... Zacharias, N. & Zacharias, M. I. 1999, in ASP Conf. ... The USNO CCD Astrograph Catalog South (UCAC-S) project is a high precision astrometric survey of the entire southern hemisphere for the 7 - 16 magnitude range, aiming at an accuracy of 20 mas for 8-14 m stars. ... The ACT (Urban et al. 1998) and the Hipparcos and Tycho Catalogues (ESA 1997) are used as reference (UCAC-R), supplemented by an extragalactic link program carried out in parallel mainly at the Cerro Tololo (CTIO) 0.9-meter telescope....

... Visible Distribution of Galaxies. ... Features of Elliptical, Lens-Shaped, Spiral and Irregular Galaxies. Galaxies with Bar. ... Distribution of Surface Brightness of Surface and Spiral Galaxies. ... Color Characteristics of Galaxies. ... Methods of Galaxies' Mass Determination. ... Hidden Mass of Spiral Galaxies. ... Features of Dark Matter Distribution in E and SO Galaxies. ... The Whole Number of Galaxies and Their Density by the Results of Observation on the 'Hubble' Space Telescope. ...

... Classes . ... Constellation Class Reference . ... getEquinoxEquatorialPos (const StelCore *core) const . Get observer-centered equatorial coordinate at the current equinox The frame has it's Z axis at the planet's current rotation axis At time 2000-01-01 this frame is almost the same as J2000, but ONLY if the observer is on earth. ... getJ2000GalacticPos (const StelCore *core) const . ... Get observer-centered hour angle + declination (at current equinox) It is the geometric position, i.e. More.. ...

... n For illustration, examine a coarsened (256 в 256) set of images, with 3 clusters Clustering AIA data Clusters in log Y space Clusters in Y /n space Distribution of pixels in each cluster Distribution of pixels in each cluster Simulated Data Simulated Temperature Distributions 4 5 6 logT 7 8 9 Simulated Data Simulated Data Simulated Data Simulated Data Simulated Data: Results Simulated Data: Results Simulated Data: Results Simulated Data: Results How to make images of results more meaningful? ...

Modules | ... Apache HTTP Server Version 2.2 . Apache > HTTP Server > Documentation > Version 2.2 . ... Other Modules . ... Core Apache HTTP Server features that are always available . ... This module provides for executing CGI scripts based on media type or request method. mod_alias . ... Sends files that contain their own HTTP headers . ... User authentication using MD5 Digest Authentication. mod_authn_alias . ... Provides for "trailing slash" redirects and serving directory index files . ...

... Observations of the Moon eclipse on 17.09.97 have shown the Moon details contrasts had decreased and the total radio brightness had fallen at all observed frequency range (from 10% at 1.38 sm down to 2.5% at 13 sm). The fall of the Moon radio brightness has been detected during the eclipse at decemeter waves for the first time. ... Radio emission of the Copernicus crater at 1.38 and 2.7 sm has been detected for the first time. ...

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 . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Sequence of four video frames captured at 01:05 BST at Armagh Observatory on the night of the 24/25th July 2013, showing the onset, development and demise of the sprite. ... Unlike common lightning discharges, which often jump between clouds or between the clouds and the ground, sprites are associated with similarly powerful electrical fields that occur high above the clouds of the EarthтАЩs atmosphere. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Telescopes and Observatories . ... The majestic star-forming region in the Lagoon Nebula. The pale ring to the right is an internal reflection in the telescope.€а (Image credit: ESO/ VPHAS+/ V. Kalari and J. Vink (Armagh Observatory) . ... The 18 component images were further processed twice. ... Venu and his colleagues use images like this to identify individual young forming stars in the Lagoon Nebula and determine their ages. ...

... Home Articles Observing Resources for Amateur Astronomers ? Part 1: Beginning Observers Observing Resources for Amateur Astronomers ? Part 3: Advanced Observers . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . Observing Resources for Amateur Astronomers - Part 2: Intermediate Observers . Observing Resources for Amateur Astronomers - Part 3: Advanced Observers . Observing Resources for Amateur Astronomers - Part 4: Magazines and Miscellany . ...

SPECTRAL FEATURES OF THE AVALANCHE DEPOSITS IN LUNAR CRATER REINER. ... Crater Reiner. ... 5 Immature soils (coded in green, box 3) occupy most areas of the inner wall slopes of the crater. ... Distribution of the immature soils shown in Fig. 5 correlates with distribution of the bright materials on the wall slope of the crater as it is seen in Fig. ... The presence of very immature soils on the inner wall slopes and on the central peak of the crater Reiner suggests recent intensive slope processes. ...

Target: Alnitak or Zeta Ori or Flame Nebula (also Horsehead Nebula) Date: 2012-11-18 Time: 06:36 to 06:43 Telescope: FSQ Camera: Apogee 9000 Filters: UBVRI Exposure time: 100 seconds each filter Observer: John Kielkopf Processing: John Kielkopf Processed with alsvid, ds9

... 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...

... 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 . ...

This archive is actually an official fix for XFree86/OS2 which corrects a certain bug in the device driver required for XFree86. For fun, and as a bonus, I added one more feature to this driver which could make it quite worthwhile for people who do not own or use XFree86/OS2 (info is at http://borneo.gmd.de/~veit/os2/xf86os2.html, BTW). ... However, to only use the "death" feature, you don't need to install any parts of XFree86 except the enclosed device driver. ... NEW Beta XFree86/OS2 3.1.2E | ...

... Contacts . 2012: . ... We refined the fundamental parameters of the components, the orbital periods, and the conditions of photospheric heating of the secondary component by the ultraviolet radiation of the hot component. ... The observations of the star clusters associated with ultra-luminous x-ray sources (ULXs) in four galaxies on the 6-meter and VLT telescopes have shown that all the ULXs are located within 200pc of very young star clusters (younger than 5 million years). ... Archive . ...

This module provides for server-side imagemap processing. ... Configurable generation of imagemap menus. The lines in the imagemap files can have one of several formats: directive value [x,y ...] . ... The directives can come in any order, but are processed in the order they are found in the imagemap file. base Directive . ... Module: mod_imap . ... Its value is overridden by a default directive within the imagemap file. ... Its value is overridden by a base directive within the imagemap file. ...

... Site User's Guide (revised January 2015) . General Observing Information . ... An area map is available, as well as detailed directions from regional airports. ... APO does not recommend using GPS for directions to the site; please use the written directions below. ... APO/SDSS/NMSU Purchasing, Travel, Receiving, and Shipping Procedures . APO Site Safety Plan, V2.31 (current); APO Sprinkler and Shutter Procedures (pdf) . ... Roads to APO are all paved but are subject to heavy snow and ice. ...

... Сегодня: 10 апреля 2016 г. Космический корабль, который работает на солнечной энергии, вскоре может начать свой полет по Солнечной системе. Группа американских и российских ученых готовится запустить зонд с гигантскими пластиковыми "парусами", которые могут ловить солнечный свет подобно тому, как паруса яхт ловят ветер, пишет The Observer (перевод на сайте Inopressa.ru). ... The Observer: российские и американские ученые создали космическую яхту с парусами из солнечных батарей . ...

... Advises . Contact Advises . As an advise for amateurs we would like to underline: if it's possible, try to observe 3 asteroid positions per night and do not neglect to observe the Numbered Minor Planets in your telescope field of view as a "by product" of your observational programs. ... We think such estimations ought to be produced every morning after CCD observations of the moving celestial objects by observer himself. ...