999, Nature, 398 , 586) and radio galaxy at z=5.19 (van Breugel W., De Breuck C., Stanford S. A., Stern D., Rottgering H., Miley G. 1999. astro-ph/9904272 ). ... Redshifts and age of stellar systems of distant radio galaxies from multicolour photometry data. ...

... OXIDIZED AND HYDRATED SILICATES ON M- AND S- ASTEROIDS: SPECTRAL INDICATIONS. ... In particular, it was shown that a considerable fraction (ab. 35%) of the mainbelt M-type asteroids have absorption bands at 3 µm [3, 6] diagnostic of water of hydration. At the same time it was found that the visible-range reflectance spectra of some M- and Sasteroids include absorption features characterizing presence of oxidized silicates [4, 5]. ... The reflectance spectra of 161 Athor (Fig. 1), 497 Iva (Fig. ...

NEWS FEDERATION rus ENCYCLOPEDIA rus HISTORY rus MIR STATION RUSSIAN . ... Cosmonauts. Astronauts. ... Space Science . Heroes Of Space Remember . Military Space . ... 24 Astronauts Bumped From NASA Office . NASA Astronaut Office Roster As Of July 1, 2002 . ... Donald Pettit replaced Donald Thomas who was temporarily grounded on medical reasons. ...

Электронная библиотека астронома-любителя. ... библиотека . архив RSN . ... Ru.Space.News: . Февраль 1998 . ... Дата: 03 февраля 1998 (1998-02-03) От: Alexander Bondugin Тема: Cassini Update - January 30, 1998 Привет всем! ... Дата: 03 февраля 1998 (1998-02-03) От: Alexander Bondugin Тема: Mars Surveyor 98 Update - February 1, 1998 Привет всем! ... Orbiter Integration and Test The orbiter spacecraft has been fully assembled and checked out functionally. ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Phase range for plots: -0.5 to 1.0 0.0 to 2.0 0.0 to 1.0 . ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... Two period search methods are currently implemented. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . ...