... NGC 281 (Sharpless 184) is a bustling cradle of star formation about 10,000 light years away. ... The central stars are being formed from the surrounding gas, which emits a large amount of hydrogen alpha (Ha) light after being excited by stellar radiation. ... The dark areas overlaying the brighter ones in the middle of the image are dense clouds of gas known as Bok Globules. ... 4) Image registration . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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... Research areas . ... Events III All-Russian Research and Application Conference 'Actual Issues of Research in Avionics: Theory, Service, Development' - 'AVIATOR' . ... e-mail: aviator.vrn@mail.ru . ... State and development trends of electrical equipment and electro-optical systems of aircraft. ... Current state and development trends of information and management complex for aircraft. ...

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• The Second All-Russian Research and Practical Conference 'Actual problems in

... We have assumed a constant in time star formation rate and the total number of stars in the Galaxy, , to be such that the total mass of the galaxy is ; assuming the Salpeter mass function   , we get . ... This number agrees with a standard estimation of the galactic star formation rate of order of per year. In each run of calculations, we trace the evolution of binaries with initial parameters randomly distributed according to the chosen initial laws. ...

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• Introduction
• Gravitational Waves from Coalescing Compact Binary Stars
• Tsiolkovskii's Paradox

... part 1 | ... Regular orbits of planets of the Solar system during their formation, . ... Radius of the orbit in perigelion . Regular orbit of a planet in time of its formation from . Divergence with actual radius . ... Name . ... orbit . ... Radius . ... Mercury . ... 1,3487 . ... 1,8191 . ... X-planet)* . ... Orbits of prospective planets destroyed in present . Orbits, on which planets of Mercury, Moon and (DePho) * presumably were before. | ...

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... Brown dwarfs are bodies intermediate in mass between stars and planets. ... Recent studies have shown that young brown dwarfs, like young stars, may be surrounded by accretion disks. In some cases these disks appear to be highly evolved, suggesting they are in the early phases of planetary formation. As accretion is often accompanied by outflows in newborn stars, we have been searching for jets from young brown dwarfs. ...

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• Planetary Systems Research at Armagh
• Armagh Observatory
• Terry Mosely's Bulletins

... Stars . ... Straight away the three stars in his belt will grab your attention, followed by the glittering white star Rigel in his left foot and the bright orangish star Betelgeuse in his right shoulder (assuming Orion is standing facing us and not with his back to us). ... Orion Belt?s with the stars Alnitak, Alnilam and Mintaka. ... In short, Orion was a big, loud giant of a man and indeed a mighty hunter, he also inherited some aquatic superpowers from his father who was the sea god Neptune. ...

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• NGC4666: Secrets of a Starburst Galaxy | Astronotes
• Kepler-11: a strange and crowded planetary system | Astronotes
• Kepler-10c: the First Mega-Earth | Astronotes

... Tonight's Sky . ... Observing . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... How do light pollution filters work? Do they actually help? ... Light pollution reduction (LPR) filters work because many outdoor lighting sources do not shine evenly across the visible spectrum. ... 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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• Oxygen in Earthт??s core gives new view of planetary formation | Astronomy.com
• Are super-Earths actually mini-Neptunes? | Astronomy.com
• A planetary system from the early universe | Astronomy.com

... Poitiers, 23 January 2007 Science Vision for European Astronomy in the Next 20 Years 2 Is the initial mass function universal? ... High Poitiers, 23 January 2007 Science Vision for European Astronomy in the Next 20 Years 4 Do we understand stellar structure and evolution? ... Interferometry in near infrared and radio: measuring radii and resolving stellar surface Science Vision for European Astronomy in the Next 20 Years Poitiers, 23 January 2007 5 What is the life-cycle of the ISM and Stars? ...

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• http://www.eso.org/~hboffin/Astronet/Presentations/Panel_C_Presentation.pdf
• Spiral shocks
• Formation Process of the Planetary System around HD 69830 | ESO

... Many massive planets contrary to Jupiter have large eccentricities of orbits. ... Another problem is to study the conditions and boundaries of stable, regular motions of small mass planet in systems having `Jupiter' with large orbital eccentricity as well as properties of regular, stable, and irregular, chaotic motions. ... The regular eccentricity evolution described above demonstrates that stable quasi--circular orbits of small planet are unusual. ...

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• Keywords_312
• Keywords_396

... The Drake Equation: Adding a METI Factor . ... METI (Messaging to Extra-Terrestrial Intelligence) is an activity, which I believe to be an inherent attribute of advanced civilizations. In order to account for the true prevalence of communicative civilizations (that is, those that engage in METI), I suggest we introduce a METI factor f m into the classical Drake Equation . ... f p = The fraction of those stars with planetary systems . ... Then the METI factor f m should be quite small, about 0.01. ...

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• SETI League Guest Editorial -- Past - Present - Future
• Magnetic field influence on martesite phase transition in Ni2+УMn1-УGa
• Project 6 - RFBR - Multilayer epitaxial heterostructures of high-temperature

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 S un Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic ... Low mass stars live and die differently than high mass stars. ...

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... The PROS system provides the capability to keep track of the uncertainties in image files through error arrays. ... There is a task, errcreate , that will estimate the errors in an image and produce an error array. ... Some tasks that transform images, such as imsmooth, imcompress , and imreplicate have the option to produce a resultant error array, derived from the original image's error array. Note, however, that the imcalc task does not produce an error array. ...

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• The AstroStat Slog upper limit
• The AstroStat Slog star formation