... 2013 December 5 . Planetary Nebula Abell 7 . ... Explanation: Very faint planetary nebula Abell 7 is some 1,800 light-years distant, just south of Orion in planet Earth's skies in the constellation Lepus, The Hare . ... A planetary nebula represents a very brief final phase in stellar evolution that our own Sun will experience 5 billion years hence , as the nebula's central, once sun-like star shrugs off its outer layers. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

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• APOD: 2007 December 24 - Emission Nebula IC 1396
• APOD: 2006 December 27 - IC 5067: Emission Nebula Close up
• APOD: 2007 December 28 - A Beautiful Boomerang Nebula

... Spherical Planetary Nebula Abell 39 . ... 28.07.2005 . ... Credit Copyright: Jim Misti ( Misti Mountain Observatory ) Explanation: Ghostly in appearance, Abell 39 is a remarkably simple, spherical nebula about five light-years across. ... Still visible, the nebula's central star is evolving into a hot white dwarf. ... Publications with keywords: planetary nebula - stellar evolution - white dwarf - Abell 39 . Publications with words: planetary nebula - stellar evolution - white dwarf - Abell 39 . ...

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• Planetary Nebula NGC 2438
• The Necklace Nebula
• Dust and the Helix Nebula

... STScI-PRC97-38b HUBBLE'S PLANETARY NEBULA GALLERY [Top left] - IC 3568 lies in the constellation Camelopardalis at a distance of about 9,000 light-years, and has a diameter of about 0.4 light-years (or about 800 times the diameter of our solar system). ... Credits: Howard Bond (Space Telescope Science Institute), Robin Ciardullo (Pennsylvania State University) and NASA [Top center] - NGC 6826's eye-like appearance is marred by two sets of blood-red "fliers" that lie horizontally across the image. ...

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• Arcetri Star-Formation Group Publications
• APOD: 2000 December 29 - The Dark Horsehead Nebula

. No abstract -- see paper (it's only two pages long!). | back | . Matthew Whiting . Address: . Australia Telescope National Facility . PO Box 76, Epping, . NSW 1710, . Australia . Email: . Matthew.Whiting <at> csiro.au . ph: +61-2-9372-4683 . fax: +61-2-9372-4444 . Location: . You can now find me in room 99 at Epping. Home Duchamp Duchamp downloads Links Publications Astro Acronyms Japanese Poetry

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• ATNF Colloquium
• A survey for H I in the distant Universe: the detection of associated 21-cm
• Near-infrared millihertz variability of the wisps and jet in the crab pulsar

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... Publications of the ASP (PASP) . ... Astronomy Beat . ... Mercury Magazine Contents . ... November/December 1999 . ... Unveiling Black Holes in a Supernova Cauldron , Shmuel Balberg, Monica Colpi, Stuart L. Shapiro, and Luca Zampieri . In the next year, observations of a distant, newly discovered supernova may provide us an opportunity to identify a black hole in the debris of such a stellar explosion. ...

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• ASP: Contents, November/December 2006
• ASP: Contents, November/December 1998
• ASP: Contents, November/December 2005

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Space Flight . ... A glorious cosmic butterffly imaged by the HST (Image credit: NASA/ESA) . This dramatic image looks like some vast cosmic eruption, and that impression is entirely correct. ... Designated NGC 6302 and often called the Butterfly Nebula, this is an example of a planetary nebula. ... Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...

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• A Summer Night?s Stargazing | Astronotes
• A Spectacular View of the Lagoon Nebula | Astronotes
• Our Galaxy | Astronotes - Part 4

... The sharp vision of Hubble's Advanced Camera for Surveys uncovered the speedy white dwarfs in the ancient globular star cluster NGC 6397, a dense swarm of hundreds of thousands of stars. ... The distribution of young white dwarfs is the exact opposite of what we expected," said astronomer Harvey Richer of the University of British Columbia in Vancouver. ... The idea that young white dwarfs are born with a kick was suggested 30 years ago to explain why there were so few of them in open star clusters....

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• John H. Debes
• GOODS: The Great Observatories Origins Deep Survey
• All kinds of death - 13

... GSAOI Home . ... Science . ... Deep imaging at J , H , and K is required to identify all stellar objects, brown dwarfs, and planetary mass objects in the central region of the Orion Nebula Cluster down to masses comparable to that of Jupiter. This is required to establish the initial mass function, i.e., the number of stars of each mass that have formed, in this region of intense massive star formation. ... The fields of the GSAOI detectors are shown as four green squares in each frame. ...

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• David Nicholls: CV and publications
• Home Page of Raquel Salmeron
• GSAOI Magellanic Cloud Planetary Nebulae Science Page

... Optical Counterparts for 70,000 Radio Sources: APM Identifications for the FIRST Radio Survey . ... We describe a program to identify optical counterparts to radio sources from the VLA FIRST survey using the Cambridge APM scans of the POSS-I plates. We use radio observations covering 4150 square degrees of the north Galactic cap to a 20 cm flux density threshold of 1.0 mJy; the 382,892 sources detected all have positional uncertainties of Format for the Table of FIRST-APM Optical Counterparts . ...

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• "Structure" publications in 2007 year
• "Structure" publications in 2005 year
• "Structure" publications in 1999 year

... 2014: . Suppression of cooling by strong magnetic fields in white dwarf stars . ... 69, 439, 2014. Evidence of supercritical accretion in SS433 . ... We discovered a flat portion (white noise) in the power spectrum of SS433 due to an abrupt increase of the disk thickness in the supercritical region. ... Both the hard X-ray radiation and the visual light are seen reflected from the walls of the funnel that forms in the wind of the supercritical disk of SS433. ... Archive . ...

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• Galaxy sector, archive 2009
• Events archive
• Galaxy sector, archive 2004

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

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• The Acceleration of the Aurora
• Dr. Victoria I. Prokhorenko
• Plasma sheet and PSBL [Oulu]

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

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• The Acceleration of the Aurora
• Space Research Institute (IKI) Seminar
• High Energy Particles

... An international team of astronomers has discovered a new magnificent example of a planetary nebula showing fast moving jets. ... Finally, the envelope is ejected as a planetary nebula and the two stars are now orbiting around each other in a frenetic cosmic waltz. ... The paper, just accepted by Monthly Notices of the Royal Astronomical Society, is available on astro-ph (ETHOS 1: A high latitude planetary nebula with jets forged by a post common envelope binary central star, by B. Miszalski et al.)...

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• Jeremy R. Walsh's Home Page
• ESO - Restricted Services from 21 December to 01 January
• ESO - The European ELT

Hot subdwarfs are hots stars with masses somewhat less than that of the Sun. ... They are known as sdB stars because their spectra are dominated by hydrogen lines. ... Normally, a red giant will switch on core helium burning without losingthe layers of hydrogen around the helium core. sdOB stars are related to sdB stars, possibly being the sdB stars which have completed core helium burning and are evolving to become white dwarfs. ... Such stars are known as PG1159 stars and DO white dwarfs. ...

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• M.D. Smith, Research Astronomer
• Sakurai?s Object (V4334 Sagittarii)
• Simon Jeffery's Papers 1995 - 1999

... Bad Astronomy . Misconceptions . ... Bad Astronomy : "We're light years more advanced than our competition!" ... Even the closest astronomical object, the Moon, is 400,000 kilometers away! ... A beam of light will travel 9,500,000,000,000 kilometers in one year. This distance is defined as a light year ; the distance light travels in a year. ... This is another example of Bad Astronomy; like a light year, a parsec is a unit of distance, not time (to be specific, it equals 3.26 light years) . ...

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... In the central equatorial Pacific, the large area of warmer than normal sea surface temperatures (large area outlined in red with a white center) associated with growing El Nino conditions has recently migrated eastward toward the coast of South America. http://physicaplus.org.il/zope/home/en/1105389911/1113511992_en На этой странице есть презентации с конференции, где активно обсуждалась . ... Картинка со страницы со статьей Шавива. http://physicaplus.org.il/zope/home/en/1105389911/1113511992_en . ...

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• Astronomical Periodical Publications
• My publications
• My Publications

... Home Education Workshops at Adorama Astro Imaging Workshop: Planetary Astro Imaging with a DSLR ? December 7, 2014 . ... Astro Answers . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Presented by€а Adorama€а For the Amateur Astronomers Association of New York . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

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• This MonthтАЩs Sky тАУ February 2016 ? Amateur Astronomers Association of New
• Deep Sky Images by Joe DiNapoli ? Amateur Astronomers Association of New York
• Lecture Series 2015-2016 ? Amateur Astronomers Association of New York

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil La Spiral Planetary Nebula retrouve ses vraies couleurs . ... 07/04/2016 - Plong†йe au centre de la Voie lact†йe . 01/04/2016 - Impact r†йcent sur la face cach†йe de la Lune . ... 22/03/2016 - LтАЩoptique du JWST est achev†йe . ...

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• Impact d'ast†йro†пde il y a 13 000 ans: nouveaux indices | Ciel et Espace
• ExoplanГЕtes : La vГїritГї sur les jumelles de la Terre | Ciel et Espace
• GN-z11 : la galaxie la plus lointaine de lв?TUnivers | Ciel et Espace

. A bipolar nebula in M17 is home to the largest and most massive circumstellar disk yet known. White contours delineate the densest part of the disk. Visible stars appear slightly elongated due to the adaptive optics technique used. They are embedded within the M17 molecular cloud but are probably unrelated to the disk. The inset (bottom right) shows the central object, which measures 450 x 240 AU. M17 is 7,000 light-years away. ESO

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• Sirius, our brightest star, is orbited by a white dwarf т?? a dead star's core.
• The galaxy's youngest globular cluster? | Astronomy.com
• White dwarfs get a kick | Astronomy.com

Pulsars (from PULSAting stARs) were discovered, albeit accidentally, by Jocelyn Bell at Cambridge in 1967. ... In addition, some pulsars are known to be members of binary systems in which the companion is another neutron star, a white dwarf and even a main sequence star. ... PSR B1913+16: . ... Although subsequent pulsar surveys with better sensitivity to short period objects have found a large number of similar objects, for 24 years PSR B1937+21 stayed as the most rapidly rotating neutron star known. ...

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• The Pleiades
• The Arecibo Zone of Avoidance Survey (ALFAZOA)
• National Astronomy and Ionosphere Center (Arecibo Observatory)