... 2000 August 22 . NGC 2244: A Star Cluster in the Rosette Nebula . ... Explanation: In the heart of the Rosette Nebula lies a bright open cluster of stars that lights up the nebula. The stars of NGC 2244 formed from the surrounding gas only four million years ago and emit light and wind that define the nebula's appearance today. High energy light from the bright young stars of NGC 2244 ionizes the surrounding hydrogen gas clouds to create the red emission nebula appearance. ... About APOD | ...

Еще в разделе: (Показать все результаты (>8278) - www.sai.msu.su/ )

• APOD: August 23, 1996 - NGC 3293: A Bright Young Open Cluster
• APOD: 2002 March 17 - NGC 2244: A Star Cluster in the Rosette Nebula
• APOD: 2009 August 31 - Open Cluster M25

... NGC 2244: A Star Cluster in the Rosette Nebula . ... High energy light from the bright young stars of NGC 2244 ionizes the surrounding hydrogen gas clouds to create the red emission nebula appearance. ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: star cluster - Rosette Nebula - emission nebula - open cluster - NGC 2244 . Publications with words: star cluster - Rosette Nebula - emission nebula - open cluster - NGC 2244 . ... Cygnus Without Stars . ...

Еще в разделе: (Показать все результаты (>136819) - www.astronet.ru/ )

• Reflections on NGC 6188
• IC 410 and NGC 1893
• In the Center of the Rosette Nebula

home publications > mercury . ... Big Clusters, Tiny Galaxies . ... Astronomers struggle to understand why giant star clusters form in the tiniest of galaxies . ... These clusters are probably young versions of globular clusters, but they are commonly called super star clusters. Seven dwarf galaxies within 16 million light-years have formed super star clusters, with one of these galaxies, NGC 1569, possessing two young clusters. ... Super star clusters have a lot to tell us about star formation. ...

Еще в разделе: (Показать все результаты (>1475) - www.astrosociety.org/ )

... STScI-PRC00-25 A DYING STAR IN GLOBULAR CLUSTER M15 The globular cluster Messier 15 is shown in this color image obtained with the NASA Hubble Space Telescope's Wide Field Planetary Camera 2 (WFPC2). ... Known as Kuestner 648, this was the first planetary nebula to be identified in a globular cluster. ... At the present time, the most massive stars remaining in M15 have about 80 percent of the mass of our Sun, a fact that makes the existence of a planetary nebula like K 648 something of a mystery. ...

Еще в разделе: (Показать все результаты (>8118) - www.arcetri.astro.it/ )

• APOD: August 6, 1998 - Infrared Horsehead
• APOD: August 28, 1998 - Hydrogen Trifid
• APOD: 2000 April 24 - Reflection Nebula M78

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 . ...

Еще в разделе: (Показать все результаты (>341) - zebu.uoregon.edu/ )

Astronotes Armagh Planetarium's Stellar Blog! ... Comets and Asteroids . ... Image credit:ESO/J.Emerson/VISTA. ... However others are less pessimistic and it has even been claimed that the mysterious ?Wow! signal? received in 1977 originated from the direction M55.б  Sadly, this still unexplained pulse of radio energy originated from a location rather to the northwest of M55 so I doubt if the source was this cluster (if indeed the signal was genuinely of extraterrestrial origin). ... Mysterious Wow! ...

Еще в разделе: (Показать все результаты (>2811) - www.armaghplanet.com/ )

• Astronotes | Armagh Planetarium's astronomy news from across the Universe -
• The Lagoon Nebula (M8) reveals its secrets | Astronotes
• NGC4666: Secrets of a Starburst Galaxy | 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 (>2916) - www.naic.edu/ )

... 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. ...

Еще в разделе: (Показать все результаты (>1435) - www.mso.anu.edu.au/ )

• Blue Straggler Stars
• Designated Observatory Application
• Julie Banfield | Astronomer

... 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. ...

Еще в разделе: (Показать все результаты (>5163) - star.arm.ac.uk/ )

• Objects in the Sky
• Earthshine
• Research Interests

... A faint, dusty rose of the northern sky, emission nebula IC 410 lies about 12,000 light-years away in the constellation Auriga. The cloud of glowing hydrogen gas is over 100 light-years across, sculpted by stellar winds and radiation from embedded open star cluster NGC 1893. ... These "tadpoles" (seen just below center) are regions of denser, cooler gas, and more slowly resist the erosive radiation from the hot stars. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Еще в разделе: (Показать все результаты (>571) - www.atmob.org/ )

... Harry Teplitz, California Institute of Technology . ... Abstract . ... Carole A. Haswell, Open University . ... Binaries in the Kuiper Belt: Probes of Solar System Formation and Evolution . ... Planet formation occurs in circumstellar disks around young stars. ... Most of the targets are early-type stars, with spectral types ranging from late-B to mid-G. 7 231 . ... Star-star interactions can lead to truncation of nascent disks, disruption of binary systems and even ejection from the cluster. ...

Еще в разделе: (Показать все результаты (>14549) - www.stsci.edu/ )

• HST this week: 211
• Starburst and Galaxy Evolution
• HST this week: 236

... Telescopes . ... The time requests are accepted in an electronic version with on-line form in Russian or English. ... Unregistered request will be disregarded by the Large Telescopes Programm Committee. In exclusive cases the secreatry of the Committee is entitled to accept an observational time request given permission of the Chairman of the Committee or the director of the SAO RAS. The Program Committee considers generally one time request submitted by the principal applicant. ...

Еще в разделе: (Показать все результаты (>347) - mavr.sao.ru/ )

• Galaxy sector, archive 2014
• Galaxy sector, archive 2000
• Galaxy sector, archive 2004

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Survey Telescopes . ... Star Clusters . ... FLAMES . ... 100 Hours of Astronomy . ... IMAX€о 3D Film Hidden Universe . ... This image, the first to be released publicly from VISTA, the worldтАЩs largest survey telescope, shows the spectacular star-forming region known as the Flame Nebula, or NGC 2024, in the constellation of Orion (the Hunter) and its surroundings. ...

Еще в разделе: (Показать все результаты (>57339) - www.eso.org/ )

• The Light and Dark Face of a Star-Forming Nebula | ESO
• AdelePlunkettAstro
• Young star lights up reflection nebula IC 2631 | ESO

8th of February 2015 . International Year of Light 2015 . High resolution radio emission from RCW 49 . ... Benaglia et al. (2013) analyse Molonglo 843 MHz and ATCA 5.5 / 9 GHz radio continuum data. They find two radio shells closely matching the Spitzer infrared emission, showing pillars, filaments and a bright bridge. The image shows the ATCA 9 GHz radio continuum emission in red , the Spitzer 3.6 micron emission in blue and the Spitzer 8 micron emission in green . ... today * ATNF | ...

Еще в разделе: (Показать все результаты (>15015) - www.atnf.csiro.au/ )

• Publications
• PPTA Wiki | PmWiki / Forms
• The Orion Nebula

THE SUBSYSTEMS OF THE MILKY WAY HALO. ... A catalogue of homogeneous fundamental astrophysical parameters for 145 globular clusters is composed on the base of the data of compilative catalogue by Harris (1997) and from another literature. ... In addition, it has large rotation velocity ( V rot =77?33 km/s), appreciable radial and vertical metallicity gradients equal by value, and has the oldest average age (subsystem of the old halo). ... Characteristic parameter of globular cluster subsystems. ...

Еще в разделе: (Показать все результаты (>96) - ip.rsu.ru/ )

The composite image at left, taken in visible and near-infrared light, reveals the location of five tiny galaxies clustered together 13.1 billion light-years away. ... The close-up images at right, taken in near-infrared light, show the puny galaxies. The letters "a" through "e" correspond to the galaxies' location in the wide-field view at left. ... Credit: NASA/ESA/M. Trenti (Univ. of Colorado, Boulder, and Institute of Astronomy, Univ. of Cambridge, UK)/L. Bradley (STScI)/the BoRG team ...

Еще в разделе: (Показать все результаты (>7052) - www.astronomy.com/ )

• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BC9B39ACA-E133-412F-9288-BBD15D2BFFB6%7D
• Do globular clusters form in a galaxy's halo or migrate in from outside? If the
• Clusters of monster stars lit up the early universe | Astronomy.com

... X-rays are made up of photons that are emitted from stars, or quasars, or supernovae, the sun, or simply: anything that is undergoing a change either in size or temperature or giving out heat. ... in an X-ray binary star system, in which one normal star's orbit is crossed by a neutron star, when the neutron star by means of gravitational pull takes matter from the normal star X-rays form. ... Artists conception of a normal star (HDE 226868) and a black hole taking matter from the normal star. ...

Еще в разделе: (Показать все результаты (>2366) - hea-www.harvard.edu/ )

• Doug Burke: Publications List
• SAO Summer Intern Program Projects, 2015
• SAO Summer Intern Program Projects, 2011

DSS input form . The SuperCOSMOS Sky Survey . ... Pi of the Sky . The Sloan Digital Sky Survey . ... Extragalactic DataBase . ... SIMBAD Astronomical Database . ... Query form . ... The Two Micron All Sky Survey. ... The NRAO VLA Sky Survey . ... NIST Atomic Spectra Database (Lines Form) . ... The UVES Paranal Observatory Project . ... Rochester Astronomy . ... European Southern Observatory . European Astronomical Society . ... Astronomical Society of the Pacific . ... Sat24 BTA on line . ...

Еще в разделе: (Показать все результаты (>883) - jet.sao.ru/ )

• http://jet.sao.ru/jet/~bars/othrlink.htm
• Publications
• GRB follow-up team

... Dept. for Physics of Stars&Galaxies . ... Using a database view Sloan Digital Sky Survey (SDSS), containing almost a million spectra created 15,000 sample galaxies with active star formation, which is used for various studies and physical state of evolution of galaxies. ... Star clusters of the Galaxy . The project MWSC (Milky Way Star Clusters) directory using 2MASS, which includes nearly 500 million vision to the limit Ks = 15.3, analyzed more than 4,000 cluster-like objects in the galaxy. ...

Еще в разделе: (Показать все результаты (>564) - www.mao.kiev.ua/ )

• Publications
• MAO NASU :: Topic: 1st Announcement IAU Symposium 312 Star Clusters and Black
• Dept. for Physics of Stars&Galaxies

... ISC Kosmotras . Top Management Founder of ISC Kosmotras - Dr. Vladimir A. Andreev News . ... Dr. Vladimir A. Andreev, Founder of ISC Kosmotras, Member of the Board . ... Peaceful and rational use of RS-20 ICBMs after their withdrawal from service with the Russian Ministry of Defense (MoD) has been in the main focus of Dr. Andreev s attention since early 1990s. Dr. Andreev is one of the founders of an international cooperation program and process called the Dnepr Program . ... Dnepr Program . ...

Еще в разделе: (Показать все результаты (>95) - www.kosmotras.ru/ )

• Dnepr Launch Manifest
• Dnepr LV
• Moscow, 3 August 2011. Launch of Dnepr LV with eight payloads onboard is