... The Comet and the Galaxy . ... The Moon almost ruined this photograph. During late March and early April 1997, Comet Hale-Bopp passed nearly in front of the Andromeda Galaxy. Here the Great Comet of 1997 and the Great Galaxy in Andromeda were photographed together on 1997 March 24th. ... Twenty years ago this month, NASA's Voyager 1 spacecraft flew past Jupiter and its moons. ... Add another 8-meter telescope to the list of modern optical telescope giants. ... A Jupiter Venus Conjunction . ...

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... Feeding the Monster: Gas Caught in its Death Spiral into a Massive Black Hole . ... Stromlo Professor Mike Dopita have used the Hubble Space Telescope to discover how a massive Black Hole in a nearby galaxy feeds itself. ... Earlier Hubble Telescope data obtained by another team member, Professor Holland Ford of Johns Hopkins University in Baltimore, Maryland, had found a disk of gas rushing around the Black Hole at a speed of 500 kilometers a second. ...

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... March 16, 1999 . Sigmoids Predict Solar Eruptions . Credit: Yohkoh Project , SXT Group , NASA , ISAS . ... Solar explosions have been discovered to explode preferentially from regions marked with this letter. ... If the two regions pass close enough and in just the right way, however, an X-ray bright S-shaped region called a sigmoid forms and quickly explodes in a Coronal Mass Ejection (CME). ... About APOD > . ... NASA Technical Rep.: ... A service of: LHEA at NASA / GSFC . ...

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• APOD: 2000 March 17 - Martian Dust Devil Trails
• APOD: March 15, 1999 - Happy Face Crater on Mars
• APOD: 2004 April 14 - Massive Star Forming Region DR21 in Infrared

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Planets . ... This bizarrely shrunken planetary system was found by NASAтАЩs Kepler mission, hence the parent star has been named Kepler-11. ... Planetary scientist and Kepler science team member Jack Lissauer said ?These six planets are mixtures of rock and gases, possibly including water.тАЭ €аNone of these strange new worlds are likely to be home to any form of life; their surface conditions are simply too extreme. ...

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• VP113 Comes Out of the Darkness | Astronotes
• Neptune: discovered one year ago | Astronotes
• New Horizons at Pluto | Astronotes

... When the Voyager 2 spacecraft flew by the planet Uranus in January 1986, astronomers were treated to their first close-up glimpse of the satellites that orbit the seventh planet. ... But by far the most intriguing of those 15 satellites was a jigsaw-puzzle world called Miranda . ... How dark was it at Miranda? One of the Voyager scientists put it this way: Taking pictures in the Uranus system is like trying to do photography in a ballpark at night when the only light comes from a single candle. ...

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• ASP: Mercury Magazine
• Astronomical Society
• ASP: Astronomy in the News

Region markers can be moved, resized, rotated, zoomed, deleted, and can change geometric type. ... For example, markers placed on astronomical catalog positions should be fixed so that one cannot accidentally move them off the specified position. ... Parameters can be fixed using the fix option of the regions public access point (for fixing classes of markers) or by means of a fix keyword in the definition of an externally loaded marker. ... In the command: echo "regions fix all -position -size" | ...

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• Region Names and Colors
• The Markers Menu
• Region Markers

... Berezhnoy A.A., Kozlova E.A., Shevchenko V.V. Sternberg State Astronomical Institute, Moscow University, Russia, Moscow, Universitetski pr., 13, 199992. katk@sai.msu.ru According to the data from "Lunar Prospector" [1] the areas of high hydrogen content in the lunar south pole region coincide with the areas of such craters as Faustini (87.2є S, 75.8є E), Cabeus (85.2є S, 323є E) and other crates. ... We estimate the total permanently shadowed area in the lunar northern polar region at 28 260,2 km2. ...

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• http://selena.sai.msu.ru/Kozl/Publications/ms40/50_Kozlova_Shevchenko.pdf
• http://selena.sai.msu.ru/Pug/Publications/Pugacheva%20LPS%2041.pdf
• http://selena.sai.msu.ru/Shev/Publications/m44_76_sinitsin_shevchenko.pdf

Astronomers Jonathan Horner and Wyn Evans , at the Universities of Oxford and Cambridge, and Mark Bailey and David Asher , at the Armagh Observatory, have provided new insight into the links between comets and asteroids in the outer solar system and their dynamical evolution. These bodies, many of which have diameters greater than 100 km, are called "Centaurs" because of their "half-comet, half-asteroid" status. ... In either case, the Centaurs give clues to the origin of the planetary system. ...

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• Armagh Observatory
• Extrasolar Planetary Systems: More Like Ours - by David Perez-Suarez, Armagh
• Sakurai?s Object (V4334 Sagittarii)

... UA SCIENTIST & TEAM DISCOVER SURFACE FEATURES COVER TITAN (Science contacts: Peter H. Smith, (602) 621-2725; Mark Lemmon, (602) 621-1485; UA Lunar and Planetary Laboratory) . Scientists for the first time have made images of the surface of Saturn 's giant, haze-shrouded moon, Titan. ... About three weeks before Cassini's first flyby of Titan, the spacecraft is to release the European Space Agency's Huygens Probe to parachute to Titan's surface. ... Upper left: hemisphere facing Saturn. ...

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• The Sun
• Astronomical Names
• Pluto and Charon

Scientists Discover Surface Features on Titan . ... Scientists for the first time have made images of the surface of Saturn 's giant, haze-shrouded moon, Titan. ... Peter H. Smith of the University of Arizona Lunar and Planetary Laboratory and his team took the images with the Hubble Space Telescope during 14 observing runs between Oct. ... About three weeks before Cassini's first flyby of Titan, the spacecraft is to release the European Space Agency's Huygens Probe to parachute to Titan's surface. ...

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• APOD: September 4, 1998 - Nozomi: Earth and Moon
• Kuiper Belt Objects
• Saturn's Moon Enceladus

Giant Jupiter. Jupiter . ... Jupiter has no solid surface that is why speaking about its dimensious point the radius of the upper border line of the clouds, where the presseru is about 10 KPa; radius of Jupiter on the equator is 71400 km. ... The Jupiter satellites. ... Nowadays 16 satellites of the Jupiter are known: Adrastea, Mitis, Amaltea , Phina,then 4 Galilei satellites: Io , Europe , Hanimed , Callisto , Leda, Aimalia, Zicitea, Elara, Ananke, Carme, Pasipe and Sinope. ... Jupiter's ring. ...

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• smalltelae
• venerae
• earthe

... Scientists from G. I. Budker Institute of Nuclear Physics- Syberian Branch of the Russian Academy of Science, Novosibirsk State University, Novosibirsk State Technical University, Samara State Aerospace University (SSAU) and Image Processing Systems Institute (IPSI) of the Russian Academy of Science, became the first people in the world obtained terahertz non-diffractive twisted Bessel beams and used them for the first time the formation of surface electromagnetic waves on the metal surface. ...

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• SSAU scientists will 'teach' nanosatellites to manoeuvre in orbit

... Energy . ... Solar Wind . ... Field . ... The Sun is our nearest star and the source of energy for life on Earth. ... For centuries astronomers wondered whether they were clouds floating in the Sun's atmosphere, but we now know that they really are huge regions of magnetic field, about as intense as the field at the poles of an iron magnet. For some reason the field slows down the flow of heat from the Sun's interior and keeps sunspots slightly cooler than their surroundings. ... Solar Eclipses . ...

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• The magnetosphere models
• INTERBALL TAIL PROBE SITUATION ANALYSIS
• The simulative geophysical regions cross-sections coordinates

Galaxies are diffuse objects which are imaged against a background of finite brightness and noise. Galaxies which have the maximum contrast with respect to this background are the ones that are first discovered. ... These galaxies have been missed to date but active surveys for them are underway. ... In this page we present several examples of these newly discovered Low Surface Brightness galaxies as well as examples of high surface brightness galaxies. ...

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• The Galaxy Gallery Page 6: Comparative Morphology
• Astronomy Plus CCD Images of Galaxies
• Low Surface Brightness Galaxy Gallery

... Mark C. Lee (Colonel, USAF, Ret.) NASA Astronaut (former) . ... EDUCATION: Graduated from Viroqua High School, Viroqua, Wisconsin, in 1970; received a bachelor of science degree in civil engineering from the U.S. Air Force Academy in 1974, and a master of science degree in mechanical engineering from Massachusetts Institute of Technology in 1980. ... NASA EXPERIENCE: Lee was selected as an astronaut candidate by NASA in May 1984. ... Lee retired from NASA and the Air Force effective July 1, 2001. ...

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• Astronaut Bio: Mark Kelly (7/2011)

... Radio astronomers at Arecibo Observatory observe a wide variety of phenomena in the Milky Way and in other galaxies. ... Some REU projects are carried out on pre-existing data, and others rely on obtaining new data. ... Deriving a new shape model from existing radar images has been a popular student project in past years, and there are data sets that could be used for this. We are collecting thermal infrared emission data for many of the near-Earth asteroids that are also observed with radar. ...

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• I-GALFA View of a Galactic Tangent Region
• water ice on mercury
• Arecibo Radar Discovers Triple Near-Earth Asteroid

ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Parkes radio telescope . ... Visiting Parkes radio telescope . ... The Australia Telescope National Facility Colloquium . ... We discovered hundreds of previously unknown Milky Way HII regions by using the Green Bank Telescope to detect their hydrogen radio recombination line emission. Since the interstellar medium is optically thin at 3 cm wavelength, we can detect HII regions across the entire Galactic disk. ...

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• PM Survey Status
• Every cloud has a translucent region
• casacore: Regions_module

... Sun images . ... Sun flares . ... Active areas . September : 2015 . ... The following regions with sunspots can be now observed on the Sun's surface . Group number . ... Group length (in degrees) . ... Coordinates and other characteristics of active regions are issued for September 09, 2015 00:31 UT The following H-alpha plages without spots can be currently observed on the Sun's surface . ... Coordinates and other characteristics of active regions are issued for September 09, 2015 00:31 UT . ...

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• Sunspots and active regions January 10, 2007
• Sunspots and active regions January 10, 2012
• Sunspots and active regions January 01, 2015

... We report on our ongoing project ``Infrared Study of HII Regions Associated with Small Clouds.' ... These IR data, combined with optical imaging (which will be obtained from the IAC-80 telescope), IRAS survey maps, and existing CO observations of the associated clouds, will allow us to undertake a detailed investigation of the gas-to-dust mass ratio, initial mass function and the star-formation efficiency in these complexes. ... CHECKPSF: check the PSF (Point Spread Function) model, . ...

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• An IRAF-Independent Interface for Spatial-Region Descriptors
• Modelling Spectro-photometric Characteristics of Eclipsing Binaries
• A Program Complex Equipped With a GUI for Investigation of 3D Structure of

... A total of 462 were detected, about half of these for the first time. ... Ojects not Detected ----------------------------------------- l b BRMS mK Notes ----------------------------------------- 6.490 + 0.084 5.1 W28 SNR 6.648 + 0.084 4.2 W28 SNR 8.989 +35.502 3.5 S33 B 11.531 +36.350 3.1 S36 A 13.456 + 0.156 3.5 SNR 16.732 + 0.079 3.5 SNR 19.961 - 0.175 3.5 SNR 21.347 - 0.628 3.8 Extragalactic 25.253 - 0.150 5.7 Extragalactic 25.520 0.215 5.2 28.600 - 0.126 4.0 SNR+HII+? ...

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• The use of IRAS data to define H II regions
• HII regions H109-line catalog
• A 10-GHz Radio Continuum Survey