Twilight observations with MASS/DIMM B. Safonov Sternberg Astronomical Institute Moscow State University Comprehensive Characterization of Astronomical Sites, 2010 B. Safonov (Moscow State University) Twilight observations with MASS/DIMM SITE 2010 1 / 17 Why observe in twilight with MASS/DIMM? ... ASM includes 3 devices sensitive to background: guider, DIMM and MASS. B. Safonov (Moscow State University) Twilight observations with MASS/DIMM SITE 2010 2 / 17 Background in guider. ...

... Практическая астрономия ? Астрономия и компьютеры (Модераторы: Deimos , Ed_Vazhorov ) ? Трехмерные модели вселенной? . ... Записан . ... направление на Бетельгейзе и границу Телец/Близнецы). (setq stars (list . ... list " Proxima" "red" '( -1.57 -1.16 -3.74)) . list " Barnard" "red" '( -0.20 -5.90 0.40)) . list " Wolf_359" "red" '( -7.40 2.20 1.00)) . ... foreach attr stars . command "_sphere" (nth 2 attr) "0.3") . ... command"text" (nth 2 attr) "0.5" "0" (nth 0 attr)) . ...

Main Page . Space flight . ... Space camp . ... On-line Data . ... J-Track 2.5 is a great way to locate the Space Station, Hubble Space Telescope, Chandra X-Ray Observatory or any of your favorite satellites. Click on craft - Change orbital data in lower right . ... Shift+Click on craft - Goes to web page about craft . ... Info / On-line data: General description Position J-Track J-Track 3D Explanation . Info: Industry news On-line Data Company ATLAS news Events We in press Contact . ...

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. ...

... We have used a coupled dynamical and chemical model to examine the chemical changes caused by the passage of a density wave propagating into the protostellar cloud. ... The chemical coupling between gas and dust causes locally increased number densities of active ra dicals, such as C, N, O, NH, and OH, and hydrogen saturated molecules CH 4 , NH 3 and H 2 O. We show that chemical evolution in the post-wave gas can account for the observed abundance of water and NH 3 observed in interstellar clouds. ...

What is the VSM ? ... VRML = Virtual Reality Modeling Language. ... One of the best VRML viewers, if not the best, is Netscape Navigator with Live3D plugin. ... Warning: if you use any other viewer, spacecraft will probably look like parrots or clowns because each VRML viewer treats colors in its own unpredictable way. ... You can use these VRML models freely in any way you like, but: 1) let me know you use them; 2) if you add them to your Web page, a reference to the VSM must be there. ...

The Official Publication of the Amateur Astronomers Association of Princeton Director Bill Murray (609) 298-1179 strgazr@comcast.net Assistant Director John Church (609) 799-0723 j.church@mindspring.com Treasurer Program Chairman Michael Mitrano OPEN (609)-737-6518 michael.mitrano@worldnet ... (609) 273-1456 (908) 859-1670 and (609) 448-8644 kane@princetonastronomy.org editors@princetonastronomy.org Volume 38 From the Director December ... The speaker will be the AAAP's own John Church. ...

... The caption to Color Figure 3 refers to the source 1928+734, which should be 1928+738. In the summary section on page 49 (Murphy et al.), the sentence "In that time, we have observed a variety of structural changes in the inner jet region near the region." should read "In that time, we have observed a variety of structural changes in the inner jet region near the core." In the references on page 175 (Fomalont et al.) and page 182 (Moellenbrock et al.) ...

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 . ...