... Welcome to Planet Earth . ... Welcome to Planet Earth, the third planet from a star named the Sun. ... Brilliant Venus, a slender crescent Moon, and lights along the Ponte 25 de Abril glow against the western twilight in this lovely moonset scene from Lisbon, Portugal, recorded on March 20. ... Of course, on that day the Moon rose with the Sun, creating a widely enjoyed partial solar eclipse. ... Eiffel Moon . ... The March 3rd total lunar eclipse was widely viewed by denizens of planet Earth. ...

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... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

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Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System Characteristics Formation Exosolar Planets Class 3 Stars The Sun Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic Evolution ... So far, one planet has been studied by this method. ...

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• http://www.aaa.org/s932/images/09fallclass3.pdf
• http://www.aaa.org/s932/images/09fallclass1.pdf
• http://www.aaa.org/s932/images/09fallclass5.pdf

The Astronomy Shop . ... AstroGuide | ... Shop | ... Posters | The Andromeda Galaxy - High Resolution Poster Image (Paper Edition) . ... This poster is also availiable in a laminated edition - see The Andromeda Galaxy (laminated). ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

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

... Editor's choices for the most educational Astronomy Pictures of the Day about spiral galaxies: . APOD: 2003 March 10 - M101: The Pinwheel Galaxy . Explanation: Why do many galaxies appear as spirals ? ... One result is that M101 , also called the Pinwheel Galaxy , has several extremely bright star-forming regions (called HII regions ) spread across its spiral arms. ... APOD: 2003 April 13 - NGC 1365: A Nearby Barred Spiral Galaxy . ... NGC 1365 is a member of the Fornax Cluster of Galaxies . ...

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• APOD Index - Galaxies: Elliptical Galaxies
• APOD: December 11, 1998 - High Redshift Quasars
• APOD: 2009 November 9 - NGC 2623: Galaxy Merger from Hubble

... Tonight's Sky . ... Observing . ... Sky this Month . ... Astronomy for Kids . ... Can you explain Mercury's retrograde motion? Do other planets appear to do this also? ... When astronomers talk about retrograde motion, generally they refer to the apparent motion outer planets make as Earth passes them while orbiting the Sun. ... 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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• Sky-event alert: Venus, brightest light in the night sky | Astronomy.com
• Venus appears highest in the sky for 2012 | Astronomy.com
• Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets,

... HUBBLE UNCOVERS DUST DISK AROUND A MASSIVE BLACK HOLE . Resembling a gigantic hubcap in space, a 3,700 light-year-diameter dust disk encircles a 300 million solar-mass black hole in the center of the elliptical galaxy NGC 7052. ... Because the jets in NGC 7052 are not perpendicular to the disk, it may indicate that the black hole and the dust disk in NGC 7052 do not have a common origin. ... NGC 7052 is located in the constellation of Vulpecula, 191 million light-years from Earth. ...

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• HST this week: 363
• ST ScI Preprint #1367
• HST this week: 296

Astronotes Armagh Planetarium's Stellar Blog! ... Colin Johnston . ... Our Galaxy . ... To locate it, look along the imaginary line between the two end stars on the leading edge of the PloughтАЩs blade (Merak and Dubhe) and Polaris (the North Star), the galaxy M82 (also known as the Cigar Galaxy) along with its companion M81, lies just off this line about a third of the way between the Plough and Polaris. €а€аAs usual, the supernova is far brighter than its home galaxy, appearing as an extra star. ...

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• Viewing the Partial Solar Eclipse of 20 March 2014 | Astronotes
• Sun | Astronotes
• Our Galaxy | Astronotes

... Conjunction Over Armagh . ... Comet and Pleiades . ... Pleiades . ... Antares Region . Helix and Cat's Eye Nebulae . Orion Nebula . Lagoon and Eagle Nebulae . Crab Nebula . ... Our Galaxy Core . Andromeda Galaxy . Wide-field and Zoomed-in Galaxies . Interacting Typhoons and Galaxies . Spiral Galaxy M106 . Sombrero Galaxy . Whirlpool Galaxy . Colliding Galaxies . ... й Miruna Popescu, Armagh Observatory ...

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• Spread of Life through the Galaxy
• Spread of Life Through the Galaxy
• Armagh Observatory

... We present here the preliminary results of a multi­wavelength investigation into high H i mass­to­light ratio dwarf galaxies identified in the HIPASS Bright Galaxy Catalog. ... How could such galaxies, generally low luminosity dwarf galaxies, maintain such a high relative proportion of gas, where as others have processed most of their gas into stars? ... Similarly two of our sample galaxies have dropped into the low M HI =LB regime, but ESO215-- G?009 is confirmed as a very high M HI =LB galaxy. ...

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• http://www.atnf.csiro.au/people/bkoribal/publications/S220_warren.ps
• ATNF Colloquium
• A new twist to polar rings

The Sun's corona . ... For instance, short "plumes" rising from the polar regions of the Sun look very much like field lines coming out of the end of a bar magnet, and they therefore suggest that the Sun, in addition to the intense fields of sunspots, also has a global magnetic field like the Earth's. Arches above the . Sun's surface . ... It is brightest near sunspots, whose arched field lines apparently hamper the outflow of solar wind which carries away energy and helps cool the corona. ...

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• The Solar System
• The Sun

An image of the grand design of spiral galaxy M100 obtained with NASA's Hubble Space Telescope resolves individual stars within the majestic spiral arms. ... Hubble has the ability to resolve individual stars in other galaxies and measure accurately the light from very faint stars. This makes space telescope invaluable for identifying a rare class of pulsating stars, called Cepheid Variable stars embedded within M100's spiral arms. ... 617) 495-7062 . Fax: (617) 495-7356 . ...

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• High Energy Astrophysics
• Introduction
• The AstroStat Slog light curve

... Тип спального мешка: одеяло, . ... Спальные мешки . ... Юный герой старше 5 лет будет счастлив получить в подарок робота-машину Mitsubishi Lancer 1:18 Galaxy Defender . ... Тип: Перчатки . ... Тип: полотенце . ... Тип поверхности: матовый . ... Южная Осетия, 2013 год Диаметр монеты: 31 мм Тип гурта: Рубчатый Качество чеканки: Proof Тираж: 1200 экз. ... Тип лампочки (основной): Галогеновая . ... Тип цоколя: GU10 . ... Раздел на сайте: Типы/Споты/С 2 плафонами . ...

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• Lenovo c20-30 19.5", Белый, 4Гб, 500Гб, DOS, Intel Celeron - Lenovo - Lenovo
• Боди - Arefeva - Arefeva Подсветка для картин Arte Lamp Picture Lights II
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... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members . ... Science Users Information . ... Data Handling and Products . ... Science Data Products Forum . ... ESO Data . ... ESO Data Access Policy . ... ESO Science Newsletter . ... ESO astronomers often are working on scientific programmes and data sets that are suited for PhD theses. This page gives an overview over what is currently offered by Faculty astronomers. ... Thesis topic . ...

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• ESO - Thesis Topic: Testing galaxy formation in high density environments - the
• CRIRES - VLT High-Resolution IR Echelle Spectrometer
• ESO - Multiwavelength Views of the ISM in High-Redshift Galaxies

... On the morning of Thursday, 26 February, amid the Gal pagos Islands, the Sun will fade from view. Not the culmination of ancient prophecy, but none less mystical, Earth's small Moon will be executing a slow slide past the enormous Sun. ... And anyone living in southern North America, Central America, northern South America, or on islands and cruise ships in the Caribbean Sea will, weather permitting, have the opportunity to experience the wonder of a solar eclipse. ...

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• ASP: Past Pricilla and Bart Bok Award Winners
• ASP: The Universe At Your Fingertips Activities TOC
• ASP: Astronomical Society of the Pacific Presents Pricilla and Bart Bok Awards

... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...

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• SAO RAS home page
• Galaxy sector, archive 2004
• Northern Lights and GLORIA

... General information . ... Staff . Research staff . ... Information . ... Historical highlights . Historical research . ... This process is thought to occur in circumstellar disks of gas and dust around young stars on rather short timescales : infrared surveys show that the number of low mass stars with disks drops dramatically for stars older than 10 Myr, suggesting that in order to form large solids before the disk disperses, the growth process has to take place within a few million years. ...

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• Hubble Uncovers Dust Disk Around a Massive Black Hole (STScI-PRC98-22) A
• INAF - Arcetri Astrophysical Observatory
• APOD: October 16, 1995 - Starburst Galaxy M94

The Doppler shift is the effect of sound increasing or decreasing in pitch as an object moves towards or away from you. ... Light works the same way, except light is shifted to redder colours when an object is moving away, and to blue colours when an object is travelling towards us. ... Almost every object he observed had its light stretched to redder colours, indicating essentially everything in the Universe was moving away from us. ... So the Hubble constant tells us how old the Universe is. ...

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• ASTR1002 Assignments 4-6: Planet Ziggy
• Dark Matter in Spiral Galaxies
• Julie Banfield | Astronomer

... Solar Wind . ... During a total eclipse of the Sun, when for a few minutes the Moon completely covers the Sun's face, a glow appears around the darkened Sun--the solar corona, the Sun's outermost atmosphere. ... Such high levels of ionization require the atoms to be buffeted around by extremely high temperatures, around 1,000,000 C (1,800,000 F). ... It is brightest near sunspots, whose arched field lines apparently hamper the outflow of solar wind which carries away energy and helps cool the corona...

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• The Celestial Sphere--lesson plan #1a
• Our View of the Sun--Lesson Plan #37
• (S-7a) The Black Hole at the Center of our Galaxy