... 10.04.2016 . Credit Copyright: Cassini Imaging Team , SWRI , JPL , ESA , NASA Explanation: Cassini, a robot spacecraft launched in 1997 by NASA , became close enough in 2002 to resolve many rings and moons of its destination planet: Saturn . ... Saturn's rings and cloud-tops are visible toward the image bottom, while Titan , its largest moon, is visible as the speck toward the top. ... April 2016 . ... Publications with keywords: Saturn - Titan . Publications with words: Saturn - Titan . ...

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• Dione, Rings, Shadows, Saturn
• XWare > APOD
• A Shadow on the Rings of Saturn

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2007 April 10 . Saturn from Below . Credit: CICLOPS , JPL , ESA , NASA . Explanation: Swooping below Saturn, the Cassini spacecraft spied several strange wonders. ... In the foreground looms the gigantic world itself, covered with white dots that are clouds high in Saturn 's thick atmosphere. ... About APOD | ...

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• APOD: 2005 April 18 - Saturnian Moon and Rings
• APOD: 2006 April 5 - Slightly Beneath Saturn's Ring Plane
• APOD: 2015 April 5 - Saturn, Tethys, Rings, and Shadows

Moon, Planets And Aurora, Oh My! Articles | ... Moon | ... How often do we see several planets and the Moon together? ... Then I look northeast and see more red through all the light pollution of Washington, D.C. I snapped this 15 second photo. ... What started out as a father son photographic safari for rare planet conjunctions turned into a spectacular night of memories. ... Aha, I see some red light near Orion. ... A Very Rare Red Aurora in Northern Virginia, . ... www.astronomy.net . ...

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... Bad Astronomy . ... Bitesize Astronomy . ... Have you ever looked at pictures of Saturn's rings and noticed what look like gaps in the rings? ... Gian Domenico Cassini discovered a large gap in Saturn's rings in 1675. Later, an astronomer named Encke discovered a smaller gap near the edge of the rings. ... It was found long ago that an orbit in the Cassini Division, as the large gap is named, has a period almost exactly one-half that of one of Saturn's moons named Mimas. ... 2008 Phil Plait. ...

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... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

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• Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets,
• Saturn's invisible ring | Astronomy.com
• NASA's Cassini spacecraft observes meteoroids colliding with Saturn's rings |

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... Posted on December 5, 2014 | 4 Comments The December skies mark my favourite time of the year for stargazing. ... Continue Reading.. Posted on June 10, 2014 | ... Posted on April 30, 2014 | ... 2 Comments The year 2014 could see the first 3D printer brought into space, the first fare-paying passengers leave Planet Earth on the Virgin Galactic and the first test mission of a [ ] . ... Posted on October 28, 2013 | ...

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• Virgo | Astronotes
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• The bluffer?s guide to Saturn | Astronotes

... Running Rings Around a Planet . ... Saturn's delicate rings have caught human eyes for over three centuries. ... Now we know, thanks to the Voyager space probes, that Saturn's rings consist of thousands of "ringlets," each made of chunks of ice ranging in size from dust to boulders [see "Rally Around the Ring," March/April 1995, p. 10]. ... The appearance of Saturn's rings to us ground-hugging Terrans is changing constantly. ... Saturn's diameter is 120,000 kilometers, so how large are the rings? ...

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• ASP: Lord of the Rings
• ASP: Contents, March/April 1995
• ASP: A Titan-ic Mission

... ATNF Home . ... About ATNF overview . News | ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Mopra radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Now, new Australia Telescope observations of the polar ring galaxy NGC 4650a suggest that the dark matter in this galaxy lies in a flattened distribution aligned with the polar ring. ...

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• New HI observations of the prototype Polar Ring galaxy NGC 4650A
• CO Observations of the -Orionis Ring
• Australia Telescope National Facility

... Saturn is the sixth planet from the Sun , and the second largest in the solar system . Saturn's most distinctive feature is its ring system . ... Saturn has an internal magnetic field with a dipole aligned with the rotation axis (Ness et al., ... The solar wind and Saturn's rings and satellites supply the particles that are trapped in the radiation belts. ... Between the inner and outer satellites orbits Titan, Saturn's largest moon (larger than the planet Mercury ). ... Res., ...

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• The Io Dynamo
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... STScI-PRC98-18 AN INFRARED VIEW OF SATURN In honor of NASA Hubble Space Telescope's eighth anniversary, we have gift wrapped Saturn in vivid colors. ... This view provides detailed information on the clouds and hazes in Saturn's atmosphere. ... The green and yellow colors indicate a haze above the main cloud layer. ... Red clouds are even higher than orange clouds. ... This Saturn image was taken at longer infrared wavelengths of 1.0, 1.8, and 2.1 micrometers, displayed as blue, green, and red. ...

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• http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/ISM/NGC6751.txt
• Voyager
• Voyager Jupiter Science Summary

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Armagh Observatory, 11 June 2015: Armagh Observatory reports that the next two weeks will provide an interesting opportunity to observe the brightest planet, Venus, and the largest planet, Jupiter, as they move towards one another in the evening twilight. ... The image shows the sky view towards the West at around 11pm on 20 June 2015. ... Professor Mark E. Bailey, Armagh Observatory, College Hill, Armagh BT61 9DG. ...

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• John Chambers Home Page

... A dynamo is created in a magnetic field by an electric circuit, part of which is moving relative to the rest (additional conditions must also be met). ... Furthermore, the plasma between them conducts electricity very well along its magnetic field lines, which act as if they were wires connecting Io and the planet (drawing). ... The drawing is not to scale. ... The Hubble Space Telescope , using its Wide Field and Planetary Camera 2, has been photographing auroras of the planet Jupiter. ...

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• The Acceleration of the Aurora
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Influence of Asteroids and Trans-Neptunian Objects on the Motion of Major Planets and Masses of the Asteroid Main Belt and the TNO Ring . ... Perturbations from asteroids and Trans-Neptunian Objects (TNOs) produce a significant effect on the orbits of planets and should be taken into account when high-accuracy planetary ephemerides are constructed. On the other hand, from an analysis of motion of the major planets some physical parameters of the asteroids and TNOs may be obtained. ...

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• NAA 2011-2012 (preface)
• Laboratory of minor bodies of Solar system
• (Untitled)

... Since planets are expected to form out of the material in disks around young stars, the formation of a planet will thoroughly alter the structure of the circumstellar disk of their host star, forming significant gaps in the radial distribution of matter around the star. Additionally, processing of solids (annealing/crystallization) and changes in the overall gas/dust ratio are thought to happen during the planet formation process and are believed to alter the observational signature of the disk. ...

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• Planets shepherding material into a narrow ring around Fomalhaut
• Los Cielos de Am , The darkest sky and the two galactic hemispheres
• Planets shepherding material into a narrow ring around Fomalhaut | ESO

Saturn: The beauty of the rings. Saturn . ... Belongs to the giant planets . It has no definite solid surface. ... The free fall acceleration at the Saturn surface near equator is 9,06 m/s^2 . ... In the centre of the planet the temperature is about 20000K. The satellites . ... The rings of Saturn . ... It is proved that Saturn's rings (as well as the other planet's) are the fragments of the great cloud being near the planet with million kilometres length (see how the rings were formed ). ...

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• proishkoletse
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Top] [Prev] [Next] . Serpens SVS 20 is a binary pre-main sequence star, whose components are separated by 1.5 arcsec. Although of very different brightness, both components have the same spectral energy distribution in the range 0.9 to 5 microns. Eiroa and Casali (1992) discovered that SVS 20 had a arc-shaped nebulosity, departing from the binary star towards the southwest. ...

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• Research Interests
• HST this week: 099
• HST this week: 714

... Forthcoming Occultations of Astrometric Radio Sources by Planets , IVS 2010 General Meeting Proceedings, p.320­324 http://ivscc.gsfc.nasa.gov/publications/gm2010/lvov.pdf Forthcoming Occultations of Astrometric Radio Sources by Planets Victor L'vov, Zinovy Malkin, Svetlana Tsekmeister Central Astronomical Observatory at Pulkovo of Russian Academy of Sciences Contact ... Occultations of Astrometric Radio Sources by Planets Table 1. ...

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• Pulkovo NEO Page: General Information

BOOK REVIEWS 607 attention and students. ... With the publication of Planets and Life, a textbook for graduate students and upper level undergraduates, astrobiology is taking another large step towards formalizing itself as an established multidisciplinary field. ... This book combines reviews of existing evidence for mantle plumes with the results from recent studies and uses them to understand the upper mantle structure beneath several of the world's volcanic regions. ... Planets and Life. ...

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• http://www.mso.anu.edu.au/seminars/abstracts/20150917-1100.html
• David Nicholls: CV and publications
• Siding Spring Survey Follow-up Obs

... PUBLIC LECTURE - APRIL 12, 2016 . New Discoveries in the Outer Solar System: Ceres, Pluto and Planet X . ... Dr. Green will talk about "New Discoveries in the Outer Solar System: Ceres, Pluto, and Planet X". ... Beginning in 1992 planetary astronomers began to find Pluto like objects beyond the orbit of Neptune showing us that Pluto was a member of an entirely new family of objects we now call the Kuiper Belt. ... Amateur Astronomers Association of Princeton, Inc., ...

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... 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. ...

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• U of O High Energy Physics Seminars
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