The concept of expedition to Europa , the Jupiter's satellite Main stages of mission · · · · · · · · · · Insertion by using of LV Proton into a basic circular orbit in height of 200 km; Acceleration by using of USB Breeze on an interplanetary trajectory, separation of SC; Flight on Earth-Earth trajectory by using of transport module with electric propulsion system ; Earth Gravity assist; Flight to Jupiter by using of transport ... Trusters Structure Tank unit 2 Main egine Gas tank 1 8 © « . ...

... To be read in conjunction with Chapter 5 of the WFPC2 Instrument -Handbook, Version 4.0. Here we supplement the Instrument Handbook with short discussions of the use of PSF subtraction to maximize image dynamic range and to obtain accurate stellar photometry. We also discuss a source of error in the published values of the HST aperture correction. ... Thus faint objects near bright objects can be difficult to detect and to distinguish from PSF artifacts. ... Last updated: 06/16/98 10:38:00 . ...

... Preliminary analysis of early data returned by NASA's historic Galileo probe mission into Jupiter's atmosphere has provided a series of startling discoveries for project scientists. ... These initial findings are encouraging scientists to rethink their theories of Jupiter's formation and the nature of planetary evolution processes, according to probe project scientist Dr. Richard Young of NASA's Ames Research Center, Mountain View, CA. ... GIF, 29K ) . ... Structure of Jupiter's Atmosphere . ...

... Several of the tasks in the spectral package share a common set of parameters. ... Each task in the spectral package has a hidden parameter which points to the pkgpars parameter file. The parameters stored here include the observed data sets and the model descriptor, and instrument-specific parameters. ... The observed counts and error data set contained in the table file ( *_obs.tab ) produced by qpspec will be the input data for subsequent spectral tasks. ...

This home page belongs to small group of scientists working at . Sternberg Astronomical Institute which is a part of Moscow State University . ... Электронная библиотека научно-технической и художественной литературы (доступна только из ГАИШ) . ... Local staff . Dr. Edward Kononovich (konon -at- sai.msu.ru), Associate Professor . ... Dr. Sergey Ayukov (asv -at- sai.msu.ru), Research Fellow, Webmaster of the group . ... Joint seminar of Solar Studies Structure Group and Solar Photometry Group . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . des actualit†йs . des reportages . ... les plus belles images de l'Univers d†йcrypt†йes pour vous . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Une sonde am†йricaine explorera Jupiter en 2016 . ... 04/04/2016 - Une Terre en formation autour d'une †йtoile proche€а? . ...

NASA Press Release Text - June 24, 1996 GALILEO READY FOR CLOSE FLYBY OF JUPITER'S BIGGEST MOON Now residing in orbit around Jupiter, NASA's Galileo spacecraft is primed for its first close flyby of Jupiter's largest moon, Ganymede, at 2:29 a.m. EDT on June 27, 1996. ... In the days just before and after the Ganymede flyby, Galileo's other studies will include a search for auroral activity on Jupiter's nightside and observations of other Jovian moons: Io, Europa and Callisto. ...

... 11 Yellow-Green (78% transmission): Contrasts well with the red and blue characteristics of surface features on Jupiter and Saturn. ... 82A Light Blue (73% transmission): Useful on the Moon, Mars, Jupiter, and Saturn, this subtle pale blue filter enhances areas of low contrast while avoiding significant reduction of overall image brightness. ... Meade Series 4000 Photo-Visual Color Filters may be ordered individually or in the following sets: . ... Meade Series 4000 Broadband Nebular Filters . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The initial EB event is easily observed in the left-hand frame. ... Despite a plethora of researches discussing the morphologies of EBs, there has been a limited investigation of how these events appear at the limb, specifically, whether they manifest as vertical extensions away from the disc. ... The upper atmosphere is also probed using the Solar Dynamic ObservatoryтАЩs Atmospheric Imaging Assembly (SDO/AIA). ...

... 9.08.2011 . ... Credit Copyright: NASA Explanation: Next stop: Jupiter . ... The above video depicts the launch of Juno aboard a Atlas V rocket. When the robotic Jun o spacecraft reaches Jupiter in 2016, it will spend just over a year circling the Solar System's largest planet , using its unique cadre of instruments to probe the planet, sending back clues of its structure and origin. ... 2015 2016 . ... Publications with keywords: Jupiter - launch . Publications with words: Jupiter - launch . ...

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

... Computerised Instrument Control and Data Acquisition (CICADA) is a software system for control of telescope instruments in a distributed computing environment. ... Computerised Instrument Control and Data Acquisition (CICADA) is a software system developed to provide access to, control of, and retrieval of data from, instruments mounted on observatory telescopes. ... Each instrument class generates its own request data structures using its own generate_req method, which is called by the control...

... AAS link ] . ... Our internal perspective makes it difficult to determine the spiral structure of our own galaxy. ... H I absorption, on the other hand, traces colder, denser gas that should be more confined in discrete clouds and perhaps discrete spiral arms. In addition, H I self-absorption (HISA) requires background H I emission at the same velocity as the foreground absorbing gas, thus introducing a much-needed constraint on the large-scale sightline geometry and kinematics. ...

... All output data sets start with a string composed by one or more of the following parts, each separated by an underscore character ( _ ): . ... These parts are hierarchically structured, so that, say, any data set name that contains the exposure identifier will also contain the revolution number, the observation identifier, and the instrument name. ... Gti : GTI . AuxGti : GTI based on the auxiliary file . ... Evts : the data set contains an event list . ImagingEvts : imaging mode event list . ...

... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

... MILT Description . ... Telescope Control System . ... Biblography The Astrophysical Research Consortium (ARC) consists of astronomers at the following institutions: University of Washington, University of Chicago, New Mexico State University, Princeton University, and Washington State University. ... In addition some advancement in the art and engineering of large telescopes will be pursued. The telescope design itself is one of three major project tasks. ...

... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Mars . ... Mars mission team addressing vacuum leak on key science instrument . ... A key science instrument that will be carried aboard NASA's Interior Exploration Using Seismic Investigations, Geodesy and Heat Transport (InSight) spacecraft being prepared for launch in March 2016 is experiencing a leak in the vacuum container carrying its main sensors. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

... Science . ... Science Users Information > Science Publications > Science Announcements > GRAVITY VLTI Instrument Under Integration on Paranal . ... Observing Facilities . ... Paranal Facilities . ... Observing with ESO Telescopes . ... Science Archive Facility . ... The VLTI 2nd generation instrument GRAVITY provides a four way beam combination facility with laser metrology for micro-arcsecond astrometry and high resolution imaging and spectroscopy in the K -band, described in Eisenhauer et al 2011 ...

... Both sets of objective transmission gratings consist of hundreds of co-aligned facets mounted to supporting structures on 4 annuli (one for each of the four co-aligned mirror pairs) to intercept the x rays exiting the HRMA. ... The two sets of transmission gratings, attached to the mounting structure are shown in Figure . ... An individual facet has 0.43-m-thick gold grating bars with 50% filling factor and 9920- period, resulting in 1.15-/mm dispersion. The HRC-S is the primary LETG readout. ...

. Next: A simple photometer Up: Instrument configuration and Previous: Telescope optics . љ Because the instrumental table file is rather complicated, and has a variable structure that depends on the nature of the instrument, here are some examples. A simple photometer . A modern single-channel photometer . A modern two-channel photometer . CCD photometry . Rein Warmels . Mon Jan 22 15:08:15 MET 1996