... More on 51 Peg: . The discovery of a Jupiter--mass planet in orbit around the solar--type star 51Peg has been reported by Michel Mayor and Didier Queloz (Geneva Observatory) on October 6th at the 9th Cambridge workshop on "cool stars, stellar systems, and the sun" held at Florence (Italy). ... Recall that the measurements of radial velocity only yield v sin i which in turn gives us M sin i. For most values of i, sin i will be greater than 0.5 and this gives a mass estimate of 0.5 Jupiter masses. ...

... Bad Astronomy . ... Mad Science . ... Site Info . ... Public Talks . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Who is this guy who calls himself "The Bad Astronomer?" ... First, yes, I am a real live astronomer (when people ask me what astronomers do, I tell them "They astronom !" ... These are emitted by powerful objects like black holes, exploding stars, and super-dense neutrons stars. ... Finally, am I really a bad astronomer? ... 2008 Phil Plait. ...

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The small solids. Asteroids or the small planetes . ... The comets. ... Ceneca the Young.Procuring about the nature.63 y. The comet is a celestial body of a great size, but a rare one... transparent. Sometimes there seen a core and the medium forms a kind of a tail, beard or dishevelled looks. ... The core is an ice body - conglomeration of frosted gas and dust. ... The comet state is variable: ones have the con tails, others the dust tails, and the third have both. ... Meteors and meteorites. ...

ALBUM: discovery Artist: Mike Oldfield Album: Discovery In progress, source album cover additions to datta@cs.uwp.edu @ SONG : To France Talking on Water Sailing a restless sea From a memory A fantasy The wind carries Into white water Fare from the islands Don't you know you're Never going to get to France Mary Queen of chance will they find you Never going to get to ...

... CI Cam (XTE J0421+560) is an X-ray transient and a binary system the optical companion, which shows the B[e] phenomenon. ... The centroid velocities of the following emission lines were measured: FeII (5 lines), [N II] 5754.59A (NIST Database), H_alpha, H_beta, HeI (5 lines), and [O III] 5006.843A. FeII and [N II] lines that form in the cool equatorial disk wind of B[e] star have stable sharp-edge profiles. ... All the FeII lines and the [N II] line in our spectra show a linear shift with time. ...

Astronomers have found a radio pulsar with a companion at least 11 times the mass of the Sun - the most massive pulsar companion known. The identity of the companion is uncertain: it may be a massive late-type (red) star, a massive but compact blue star, or possibly a black hole. ... The probability of this late-type star being there by chance, and not being the pulsar companion, is only about 1.3%," says team member Dr. Fernando Camilo of Columbia University. ... So what can the companion be? ...

... Recent Topics . ... MAO main . ... Swift: 10 years of discovery, conference reminder . ... Кому: Ця електронна адреса захищена в?д спам-бот?в. вам потр?бно ув?мкнути JavaScript, щоб побачити ?? ... Отправленные: Понедельник, 19 Май 2014 г 12:30:38 . Тема: > > : Swift: 10 years of discovery, conference reminder . В?д: SWIFT 10 Years Meeting [ Ця електронна адреса захищена в?д спам-бот?в. вам потр?бно ув?мкнути JavaScript, щоб побачити ?? ... Swift: 10 years of discovery? ...

... 2006 . ... На прошлой неделе руководство NASA объявило о том, что следующий запуск "шаттла", ранее запланированный на сентябрь этого года, состоится не раньше марта 2006 г. Причем было сказано, что следующей миссией будет STS-121 и ее будет выполнять опять "шаттл" Discovery, а "шаттл" Atlantis, который должен был лететь в сентябре, опять будет вторым в очереди. ... Как сообщается, он доставит туда очередные сегменты каркаса станции, которые слишком тяжелы для "шаттла" Discovery. ...

... Astrophysics Group . ... Pulsars . ... Stars ? ... The array was designed to detect compact radio sources such as these by virtue of the fact that they would scintillate (twinkle) when observed from the Earth through the interplanetary medium ? ... One of Antony Hewish?s research students, Jocelyn Bell, was set the task of operating the telescope and inspecting the daily charts for the kind deflections in the trace which occurred when a scintillating source passed over the array. ...

... The effect is strongest in the most evolved, high-latitude supergiant V5112 Sgr=IRAS19500-1709, which has an extended structured envelope (Figs.1 and 2). In the optical spectrum of this object, the BaII ion lines are split into three components (Figs.3 and 4). ... Thus, we discovered for the first time the enrichment of the stellar envelope with heavy metals produced at the AGB stage. ... Detection of heavy-metal lines in the spectrum of the circumstellar envelope of a post-AGB star. ...

GRANAT is the Russian x-ray sattelite launched to the high apogee orbit (200,000 km) and operated almost for 10 years (1989 -1999) , carrying out four major instruments: French SIGMA coded-mask hard x-ray telescope (30-1000 keV), Soviet ART-P coded-mask telescope (2??-60?? keV), all-sky monitor WATCH (6-150 keV), and a gamma-burst detector PHEBUS . ... Since September 1994, GRANAT is in the survey mode. ... Explore pages devoted to individual GRANAT instruments (including main scientific results): . ...

... To avoid extensive numerical calculations in the statistical simulations, we treat the continuous evolution of each binary component as a sequence of a finite number of basic evolutionary states (for example, main sequence, red (super)giant, helium (Wolf-Rayet) star,     hot WD), in which stellar parameters significantly differ from each other. ... Figure 2: Schematic representation of the typical evolutionary track of a massive binary system with normal and compact star stages indicated. ...

. Computer Ephemeris. Elements of osculating planetary orbits. Explanations. Each row contains at 0h of Time Dynamical Terrestrial of specified date in system of mean equator and ecliptic J2000.0 the ecliptic osculating elements of heliocentric orbit: inclination of orbital plane (degrees), longitude of ascending node (degrees), argument of perigelion (degrees), semimajor axis (astronomical units), mean motion (degrees per day), eccentricity (dimensionless), mean anomaly (degrees).

... STEPS OF ISS ASSEMBLY . ... STEPS OF THE ISS ASSEMBLY All flights 09/30/2009 - up to now 11/15/2008 - 09/30/2009 10/23/2007 - 10/24/2008 12/10/2006 - 10/21/2007 02/28/2005 - 10/26/2006 02/28/2005 - 09/08/2005 04/19/2004 - 02/27/2005 04/26/2003 - 05/24/2004 09/25/2002 - 02/04/2003 04/25/2002 - 09/24/2002 11/26/2001 - 04/15/2002 06/12/2001 - 10/31/2001 02/26/2001 - 05/23/2001 10/12/2000 - 02/20/2001 08/06/2000 - 09/20/2000 07/12/2000 - 07/26/2000 11/20/1998 - 05/29/2000 . ... Station element . ...

... 8, ``Celestial Mechanics'', 2002 Symplectic integrators for studying the long­term evolution of high­eccentricity orbits V. V. Emel'yanenko South Ural University, Chelyabinsk, Russia Discoveries of many new objects moving on high­eccentricity orbits in the Solar system and beyond have highlighted the importance of modeling the long­ term evolution of such orbits. ... Astron. ... Preto M., Tremaine S. A class of symplectic integrators with adaptive timestep for separable Hamiltonian systems. ...

... Posts tagged ?orbit? ... There is a new report from Bernabei et al. ( arXiv:0804.2741 ) of the direct detection of the effects of Dark Matter that is causing a lot of buzz. ... Tags: arXiv , DAMA , dark matter , Earth , modulation , orbit , scintillation , systematic error , year . Category: arXiv , News | 2 Comments . ... Entries RSS . Comments RSS . ... vlk on [MADS] Parallel Coordinates . upvc windows on [MADS] Parallel Coordinates . ... Entries (RSS) and Comments (RSS) . ...

Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

Next: PHOTTONAT Up: LARGESCALESENS Previous: Generation from Ground Calibration Contents . The basic idea is to obtain a supersky flatfield by combining a large number of relatively object-free exposures of random fields. ... Most suitable datasets are data from default configurations, because the entire detector area is covered. ... normalize images by average counts per pixel and stack images . add stack of images . weighting with square root of avg. counts per pixel . ...

... ASTEROID’S MOONS : DISCOVERY BY RADAR . ... Moons of known asteroids have a low position ambiguity, which makes their discovery with powerful ground-based radar much easier than the discovery of new asteroids or other objects of Solar System. ... The other technique is a direct detection of radar echo from an asteroid moon. ... However, the diameter of a ground-based fully-steerable reflector is limited by 120-150 m to make it possible to perform two different functions: focusing and tracking (fig. ...