... Gamma Ray Earth . ... The pixelated planet above is actually our own planet Earth seen in gamma rays - the most energetic form of light. ... Located 4,000 light years away in the disk of our Galaxy, NGC 6188 is home to the Ara OB1 association, a group of bright young stars whose nucleus forms the open cluster NGC 6193. Simulated Gamma ray Sky . ... NGC 1579: Trifid of the North . ... About 2,100 light-years away and 3 light-years across, NGC 1579 is a captivating study in color. ...

Еще в разделе: (Показать все результаты (>139374) - www.astronet.ru/ )

... 2006 December 20 . Star Forming Region NGC 6357 . ... Explanation: For reasons unknown, NGC 6357 is forming some of the most massive stars ever discovered. Near the more obvious Cat's Paw nebula, NGC 6357 houses the open star cluster Pismis 24 , home to these tremendously bright and blue stars. The overall red glow near the inner star forming region results from the emission of ionized hydrogen gas. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

Еще в разделе: (Показать все результаты (>7529) - www.sai.msu.su/ )

• APOD: 2006 December 19 - Massive Stars in Open Cluster Pismis 24
• APOD: 2005 December 11 - R136: The Massive Stars of 30 Doradus
• APOD: 2001 December 18 - Sharpless 212 in Hydrogen and Sulfur

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 (>2824) - www.armaghplanet.com/ )

• Astronotes | Armagh Planetarium's astronomy news from across the Universe -
• ESO reveals end of cosmic Dark ages | Astronotes
• Kepler-11: a strange and crowded planetary system | Astronotes

... STScI-PRC00-08 HUBBLE OPENS ITS EYE ON THE UNIVERSE AND CAPTURES A COSMIC MAGNIFYING GLASS Scanning the heavens for the first time since the successful December 1999 servicing mission, NASA's Hubble Space Telescope has imaged a giant, cosmic magnifying glass, a massive cluster of galaxies called Abell 2218. ... The cluster is so massive that its enormous gravitational field deflects light rays passing through it, much as an optical lens bends light to form an image. ... Blue pinpoints hot young...

Еще в разделе: (Показать все результаты (>9371) - www.arcetri.astro.it/ )

• APOD: December 18, 1999 - Irregular Galaxy Sextans A
• The Planet Jupiter
• Arcetri Star-Formation Group Publications

... A Snapshot Survey of The Most Massive Clusters of Galaxies . Abstract . ... Distances to Eclipsing M Dwarf Binaries . ... Asteroseismology of Extrasolar Planet Host Stars . ... Globular clusters are the oldest structures within the Milky Way that are directly accessible to observation. ... The present program aims to use the Fine Guidance Sensors on HST to measure the pulsational modes in the star HD 17156, an 8th magnitude G-type subgiant at a distance of ~ 78 parsecs from the Sun. ...

Еще в разделе: (Показать все результаты (>15126) - www.stsci.edu/ )

• HST this week
• HST this week: 211
• HST this week: 337

3) Planets and Brown Dwarfs . ... By its nature, this method is most sensitive to massive planets orbiting close to their stars. ... That means that some of the more massive extrasolar planets could actually be brown dwarfs (although the statistics of the finds suggest that most of them are not). ... Another possible difference between brown dwarfs and massive planets is how they are born. ... They would base the fundamental definition on the mode of formation: a planet is built from planetesimals. ...

Еще в разделе: (Показать все результаты (>1360) - www.astrosociety.org/ )

• ASP: Big Clusters, Tiny Galaxies
• ASP: There's More to Light Than Meets the Eye
• ASP: The Music of the New Spheres?

... Bad Astronomy . ... Mad Science . ... The Nine Planets . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Does the discovery of dark matter account for the missing light? ... Now, when I look at your question, I think you may be confusing Olbers' paradox with another issue, called the Missing Mass problem. ... In other words, most (perhaps as much as 90%) of the mass of the cluster must be dark-- matter that literally did not emit light. ... 2008 Phil Plait. ...

Еще в разделе: (Показать все результаты (>490) - www.badastronomy.com/ )

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

... Feeding the Monster: Gas Caught in its Death Spiral into a Massive Black Hole . ... Stromlo Professor Mike Dopita have used the Hubble Space Telescope to discover how a massive Black Hole in a nearby galaxy feeds itself. ... Earlier Hubble Telescope data obtained by another team member, Professor Holland Ford of Johns Hopkins University in Baltimore, Maryland, had found a disk of gas rushing around the Black Hole at a speed of 500 kilometers a second. ...

Еще в разделе: (Показать все результаты (>1455) - www.mso.anu.edu.au/ )

• GSAOI Orion Nebula Cluster Science Page
• Blue Straggler Stars
• Home Page of Raquel Salmeron

. Similar to an optical lens bending light to form an image, the galaxy cluster Abell 2218 is so massive and compact that light rays passing through it are deflected by its enormous gravitational field. This process (called gravitational lensing) magnifies, brightens, and distorts images of objects that lie far beyond the cluster. The thin arcs are distorted images of distant galaxies roughly 5-10 times farther than the cluster. A. Fruchter / STScI / NASA

Еще в разделе: (Показать все результаты (>7405) - www.astronomy.com/ )

• What factors determine if a massive star (say, 100 solar masses) forms instead
• Newly discovered planet in the Hyades cluster could shed light on planetary
• If a supernovaт??s original star is massive enough to form a black hole, why is

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Aurora . ... Corona . Fireballs . ... Zodiacal Light . ... The first thing to do is get acquainted with what the night sky looks like. ... The National Schools Observatory web site has very good horizon views of the sky for the current night. ... If the object is moving slowly across the sky then it may be one of the larger satellites. ... Cloudbait Observatory - October 2002 . ... October 2003 Aurora at Armagh . ...

Еще в разделе: (Показать все результаты (>3433) - star.arm.ac.uk/ )

• Armagh Observatory
• Stars Beyond Maturity
• Twelve Days of Mercury this Christmas

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 Sun Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic Evolution ... So far, one planet has been studied by this method. ...

Еще в разделе: (Показать все результаты (>623) - www.aaa.org/ )

• http://www.aaa.org/s932/images/09fallclass3.pdf
• http://www.aaa.org/s932/images/09fallclass4.pdf
• http://www.aaa.org/s932/images/09fallclass5.pdf

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 (>663) - zebu.uoregon.edu/ )

• Constrains on Dark Matter
• The Galaxy Gallery Page 6: Comparative Morphology
• Astronomy HyperText Book: Interstellar Medium

... STScI-PRC95-45a CRUCIBLE OF CREATION: PANORAMIC HUBBLE MOSAIC ZOOMS IN ON MAELSTROM OF STAR BIRTH This spectacular color panorama of the center the Orion nebula is one of the largest pictures ever assembled from individual images taken with NASA's Hubble Space Telescope. ... Though this 2.5 light-years wide view is still a small portion of the entire nebula, it includes almost all of the light from the bright glowing clouds of gas and a star cluster associated with the nebula. ...

Еще в разделе: (Показать все результаты (>2650) - www.naic.edu/ )

• http://www.naic.edu/~astro/frontiers/NewScieComa_Apr07.pdf
• The Pleiades
• Pulsar Highlights - A Dozen new MSPs in Globular Clusters

... Science . ... Science Users Information > Science and Technical Meetings > Conferences 2012 > Star and Planet Formation Workshop . ... Observing with ESO Telescopes . ... On 14 May 2012 we held a one-day workshop in the ESO Auditorium with the aim of bringing the star and planet formation community from ESO-MPE-USM together. ... J. Ascenso (ESO) Star formation in giant complexes . ... C. Manara (ESO) The role of accretion in the formation of stars and planets: a VLT/X-Shooter perspective . ...

Еще в разделе: (Показать все результаты (>65765) - www.eso.org/ )

• ESO - PhD Thesis Topics offered by ESO Faculty Members
• ESO - Thesis Topic: High-Contrast Imaging of Planet-Forming Disks in
• ESO - Research Area: STELLAR POPULATIONS

Collins School Star Party - Oct. 5, 1999 Presented by the North Shore Amateur Astronomy Club (NSAAC) For more information: NSAAC: http://www.star.net/people/~nsaac 1.0 Using a telescope Close one eye (use your hand if it's easier) and look straight down into the eyepiece. ... Massive stars use up their fuel much faster - in some cases less than 100 million years. ... Jupiter _____. ... With the chart at left and using the brightest stars as a guide, see if you can find Uranus with binoculars. ...

Еще в разделе: (Показать все результаты (>66604) - www.atmob.org/ )

• http://www.atmob.org/library/member/brewster/whittierstarparty.pdf
• Amateur Telescope Makers of Boston

... Articles | ... Forums . ... 230 deg . 49 deg . ... 130 deg . ... More Info . ... 210 deg . ... 168 deg . ... 249 deg . ... 195 deg . ... 271 deg . ... 110 deg . ... 338 deg . ... July 15 . 247 deg . ... 224 deg . ... 340 deg . ... July Phoenicids (PHE) . ... August 10 . 341 deg . ... 339 deg . ... 307 deg . ... 334 deg . ... 335 deg . ... 286 deg . ... 327 deg . ... 262 deg . ... 102 deg . ... 153 deg . ... 117 deg . ... December 2 . ... 123 deg . ... 100 deg . ... www.astronomy.net . ...

Еще в разделе: (Показать все результаты (>1435) - www.astronomy.net/ )

• You Can Make Stellar Images Brighter - an Astronomy Net Article
• HA HA - an Astronomy Net Blackholes2 Forum Message
• The Astronomy Shop - Books - by Astronomy Net

... 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 (>3812) - hea-www.harvard.edu/ )

• The AstroStat Slog massive data
• The AstroStat Slog Blog Archive A confession from a former ?keV? junkie (2.
• SAO Summer Intern Program Projects, 2004

Next: Caverns in Binary Systems Up: Ejectors in Massive Binary Previous: The Number of Ejectors . In the very first years after the discovery of radiopulsars, it became clear that for some reason they avoid forming binary systems. ... Illarionov and Sunyaev (1975)[ 76 ] noted the fact that coherent radiowaves with a wavelength longer than 75 cm, which make it possible to observe most of the radiopulsars, are absorbed effectively in the stellar wind of a normal star. ...

Еще в разделе: (Показать все результаты (>671) - xray.sai.msu.ru/ )

• Seminars
• Black Hole Creation in Massive Binary Systems
• The Evolutionary Status of Radiopulsars in Massive Binary Systems

... 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 (>577) - www.mao.kiev.ua/ )

• Science - Page 2
• Dept. for Physics of Stars&Galaxies
• Achievements - Page 3

... We have examined the diversity of planets and planetary systems that arise from oligarchic growth and gas accretion onto massive cores, by means of N-body simulations combined with a sophisticated disc model. ... Slow planetary growth resulted from the relatively low mass of solids in the disc, and one consequence of this is that planets underwent limited orbital migration during the lifetime of the gas disc. ... Figure 1 shows an example of this migration behaviour in a single-planetin-a-disc run. ...

Еще в разделе: (Показать все результаты (>1647) - www.mrao.cam.ac.uk/ )

• http://www.mrao.cam.ac.uk/wp-content/uploads/2014/04/CTerquem.pdf
• http://www.mrao.cam.ac.uk/~krause/paris2002_KC.ps.gz
• Astrophysics Group AMI Science