... 2006 May 1 . Open Cluster NGC 290: A Stellar Jewel Box . ... Explanation: Jewels don't shine this bright -- only stars do. Like gems in a jewel box, though, the stars of open cluster NGC 290 glitter in a beautiful display of brightness and color. ... NGC 290 and other open clusters are good laboratories for studying how stars of different masses evolve , since all the open cluster's stars were born at about the same time. ... About APOD | ...

Еще в разделе: (Показать все результаты (>8719) - www.sai.msu.su/ )

• APOD: 2014 June 8 - Open Cluster NGC 290: A Stellar Jewel Box
• APOD: 2008 August 3 - Open Cluster NGC 290: A Stellar Jewel Box
• APOD: 2013 May 1 - Omega Centauri: The Brightest Globular Cluster

... October 18, 1999 . NGC 3603: An Active Star Cluster . ... Explanation: NGC 3603 is home to a massive star cluster, thick dust pillars, and a star about to explode . The central open cluster contains about 2000 bright stars, each of which is much brighter and more massive than our Sun . ... These stars are less massive than our Sun, demonstrating that great numbers of low-mass stars also form in active starburst regions . ... About APOD > . ...

Еще в разделе: (Показать все результаты (>9025) - www.arcetri.astro.it/ )

• APOD: May 22, 1996 - Star Cluster in the Rosette Nebula
• APOD: December 13, 1997 - The Coma Cluster of Galaxies
• APOD: 2000 January 12 - NGC 6791: An Old, Large Open Cluster

... Open Cluster NGC 290: A Stellar Jewel Box . ... Like gems in a jewel box, though, the stars of open cluster NGC 290 glitter in a beautiful display of brightness and color. ... Open clusters of stars are younger, contain few stars, and contain a much higher fraction of blue stars than do globular clusters of stars. ... NGC 290 and other open clusters are good laboratories for studying how stars of different masses evolve , since all the open cluster's stars were born at about the same time. ...

Еще в разделе: (Показать все результаты (>166581) - www.astronet.ru/ )

• Астронет > Open Cluster NGC 290: A Stellar Jewel Box
• Journal "Peremennye Zvezdy"

Stellar Clusters are very useful laboratories for empirically studying stellar evolution. ... All cluster stars are at the same distance . All cluster stars have the same physical age . ... CM diagram Young Cluster In this case we see the Main Sequence fully represented. The blue dots represent massive stars with short main sequence lifetimes. ... Thus, identifying the most massive star which is still on the main sequence is an effective means of determining the age of a stellar cluster. ...

Еще в разделе: (Показать все результаты (>321) - zebu.uoregon.edu/ )

• Astronomy HyperText Book

... Donate to Support Science Literacy . ... 2016 Annual Awards . The ASP is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach. ... Shop the AstroShop . ... The Astronomical Society of the Pacific (ASP) is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach.. ...

Еще в разделе: (Показать все результаты (>1687) - www.astrosociety.org/ )

• ASP: Beacons in the Gloom
• ASP: Sharing the Universe
• ASP: Star Science in the Autumn Sky

... In order to obtain a quantitative estimate of the accuracy and reliability of our data reduction procedures and results, we have performed a data reduction pipeline based on the following steps: i) define a set of simulated HST-like images with synthetic globular cluster stellar distributions, which provide the ``true'' data for comparison; ii) convolve these images with appropriate assumptions of PSF and noise in order to construct simulated `` observed '' ... It contains 470 stars. b) ...

Еще в разделе: (Показать все результаты (>17134) - www.stsci.edu/ )

• Andy Fruchter's Homepage
• Fusi Pecci et al.: Photometric Measurements of Simulated Restored Images
• Surface Brightness Profiles

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. ...

Еще в разделе: (Показать все результаты (>2803) - www.armaghplanet.com/ )

• Hubble shows us a spectacular star cluster | Astronotes
• Orion, mighty hunter of the winter sky | Astronotes
• M55 globular cluster seen by ESO | Astronotes

... 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) ...

Еще в разделе: (Показать все результаты (>3040) - www.naic.edu/ )

• Why can I only see six of the ``Seven Sisters''?
• Pulsar Highlights - A Dozen new MSPs in Globular Clusters
• What is HISA?

... We describe a tool in the PCIPS environment for finishing the job of globular cluster photometry started by DAOPHOT II: starting with the instrumental magnitudes derived by DAOPHOT II, DASHA can automatically produce final color-magnitude diagrams. ... DASHA can automate the whole process of globular cluster photometry, from instrumental magnitude lists produced by DAOPHOT II, to final color-magnitude diagrams. ... DASHA is oriented towards star lists produced by DAOPHOT II as source data. ...

Еще в разделе: (Показать все результаты (>1995) - www.adass.org/ )

• A Commodity Computing Cluster
• Classification of Objects in the Guide Star Catalog
• AIRY: Astronomical Image Restoration in interferometrY

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope 20GHz Survey . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... In addition to this, their morphology displays very spiral like signatures compared to quiescent red sequence galaxies. ...

Еще в разделе: (Показать все результаты (>17261) - www.atnf.csiro.au/ )

• Stellar Evolution Links
• Compact Stellar Systems in the Fornax Cluster: Super-massive Star Clusters or
• ATNF Colloquium

... 87.1083Owen+ VIII/29 1400-MHz Survey of 1478 Abell Clusters of Galaxies (Owen+ 1982) ================================================================================ A 1400-MHz Survey of 1478 Abell Clusters of Galaxies Owen F.N., White R.A., Hilldrup K.C., Hanisch R.J. =1982AJ.. ... 0,] Major axis error 70- 71 A2 --- n_MajAxi *[ A, B, C,NR, ] Major axis note 73- 74 I2 arcmin MinAxi *? ... Note on dist-C: Ratio of the distance of the source from the cluster center to the corrected Abell cluster...

Еще в разделе: (Показать все результаты (>2135) - www.sao.ru/ )

• A 20 cm VLA survey of Abell clusters of galaxies
• Radio data
• Clusters of Galaxies

Next: J.E. Chambers, Research Astronomer Up: Research Previous: Research Contents . ... Solar Variability and Climate . Other Activities . ... Applied to data of flares on Gliese866 he was able to estimate the area of hydrogen emitting flare regions as 1-13% of the stellar surface. ... As partners in the project, Armagh Observatory has been asked to contribute to the selection process in exchange for priority access to the data which will eventually flow from the satellite. ...

Еще в разделе: (Показать все результаты (>3155) - star.arm.ac.uk/ )

• Armagh Observatory
• William Herschel
• SELB Schools Cluster Programme Show | International Year of Astronomy - Beyond

... This paper ( Burke et al. 2003 ) describes the creation of one such catalogue - the Southern Serendipitous High-redshift Archival ROSAT Cluster (SHARC) survey - which covers an area of 17.7 deg 2 and consists of 32 clusters with redshifts between 0.05 and 0.7 and X-ray luminosities between 7 x 10 42 and 4 x 10 44 erg/s: the high-redshift subsample contains 16 clusters with = 0.3 and X-ray luminosities greater than 2 x 10 43 erg/s (luminosities are quoted for the 0.5 - 2.0 keV energy band). ... 1997 ...

Еще в разделе: (Показать все результаты (>3854) - hea-www.harvard.edu/ )

• The AstroStat Slog Blog Archive Classification and Clustering
• The AstroStat Slog Blog Archive my first AAS. IV. clustering
• The AstroStat Slog globular cluster

... Bad Astronomy . ... Mad Science . ... Site Info . ... Public Talks . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Who is this guy who calls himself "The Bad Astronomer?" ... First, yes, I am a real live astronomer (when people ask me what astronomers do, I tell them "They astronom !" ... These are emitted by powerful objects like black holes, exploding stars, and super-dense neutrons stars. ... Finally, am I really a bad astronomer? ... 2008 Phil Plait. ...

Еще в разделе: (Показать все результаты (>410) - www.badastronomy.com/ )

• Phil Plait's Bad Astronomy: Misconceptions
• Phil Plait's Bad Astronomy: Bitesize Astronomy

GALAXIES cenA .tiff 40 Bright Radio Galaxy M31.tiff Nikon Andromeda Galaxy (note HII regions in spiral arms) ngc6744.tiff 40 NGC 6744 a face-on spiral clouds_20d.tiff H'blad The Magellanic Clouds our nearest neighbours Lmc_7.tiff Nikon The Large Magellanic Clouds Lmc_zoom.tiff Nikon Detail of previous image smc_7.tiff Nikon The Small Magellanic Clouds smc-zoom.tiff Nikon Detail of previous image 30dor_40_BVR.tiff 40 The 30 Dor ... B [OIII] Halpha trifid.tiff 40" The Trifid Nebula. ...

Еще в разделе: (Показать все результаты (>767) - www.mso.anu.edu.au/ )

• Julie Banfield | Astronomer
• Blue Straggler Stars
• IAU Commission #37 (Star Clusters and Associations)

... 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" . ...

Еще в разделе: (Показать все результаты (>3) - www.astronomer.ru/ )

You Can Make Stellar Images Brighter . Articles | ... A few months ago I wrote an article titled "You Can’t Make Them Brighter". So why am I now writing that you can make them brighter. ... The image of a focused star is actually a small disk called the Airy disk, named after the 19 th century scientist Sir George Airy. ... For a given aperture, a smaller Airy disk means that the light is focused to a smaller disk and is therefore brighter. ... www.astronomy.net . About Astronomy Net | ...

Еще в разделе: (Показать все результаты (>671) - www.astronomy.net/ )

• Articles written by astronomers for astronomers of all ages.
• The Astronomy Shop - Books - by Astronomy Net

... My primary research interests are the formation and evolution of nuclear star clusters. ... Nuclear star clusters are common objects in nearby galaxies. ... Feldmeier-Krause, A. ; Neumayer, N.; SchУЖdel, R.; Seth, A.; Hilker, M.; de Zeeuw, P. T.; Kuntschner, H.; Walcher, C. J.; LУМtzgendorf, N.; Kissler-Patig, M. Astronomy Astrophysics, accepted, 2015 . ... SchУЖdel, R.; Feldmeier, A. ; Neumayer, N.; Meyer, L.; Yelda, S. Classical and Quantum Gravity, Volume 31, Issue 24, 12/2014 . ... 2014 . ...

Еще в разделе: (Показать все результаты (>50659) - www.eso.org/ )

• ESO - star07
• Frantic activity revealed in dusty stellar factories | ESO

... Club By-laws . ... Other Club Activities . ... Public Nights . ... Dr. James Green, NASA, Director Planetary Science will be our esteemed speaker on Tuesday, April 12, 2016 at 7:30 PM in Peyton Hall on the Princeton University campus. ... Our astronomers setup telescopes for public use at Communiversity in Princeton, Super Science Saturday at the NJ State Museum in Trenton and at various public events around Mercer County. ... Amateur Astronomers Association of Princeton, Inc., ...

Еще в разделе: (Показать все результаты (>117) - www.princetonastronomy.org/ )

... Observatory . ... The Laboratory of Astrometry . Dept. for Physics of Stars&Galaxies . ... Astronomical Calendar . ... UkrVO . ... The purpose of research: Creating a stellar catalog to study the structure and kinematics of star systems, including open star clusters and stars with large proper motions; the enhancement ICRF / Hipparcos system to stars dawn to 17 m (V); Search of binary systems of brown dwarfs and determination of their parameters; astrometry of minor bodies of the Solar System. ...

Еще в разделе: (Показать все результаты (>606) - www.mao.kiev.ua/ )

• Achievements - Page 4