... September 25, 1996 . Bright Stars and Dark Clouds . Credit: Anglo-Australian Telescope photograph by David Malin . ... Well don't feel bad - this even happened to the bright young stars of the open cluster NGC 6520. On the left are the cluster's bright blue stars. They formed only millions of years ago - much more recently than our ancient Sun which formed billions of years ago. On the right is an absorption nebula from which the stars might have formed. ... About APOD | ...

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• APOD: September 21, 1999 - The Quintuplet Star Cluster
• APOD: 2001 September 9 - NGC 3293: A Bright Young Open Cluster
• APOD: 2003 April 7 - NGC 281: Cluster, Clouds, and Globules

... Credit: David Malin ( AAO ), IAC , RGO , Isaac Newton Telescope Explanation: NGC 281 is a busy workshop of star formation. Prominent features include a small open cluster of stars, a diffuse red-glowing emission nebula , large lanes of obscuring gas and dust , and dense knots of dust and gas in which stars may still be forming. ... Publications with keywords: bok globule - emission nebula - open cluster . Publications with words: bok globule - emission nebula - open cluster . ...

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• Астронет > NGC 281: Cluster, Clouds, and Globules
• NGC 6823: Cloud Sculpting Star Cluster
• Bright Stars and Dark Clouds

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. September 22, 1998 . M61: Virgo Spiral Galaxy . ... Explanation: M61 is a barred spiral galaxy located in the nearby Virgo Cluster of Galaxies . Visible in M61 are a host of features common to spiral galaxies : bright spiral arms , a central bar , dust lanes , and bright knots of stars. ... About APOD > . ...

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• APOD: September 5, 1998 - The Pulsar Powered Crab
• APOD: December 18, 1999 - Irregular Galaxy Sextans A
• APOD: April 2, 1999 - Stars of NGC 206

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Starbursts are short-lived events, stars are forming so quickly that the reservoirs of interstellar gas from which stars are coalescing would be used up on a timescale much shorter than the age of the galaxy . ... Strong stellar winds from giant new stars in the starburst region combine with the blasts of supernovae to push a mighty flood of extremely hot gas, a ?superwind? from the galaxy thousands of light years into intergalactic space. ...

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• M55 globular cluster seen by ESO | Astronotes
• stars | Astronotes - Part 6
• Stellar Nursery NGC 6357: Image of the Month | Astronotes

Photon Scattering: Basic Principle of Photon Scattering . Audio Narration is available . No Scattering: Photon Source and Detector . ... For optical photons, scattering goes as wavelength to the -4 power. In the case of blue photons compared to red photons, this means that blue photons are about 10 times more likely to get scattered than red photons. ... Watch the blue photons scatter away from the detector . ... Interstellar dust make stars appear redder than they really are . ...

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• Astro-2 and the UIT Experiment
• Low Surface Brightness Galaxy Gallery
• Astronomy HyperText Book: Stellar Clusters

... All previous such superstars have been found along with many companion stars in the centres of crowded star clusters. The star is known as VFTS 682 from the VLT-FLAMES Tarantula Survey catalogue of the European Southern Observatory's Very Large Telescope (VLT) located at Paranal in Chile by means of the attached FLAMES instrument. ... Although VFTS 682 seems to be alone now it is not very far away from a very rich star cluster known as RMC 136 that contains several similar superstars. ...

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• M.D. Smith, Research Astronomer
• Objects in the Sky
• Irish Astronomers Meet in Armagh

... The Pleiades star cluster, also known as the Seven Sisters and Messier 45, is a conspicuous object in the night sky with a prominent place in ancient mythology . ... The stars in the Pleiades are thought to have formed together around 100 million years ago, making them 1/50th the age of our sun, and they lie some 130 parsecs (425 light years ) away. ... Data for these stars are listed in a table below. ... Yes . ... WEBDA Pleiades cluster data . ... M45: The Pleiades Star Cluster (2007 November 18) ...

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• What is HISA?
• New Results Confirm Dark Galaxy Existence

... Abstract . ... Harald Ebeling, University of Hawaii . ... Binaries in the Kuiper Belt: Probes of Solar System Formation and Evolution . ... UV Imaging to Determine the Location of Residual Star Formation in Galaxies Recently Arrived on the Red Sequence . ... Observations show that almost all well-defined cluster systems at low and moderate redshift have a significant population of elliptical galaxies which have red colours, indicative of old stellar populations and minimal current star formation. ...

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• Black Holes in Globular Clusters
• Gregory F Snyder
• Infrared Imaging of the Large Magellanic Cloud Star-forming Region Henize 206

... Most stars form in clusters, so the simple picture of star formation needs to incorporate the impact that young stars have on their environments, and each other. One region we study is NGC 1333, shown to the left as seen by the Spitzer Space Telescope. This is a тАЬproto-typicalтАЭ star-forming region located тАЬonlyтАЭ 1000 light years away in the direction of the constellation Perseus. ... Copyright 2015 Adele Plunkett. ...

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• Infrared/visible crossfade of the Monoceros R2 star-forming region | ESO
• Infrared/visible-light crossfade view of the star cluster NGC 6520 and the dark
• The bright star cluster NGC 6520 and the strangely shaped dark cloud Barnard 86

... Your main research interests concern neutral hydrogen. ... That means that there must be enormous quantities of gas lying around, waiting for the chance to collapse under its own weight into lumps and form stars and galaxies. If we could actually observe this gas, as it moves around and assembles itself into lumps, we would be directly observing the process of galaxy formation. ... Optical astronomers seem to think that they can observe galaxy formation by taking optical images. ... In galaxies. ...

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• Blue Straggler Stars
• THE AUSTRALIAN NATIONAL UNIVERSITY
• GSAOI Orion Nebula Cluster Science Page

... Bad Astronomy . ... Bitesize Astronomy . ... The next step up are true clusters, called open clusters . Open clusters (sometimes misleadingly called "galactic clusters") are groups of stars ranging in size from a few dozen stars up to tens of thousands. ... The youngest is about 1 or 2 million years old, while the oldest is about 6 or 7 billion years, making it just older than our own solar system. ... So by looking at the stars in the cluster we can tell pretty well how old they are. ...

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• Phil Plait's Bad Astronomy: Info
• Phil Plait's Bad Astronomy: Bad TV

... Its perihelion would occur on April 1, 1997, at which point the comet would be only 0.92 astronomical units from the Sun, just within the orbit of Earth. ... Taken in April 1993, the photo showed the comet over 13 astronomical units from the Sun, well beyond the orbit of Saturn. ... Hale, as in Comet Hale-Bopp, has written a book, Everybody's Comet (available through the ASP Catalog) and coordinated an Internet project, "Hale-Bopp: Live in the American Classroom." ... Anatomy of a comet. ...

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• ASP: Big Clusters, Tiny Galaxies
• ASP: A Good Definition of the Word "Planet": Mission Impossible?
• ASP: Beacons in the Gloom

... 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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• Hubble sees NGC 7090 т?? an active star-forming galaxy | Astronomy.com
• Chandra X-ray Observatory delivers new insight into formation of star clusters
• APEX turns its eye to dark clouds in Taurus | Astronomy.com

... With the stars gamma Can and delta Can , it forms another asterisms called " the Asses and the Manger ". ... Formed by the stars delta Ori, epsilon Ori and zeta Ori ; in Latin America it is called the " Three Marys ". ... Built by the four stars alpha UMa, beta UMa, gamma UMa and delta UMa . ... Formed by the four stars alpha Del , beta Del , gamma Del and delta Del . ... Also on Orion; the belt stars ( delta Ori , epsilon Ori and zeta Ori ), the sword and eta Ori build up this asterism. ...

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• The M111 - "OnLine"

National Aeronautics and Space Administration . ... Carl E. Walz (Colonel, USAF, Ret.) NASA ASTRONAUT (FORMER) . ... NASA EXPERIENCE: Selected by NASA in January 1990, Walz is a veteran of four space flights, and has logged a total of 231 days in space. He was a mission specialist on STS-51 (1993), was the Orbiter flight engineer (MS-2) on STS-65 (1994), was a mission specialist on STS-79 (1996), and served 196 days in space as flight engineer (FE-1) on ISS Expedition-Four (2001-2002). ...

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• Astronaut Bio: John E. Blaha (05/2008)
• Astronaut Bio: Mark C. Lee 10/2006
• Astronaut Bio: Christopher J. Ferguson (12/2011)

... Archives . ... my first AAS. ... I was questioned by two attendees, acquainted before the AAS, if I can suggest them clustering methods relevant to their projects. ... classification vs. clustering or supervised learning vs. unsupervised learning : the former terms from the pairs indicate the fact that the scientist already knows types of objects in his hands. ... Tags: Classification , clustering , cosmology , spatial statistics , supervised learning , test , unsupervised learning . ...

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• The AstroStat Slog Blog Archive Classification and Clustering
• The AstroStat Slog Blog Archive A confession from a former ?keV? junkie (2.
• Reading Quiz

... PmWiki .Forms$:Audience} . ... An optional name="FormName" argument can be used to name the form. ... input text name value size= n :) (:input hidden name value :) (:input password name value :) (:input radio name value :) (:input checkbox name value :) (:input select name value label :) (:input default default-name default-value :) (:input submit name value :) (:input textarea name [=value=] rows= n cols= n :) (:input reset name label :) (:input file name label :) (:input image name "src" alt :) . ...

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• ATNF Colloquium
• Release of 18 September 2003.
• ATNF Daily Astronomy Picture

... Our Sun is part of a huge wheel-shaped collection of stars. ... Astronomers have long suspected it was a very massive black hole, and that every galaxy had such a central mass, created early in the history of the universe. ... However, unless that object happens to be headed directly at the black hole (a relatively small target) it will just swing around and fly away again, like a comet making a pass at the Sun. The velocity acquired in falling towards the black hole also helps it escape. ...

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• Space Research Institute (IKI) Seminar
• Carrington's Flare

Structure Formation : Bright side of the Universe Anatoly Klypin New Mexico State University Also: Stefan Gottloeber (Astrophysikalisches Institut Potsdam) Gustavo Yepes (UAM, Madrid) Cosmological ... -body+hydro simulations Codes: SPH + TREE AMR + shock capturing hydro Physical processes: Compton cooling/heating on CMB Radiative gas cooling Star formation with simple approximations Metal enrichment Energy/momentum feedback from young stars and SN Galaxies too concentrated. ...

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• GRB follow-up team
• Results scientific researchs 21

... Главная . ... Новости . ... Проекты . Любителям астрономии . Проект ISON . ... Подробнее . ... Категория: Новости проекта ISON . ... Метки: Космический мусор ,љ Астероиды ,љ Гамма-всплески ,љ Любителям астрономии ,љ Кометы љ . ... Метки: Космический мусор ,љ Астероиды ,љ Любителям астрономии љ . ... Новости обсерваторий проекта] - Обсерватория Кубанского государственного университета от Иванов А - 09.04.2016 11:08:49 . ... 1999-2013 Copyright "Астрономия и Телескопостроение" . ...

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