... SMIS : Space Monitoring Information Support laboratory . Russia's Weather : State Meteorological Center Weather Forecast . Space Weather service : ACE real time solar wind data and simple geomagnetic activity forecast. ... World Fire Web : Space Research Institute (IKI) node . Sputnik : Joint project of SRC Planeta, Rosgidromet and Space Research Institute (IKI) . ... Today's Space Weather : Presented by the Space Environment Center . ... Back to the Space Research Institute Home Page ...

. Next: The structure of neutron Up: An overview Previous: The lighthouse model . љ . љ љ . Figure 5: The radio pulsar equivalent of the Hertzsprung-Russell diagram - a physical diagram indicating the nature and evolution of neutron stars. Each dot represents a pulsar, stars represent pulsars associated with supernova remnants, circles indicate pulsars in binary systems and ellipses indicate pulsars in binary systems with eccentric orbits. Jon Bell . Thu Dec 19 15:15:11 GMT 1996

Next: Binary Radiopulsars with Black Up: Black Holes in Binaries Previous: Black Holes in Binaries . Two different types of stellar BH formation exist: (1) direct core collapse   of a massive star and (2) AIC of a NS. A BH of the first type presumably will have a mass comparable to that of the collapsing star and can be born both from a single star and in a binary system. ... Next: Binary Radiopulsars with Black Up: Black Holes in Binaries Previous: Black Holes in Binaries Mike E. Prokhorov . ...

... The work involves theoretical research on the dynamics of these objects, either Centaurs or Trans-Neptunian Objects (TNOs) over time-scales comparable to the age of the solar system or until they evolve into the Jupiter-family comet system. The first study (Emel'yanenko et al. 2003) showed that there exist bodies which represent a new population of TNO in the outer solar system, denoted Class O for `outer' TNO. ...

... 9a. Earth orbits Sun? . ... 10a. Scale of Solar Sys. ... If the mean distance of Earth from the Sun is 1 AU ("Astronomical Unit"), then that of Venus is 0.723 AU, of Mercury 0.387 AU and that of Mars is 1.524 AU. ... By noting (1) where on the Sun's disk is the crossing seen, (2) timing its duration at two far-apart points on Earth, and (3) comparing the times, one can calculate the distance to Venus and from it the scale of the solar system. ... One occurred in 1639--too early. ...

... HD 10180: Richest Yet Planetary System Discovered . ... Our Solar System has the most planets of any known star, most probably because it is so hard to detect planets around other stars . Sensitive measurements, though, have now uncovered a slight but complex wobble of the Sun-like star HD 10180 indicating that it has at leave five planets and possibly more, making it the richest extra-solar planetary system yet known. ... Publications with keywords: extrasolar planet - planetary system - ESO . ...

... The routine processing of STIS data in the calibration ``pipeline" requires an interrelated set of software tasks and databases developed and maintained by many groups at STScI. We present the systems-level design of this calibration pipeline from the perspective of the STIS instrument group at STScI. We describe the multiple interfaces to the pipeline processes that the STIS group works across in an effort to provide for the routine calibration of STIS data. ... For example, the STIS group: . ...

... Planets . ... Earth Satellites . ... Looking in the direction of the constellation Cygnus the Swan and launched by NASA in 2009 is the Kepler Space Observatory.Many previous missions searching for exoplanets mainly detected large giant planets, like large hot Jupiters (it is easier to detect larger planets).However KeplerтАЩs main objective is to search for much smaller planets located in a habitable zone which is not too close nor too far from their star; planets which may be just like our Earth. ...

Next Previous Contents . ... There are filesystems on disk partitions and other devices, and there is the filesystem as it is presented to you by a running Linux system. In Linux, you ``mount'' a disk filesystem onto the system's filesystem. ... A filesystem imposes some structure on this, and makes it look like files within directories within directories.. ... If the power cuts out at this point, the filesystem will be broken. ... Usually, the kernel mounts its root file system read-only. ...

... December 29, 1999 . The Decade that Defined Star System . ... The first extra-solar star system was discovered orbiting a pulsar in 1991. Slight changes in the precise arrival times of the pulses from the central small dense neutron star gave evidence of orbiting planets . ... As the decade comes to a close, over two dozen planetary star systems have been identified, one recently confirmed by the detection of a slight eclipse by the planet itself. ... About APOD > . ...

... There are three views that can be discussed when referring to a logical view of SNEAKERS . These are the control flow, the data flow, and the agent communications. ... For our purposes, the user is considered a subsystem with the ability to add information to the system and affect the control and data flows. ... A view of the blackboard system is shown in Figure . ... The user is still able to get information from other agents and post information to them, just as if they were using a blackboard. ...

... Bojan Nikolic web pages (r. 329) . ... Building CASA . ... Introduction to SCons . I have designed a prototype implementation of a build system for CASA based on the SCons tool. ... This system is experimental and not the official way of building CASA. ... The main version of the code for this build system is contained in a bzr branch, together with the remainder of the CASA system. ... Build: . ... To debug the SCons build process: . ... A prototype build system for CASA using SCons . ...

. Next: Routines of the Calibration Up: Coordinate Definitions used by Previous: Spatial coordinate systems Contents . Several calibration entities are time dependent, i.e., change on a time-scale given by the typical duration of an observation ( ksecs). Each corresponding CAL subroutine receives a time argument which specifies a point in time represented as ellapsed number of seconds since the fixed mission reference time . 1998-01-01T00:00:00.00 TT = 1997-12-31T23:58.56.816 UTC . Michael Smith 2011-09-20

... 8, ``Celestial Mechanics'', 2002 Dynamic evolution of resonance orbits of exoplanets in system 47 Uma B. R. Mushailov, A. A. Kaloshin Sternberg Astronomical Institute, Moscow, Russia The orbits of the major and minor planets of the Solar system indicate that their dynamic evolution is essentially influenced by the effects of orbital reso­ nance interactions. ... One may expect that the orbital resonances can exist not only in the Solar system, but also in other star systems. ...

... Note that in the low-mass model, the ``secondary'' is more massive than the visible ``primary''; however, we shall follow the convention used in most of the Aurig? literature and continue to refer to the F star as the primary because it is clearly the primary source of luminosity of the system. Doppler shifts of absorption lines seen during eclipse imply an orbital velocity at the edge of the secondary more compatible with the low-mass model (Saito et al. ...

... The remote planet Pluto and its moon Charon orbit the Sun at a mean distance of almost 6,000 million kilometres, or nearly fourty times farther out than the Earth. During a recent investigation by an international group of astronomers [1], the best picture ever of Pluto and Charon [2] was secured with the European Space Agency's Faint Object Camera at the Hubble Space Telescope (HST). ... The new HST image was taken when Charon was near its maximum elongation from Pluto (0.9 arcseconds). ...

... Object and Class Structures . ... Initializing a New Class . ... typedef struct _GtkButton GtkButton; typedef struct _GtkButtonClass GtkButtonClass; struct _GtkButton { GtkBin bin; GtkWidget *child; guint in_button : 1; guint button_down : 1; guint relief : 2; }; struct _GtkButtonClass { GtkBinClass parent_class; void (* pressed) (GtkButton *button); void (* released) (GtkButton *button); void (* clicked) (GtkButton *button); void (* enter) (GtkButton *button); void (* leave) (GtkButton *button); };...

... The common identifier of this star system is G89-14. Initially, there were known just two close spectroscopic components in this system, A and B, orbiting around each other with a period of about 190 days (Carney et al., ... Subsequently, at a separation of 34 arc seconds from this spectroscopic pair, Allen et al. (2000) found its companion D with common proper motion (Fig.1, right, and Fig.2). ... The uniqueness of this star is that it is the most metal-poor quadruple system known to date. ...

... 2000 September 21 . XZ Tauri System Ejects Gas Bubble . ... Explanation: Why is the binary star system XZ Tauri emitting a hot bubble of expanding gas? ... The XZ Tauri star system is known to reside in the Taurus star forming region located about 500 light-years away. ... The bubble has been expanding over the past thirty years and now extends to nearly fifteen times the binary separation. Tomorrow's picture: Star Cluster . ... About APOD | ...

... Bad Astronomy . ... Bitesize Astronomy . ... If you thought our tour of the solar system ended with Neptune and Pluto, you are setting your sights way too low. The planets of the solar system mark time relatively close to the Sun compared to interstellar space. Pluto orbits the Sun at an average distance 40 times that of the Earth, yet the nearest star (the Alpha Centauri system) to the solar system is a mind-numbing 260,000 times the distance of the Earth to the Sun. ... 2008 Phil Plait. ...