... The image is color coded to show cloud height and thickness; white clouds are high and thick, light blue clouds are high and thin, and reddish clouds are low. ... Seen from the Pik Terskol Observatory in the northern Caucasus mountains, comet Hale-Bopp and the bright stars of the constellation Perseus hang above the snowy, moon-lit landscape. Although it reminds Northern Hemisphere dwellers of an idyllic Winter scene, this picture was actually recorded in the spring - on April 13th of this year. ...

The Astronomy Shop . ... AstroGuide | ... The Great Atlas of the Stars - Astrophotographs with Map Overlays . ... This allows the observer to compare what they see in the sky to the photo - a much more successful orientation than with an ordinary star map. ... FREE: four copies of our Heavenly Reflections cards with each book ordered - a $10.00 value. ... For an excellent, inexpensive star atlas see 'Bright Star Atlas.' ... www.astronomy.net . ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

CONTROL SYSTEM . The LV Energia autonomous control system based on the onboard computer system ensures a high accuracy of PL launching to a prescribed area and great capabilities to recover from contingency situations including a failure of one engine of LV. ... In other words, 500 contingency situations were transformed to contingency situations incorporated in the design. ... SEA LAUNCH . LAND LAUNCH | ... LAUNCHERS | ... Official WEB-site of S.P.Korolev RSC Energia . ...

This module provides for user authentication using text files. ... Available after Apache 1.3.20] The supplied username and password must be in the AuthUserFile database, and the username must also match the system's name for the owner of the file being requested. ... Available after Apache 1.3.20] The supplied username and password must be in the AuthUserFile database, the name of the group that owns the file must be in the AuthGroupFile database, and the username must be a member of that group. ...

... Questions relevant to "The Great Magnet, the Earth" will be answered, to the extent time allows. If a question seems to be worthy of broader interest, it and its answer (suitably edited) may be added to the list appearing in "The Great Magnet." ... Please do observe the following: . ... Asking about matters which are far beyond the scope of "The Great Magnet." ... Posing a question without first checking if it was answered in the main files of "The Great Magnet" or in the question-and-answer list. ...

Up: The ESO Red Sky Previous: Stars and Galaxies . ... It may have been like walking on a stage in daytime. ... Tucholke, H.-J, Schuecker, P. 1992, PASP 104, 704; Tucholke, H.-J., Hiesgen, M. 1991, IAU Symp. 148, in The Magellanic Clouds , eds. R. Haynes, D. Milne, Kluwer, Dordrecht, p. 491. Winkelkoetter, H., Diploma Thesis Muenster 1992 . ... Ritzmann, B.-M., Diploma Thesis Muenster 1992 . ... Meijer, J., Diploma Thesis Muenster 1991; Nolze, W., Diploma Thesis Muenster 1993 . ...

Modules | Directives | ... Apache HTTP Server Version 2.2 . ... Content cache keyed to URIs . ... mem_cache_module . ... It acts as a support module for mod_cache and provides a memory based storage manager. mod_mem_cache can be configured to operate in two modes: caching open file descriptors or caching objects in heap storage. mod_mem_cache is most useful when used to cache locally generated content or to cache backend server content for mod_proxy configured for ProxyPass (aka reverse proxy ). ...

... A-Za-z]{2,4}$/; if(splitted[2].match(regexp_domain) == null) { var regexp_ip =/^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/; if(splitted[2].match(regexp_ip) == null) return false ; }// if return true; } return false ; } function V2validateData(strValidateStr,objValue, strError ) { var epos = strValidateStr.search( = ); var command = ; ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . The distance of the Sun from Earth is the basic unit of all astronomical distances. ... The 18th century transits of Venus allowed a proper geometrical determination of this unit to be made for the first time. ... One of the most famous of these problems is the black drop effect. ... They calculated the mean distance to the Sun to be 95 million miles whereas the currently accepted value is close to 93 million miles. ...

. In this image, the colors and contrasts were modified to emphasize the planetтАЩs atmospheric features. The winds in NeptuneтАЩs atmosphere can reach the speed of sound or more. NeptuneтАЩs Great Dark Spot stands out as the most prominent feature on the left. Several features, including the fainter Dark Spot 2 and the South Polar Feature, are locked to the planetтАЩs rotation, which allowed Karkoschka to precisely determine how long a day lasts on Neptune. Erich Karkoschka

Allows you to specify a drift scan: motion at a constant velocity along a great circle. ... The path starts at the new object position (though the telescope actually intersects the path later, see Subtleties ). ... Note that the units are always /sec for both axes. ... The velocity along the path is 0.01 /sec. ... The path is assumed to start when you hit the Slew button (more precisely, when the TCC parses the command). However, it takes the telescope awhile to slew to meet the specified path. ...