Deep Time: Earth's history and future By Colin Johnston, Armagh Planetarium Earth 4.54 billion years ago Forms in Sun's protoplanetary disc S un Elsewhere in Solar System Other planets form. ... Hot and airless Sun a subgiant, diameter 1.5 its current value, 2 6.4 billion years from no w ? ... Earth cools 20 million years later? ... Core temperature about 55 million°C, helium flash, followed by the Sun shrinking Sun is 10 times its current diameter, luminosity 20-50% current value. ...

The Discovery of the Galilean Satellites . ... Probably the most significent contribution that Galileo Galilei made to science was the discovery of the four satellites around Jupiter that are now named in his honor. Galileo first observed the moons of Jupiter on January 7, 1610 through a homemade telescope. He originally thought he saw three stars near Jupiter, strung out in a line through the planet. ... Galileo's Observations of Jupiter's Moons . ... Jupiter . ...

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... Star Atlas . ... Behemoth black hole found in an unlikely place . ... black holes . ... If a supernovaт??s original star is massive enough to form a black hole, why is there any explosion? Why doesnт??t the entire mass of the original star simply fall onto the newly formed black hole and instantly vanish? ... For some massive stars, it may be possible that collapse leads directly to the formation of a black hole with no explosion. ... Get instant access to subscriber content on Astronomy.com! ...

... The related observations clearly evidence both global motions and turbulence in the upper Jovian atmosphere. Keywords: solar system, giant planets, atmospheres, Jupiter . To explain both an upper atmospheric thermal excess observed in the Jupiter atmosphere by the Voyager missions and a permanent enhancement of the H Ly- brightness observed near the equator (Clarke et al. ... These Doppler shifts appear as being the signature of global H motions in the upper atmosphere of Jupiter. ...

An extensive analysis of the Maria family is presented. ... This is also confirmed by an analysis of the size distribution of the family, suggesting that about 10 objects in the 15--30 km size range have been probably lost. As a consequence, Maria's family can be seen as one of the most promising candidates as the source of the ``giant'' near--Earth asteroids 433 Eros and 1036 Ganymed. ... The obtained spectra are very similar and very much resemble the known spectra of Eros and Ganymed. ...

... The annual ATNF student symposium is being held on Wednesday 26 th of April at ATNF Headquarters, Sydney. The symposium began in 1998 and was originally designed to allow higher degree students the opportunity to present their research to fellow students and staff. The idea of the symposium is to provide an informal atmosphere where ATNF affiliated students can present their work and allow ATNF staff and visitors to be informed of current research. ... discussion of global results; . ...

... Астронет | ... планета Астронет | ... N. Bochkarev . ... The new 2-M RCC telescope in the northern caucasus for modern astronomical research . ... Basic magnetic field configurations for filament channels and filaments . ... An excitement of the gravitational and acoustic waves in the solar atmosphere caused by the inhomogeneous flow . ... Solar cycle variation of the solar corona shape: A new outlook . ... The collision of the comet Shoemaker - Levy 9 with Jupiter . ...

Profile" is a proposed multi-spacecraft mission to the Earth's magnetosphere. ... Click here for that list, also listed as appendix to "Science Closure" of the "" Multiprobe Mission " below. The 1997 Fall Meeting of the AGU , held in San Francisco December 8-12, included a special session Science Closure and Enabling Technologies for Magnetospheric Constellation Missions At that session, a talk and a poster on "Profile" were presented by D.P. Stern: . ... Science Tasks for "Profile". ...

... November 27, 1996 . Storm Clouds Over Jupiter . Credit: The Galileo Project , JPL , NASA . Explanation : Storm clouds , similar to the familiar cumulonimbus thunderheads of Earth , appear to be present on Jupiter. ... The false colors represent altitude. Low altitude clouds are blue, high, thick clouds are white and high, thin clouds are pink, with the box at the upper right containing the high cloud features likened to the storm clouds of Earth. ... About APOD . ...

... ESO, the European Southern Observatory . ... Video News Releases . ... New on eso.org . ... ESO News . ... The Comet€аMcNaught€а2007 . ... SL-9 and Jupiter - 1994 . ... The newest results of the associated investigations will be discussed at a scientific Workshop at ESO and presented to the media at a subsequent Press Conference on February 15, 1995. ... This conference will be held at the end of the Workshop and will provide a thorough overview of the latest results, as presented during the meeting...

... Document Title | Document Number | ... The code uses fields: category, system, subsystem, EMA, vendor, and a sequential number. ... Previous Document Number This is a TEXT field and represents the document number that preceeds the found document in the set of original documents supplied by the engineer/vendor. ... Next Document Number This is a TEXT field and represents the document number that follows the found document in the set of original documents supplied by the engineer/vendor. ...

... Meta Index / Home Page . omthlcplot reads the OM tracking history FITS file and then plots the intensity of each star as a time series. omthlcplot is flexible enough to present each time series on a separate page, on several pages or all the time series may be presented on a single page, specified using the parameter nplots . ... The input FITS files, such as those that have ben produced by omthconv , can contain between 1 and 99 rates columns, with equi-spaced time bins. ...

SAI, graduates year 1982. ... Note: when just a 7-digit phone number is shown, it refers to a phone located in Moscow (international access 007-495). "+" in front of a number means that you must dial an international access code first (or just press "+" on your mobile phone keypad). ... 939-1672(work); . ... Ataev Sasha . 1-(703)-536-8881(home) (USA); . ... Bychkov Sergey . ... 1-(410)-740-8205(home), +1-(301)-286-2150(work) (USA); . ... 1-(412)-767-0332(home), +1-(412)-608-9339(mobile) (USA); . ...

... Shortly after its discovery it was determined to be in a highly elliptical path near Jupiter and on a collision course. ... T he size and mass of the original body and the individual fragments is as of this writing still highly uncertain. ... B etween 16 July 1994 and 22 July 1994 the fragments impacted the upper atmosphere of Jupiter. ... T he pictures were posted to the Net within hours of the impacts and caused severe overloading on some ftp and WWW sites. ... JPL's SL9 page . ... Small Bodies .....

Загрузить программу (~10 MB). ... Программа izmccd предназначена для высокоточной астрометрической обработки числовых изображений небесных объектов. Программа позволяет получать как измеренные, так и экваториальные координаты малых планет, комет, спутников больших планет, визуально-двойных звезд и других объектов, а также идентифицировать уже известные малые планеты и найти на числовых изображениях движущиеся объекты. ... Программа является бесплатной. ... Автоматическая обработка, один объект. ...

... The Digitized Sky Survey is now available on CD-ROMs and will be on the ST ScI archive. ... ST ScI has digitized Schmidt plates of the entire Sky. ... The software then accesses the data, decompresses the scans and returns the data in a form of a photographic intensity as a function of x and y plate pixel coordinates. ... accesses the Digitized Sky Survey (DSS) CD ROMs and decompressed the data returning a photographic intensity as a function of x and y pixel coordinates. ...

The original files with the data were in different formats. ... Such files were named "standard data files" and linked to the database. They can be easily transformed to any desirable format by a code. Here we present two simple computer programs of this kind. ... When running the code, you can specify columns in the output file: wavelength, energy (eV) or wavenumber (cm -1 ) as the first column, and complex refractive index or dielectric function as the second and third columns. ...

... Column 1 gives the object name from the Case or Markarian catalogs. ... For Markarian galaxies the errors of coordinates usually lie inside 2'' (Lipovetsky [ 1983 ]). Column 4 gives the eye-estimated apparent blue magnitudes according to the same sources. ... Other names of a galaxy we give in column 7. ... In column 3 we cite the original emission-line code of the galaxy for the strength of [O III ] doublet according to the Case catalog (s - strong, m - medium, w - weak). ...

... The original pro of used the fact that () any two such embeddings are related by isotopy and crossing changes, where edges are allowed to pass through each other. ... Lemma 5 is obviously false as stated: the sum should be over all unordered pairs of disjoint edges, i.e. it should be fact (), and this is what is assumed in the pro of. In the earlier argument, at the top of p.4, this do esn't matter because here, edges e and e that share a vertex automatically have lk (e, e ) = 0.) ...