Astronomy Picture of the Day . A Shadow on the Rings of Saturn . ... Credit Copyright: Cassini Imaging Team , SSI , JPL , ESA , NASA Explanation: This picture of Saturn could not have been taken from Earth. No Earth based picture could possibly view the night side of Saturn and the corresponding shadow cast across Saturn's rings. Since Earth is much closer to the Sun than Saturn, only the day side of the planet is visible from the Earth. ... In the Shadow of Saturns Rings . ...

... Solar System . ... Planets . ... Saturn is the sixth planet from the Sun and is the second largest in the solar system. A day on Saturn is 10 hours 39 minutes long, and it takes 29.5 Earth years to revolve about the Sun.€аThe atmosphere is primarily composed of hydrogen with small amounts of helium and methane.€аAt the last count it had 62 Moons, but it is another feature of this gas planet which makes it spectacular, its ring system. ... The first man to notice the rings of Saturn was Galileo. ...

... Press Release Images . Individual Images . ... The right-hand image shows Hubble's close-up view of the galaxy's core, taken in December 1995 by the Wide Field and Planetary Camera 2. The bluish-purple clumps that form the ring are the clusters of infant stars. Two dark, wispy lanes of dust and a pair of blue spiral arms are just outside the star-forming ring. ... The gas is trapped inside the ring through the stars' gravitational attraction. ... Amazing Space | ...

... The package includes a new ``hybrid'' symplectic integrator capable of handling close encounters, described at the conference: The Impact of Modern Dynamics in Astronomy , Namur, Belgium (Chambers 1998). ... NRC Research Associate, NASA/Ames Research Center , Moffett Field CA, USA, planetary accretion, formation of the asteroid belt and extra-solar planets. ... G.Laughlin and J.E.Chambers (2002) Astronomical Journal, , in press. ... American Astron. ... Home page of planet hunters Marcy and Butler ....

. My astronomical research interests center on galaxy structure and evolution. Current topics include: . Polar-ring and interacting galaxies (see also new catalogue ) . Galaxy warps: statistics, properties and origin . Spiral galaxies at z~1: radial and vertical structure of stellar disks, statistics of interactions . Surface photometry and kinematics, dynamical modeling . Observational cosmology . Joomla Counter since Sep 1997

. Caption above photo . Charlie Briegel, Bill Boroski, and Steve Bastian started work on the fiducial and motion systems. Bill Nagel is also on site to review the systems and help in these efforts. Friction has caused an evaluation of the cone bearing. Here the ring seal is removed. The ring is raised and the bearing exposed. Close-up of the bearings. The lubrication protecting the bearings is being drained. Further evaluation continues. Photos taken by Gretchen Van Doren/APO.

. To see a Russian version of this page click here . (Senior Researcher. Graduated from Moscow State University (MSU) in 1982, Ph.D. 1986, MSU) . A member of EAS and IAU. Fields of interest: hot massive stars, close binary systems: optical photometric and spectral observations, X-ray observations; ill-posed problems, X-ray astrophysics. My publications (ADS link) . Linux on CLEVO 8750 (old stuff) . Phones/addresses of my university mates graduated in 1982. E-mail: igor@sai.msu.ru .

... A.M.Mel'nik and P. Rautiainen / Straight segments in the galactic discs , MNRAS, 2013, Vol. 434, pp. 1362-1375, full text . ... 2010, Vol. 519, pp. 70-82, full text . A.M.Mel'nik and A.K.Dambis / Kinematics of OB-associations and the new reduction of the Hipparcos data , MNRAS, 2009, Vol. 400, pp. 518-523, full text . ... A.M.Mel'nik and P.Rautiainen / Kinematics of the Outer Pseudorings and the Spiral Structure of the Galaxy , Astronomy Letters, 2009, Vol. 35, pp. 609-624. full text . ...

... were entered in the atlas. ... In so doing lines were selected which yielded radial velocities close to the symbiotic velocity of MWC 560 (+35 km/s). ... The visible spectrum of MWC 560 is poor in absorption lines especially near the brightness maximum. In our atlas are visible only the blue-shifted components of , , NaI and FeII(42), interstellar lines NaI, a few diffuse interstellar bands (DIB) and telluric lines of and and, at length, traces of the spectra of the M giant. ...

. General Information . Media Files . Participants . Timetable . Local Information . Photos . Dear Participants! . We would like to thank everybody for coming and we hope that conference was fruitful for you. According to decision that was taken during discussion on the first day of the conference all presentations will be published on this website in section Media Files (with references from timetable) starting with summary of conference by Marc Sarazin.

... Galaxies with polar rings (PRGs) are a unique class of extragalactic objects, consisting of a ring or disk of gas, stars and dust orbiting in a plane nearly perpendicular to the disk of a central galaxy. ... At present, there are only about two dozen kinematically confirmed galaxies in this PRG class, mostly from the Whitmore et al. (1990) catalogue, based on photographic images. ... Examples of object from our catalogue SPRC (=SDSS-based Polar Ring Catalogue). ...

... Main . ... The RadioAstron is an international space VLBI project led by the Astro Space Center of Lebedev Physical Institute in Moscow, Russia. ... List of organizations which were taken part in developing of the project and now support the RadioAstron mission is presented here . The RadioAstron Newsletter # 29 , July 18, 2015. RadioAstron Announcement of Opportunity - 4 for observations from July 2016 to June 2017 inclusive. ... 2.7, December 17, 2015 : English version. ... Main ASC . ...

... Ring Ring Nina, Pretty Ballerina The Album (1977) Voulez Vous (1979) --------- ----------- Eagle As Good As New Take A Chance On Me Voulez-Vous One Man, One Woman I Have A Dream The Name Of The Game Angel Eyes Move On The King Has Lost His Crown Hole In Your Soul Does Your ... Music If It Wasn't For The Nights I Wonder (Departure) Chiquitita I'm A Marionette Lovers (Live A Little Longer) Kisses Of Fire Super Trouper (1980) The ...

Кольца Сатурна . История открытия колец достойна подробного изложения . ... Они совершили уже около триллиона оборотов вокруг своей оси и каждая макрочастица кольца испытала за это время порядка ста миллиардов столкновений с другими частицами. ... После того, как "Вояджеры" обнаружили структуру колец, напоминающую граммофонную пластинку, большую популярность получила теория спутников-пастухов, якобы сотнями существующих в кольце и проделывающих в сплошном диске из частиц пустые бороздки. ...

... Courtesy of NASA/ESA Observation data (J2000 epoch) Constellation Right ascension Declination Redshift Distance Type Serpens Caput 15h 17m 14.4s[] +21° 35 08[] 12,740±50 km/s[][1] 600±30 Mly (183±8 Mpc)[1] SA0(r) [citation needed ] [a] Apparent dimensions (V) 0.28 в 0.28[] Apparent magnitude (V) 16.0[] Notable features Ring galaxy Other designations PGC 54559,[] PRC D-51[] See also: Galaxy, List of galaxies Hoag's Object is a non-typical galaxy of the type known as a ring galaxy. ...

. True Color Image Gallery: Galactic SNR | Magellanic Cloud SNR . Images show regions used to extract spectra . Regions with red strikes are excluded . Background was subtracted from a region around or close to the SNR. Back to G337.2-00.7 Index . Chandra Supernova Remnant Catalog . Main Page | Galactic SNR | Magellanic Cloud SNR . True Color Image Gallery: Galactic SNR | Magellanic Cloud SNR .

... S. G. Pugacheva. Sternberg State Astronomical Institute, Moscow, 119899, Russia, pugach@sai.msu.ru . ... Sternberg State Astronomical Institute, Moscow University, Russia, pugach@sai.msu.ru . ... Sternberg State Astronomical Institute, Moscow University, 13 Universitetsky pr., ... Sternberg State Astronomical Institute, Lomonosov Moscow State University, Universitetskii pr. ... S. G. Pugacheva and V. V. Shevchenko, Sternberg State Astronomical Institute, Moscow University, 13 Universitetsky pr., ...

GCVS Research Group: . Recent publications . Kazarovets E.V., Samus N.N., Durlevich O.V., Kireeva N.N., Pastukhova E.N., The 81st Name-List of Variable Stars. ... Kazarovets E.V., Samus N.N., Durlevich O.V., Kireeva N.N., Pastukhova E.N., The 80th Name-List of Variable Stars. ... Samus N.N., Kazarovets E.V., Kireeva N.N., Pastukhova E.N., Durlevich O.V. General Catalogue of Variable Stars: Current status and new Name-lists Odessa Astronomical Publications, 2010, V. 23, p. 102-105. ...

Computer Ephemeris. Ephemeris for physical observations of Saturnian rings. Explanations. ... semimajor axis of outer ring - a - (seconds), . ... planetocentric longitude of the Earth minus 180 o - U - (degrees) . ... position angle of semiminor axis of the rings- P - (degrees) . ... heliocentric position angle of semiminor axis of the rings - P' - (degrees) . angular distance from ascending node of the rings on Earth's equator to ascending node of the rings on ecliptic- omega - (degrees) ...

... title='Maison Close - Jardin Imperial - Пояс для чулок - Черный-золотой цвет' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> . Цвет Пурпурный . ... Цвет: слоновая кость, . ... Цвет: черный . ... Цвет: голубой . ... Idigo Масса для моделирования 12 цветов 240 г - Idigo - Idigo . ...