... A Galaxy Gravitational Lens . ... 20.12.1995 . ... Credit Copyright: NASA , HST , K. Ratnatunga. Myungshin Im ( JHU ) Explanation: Sometimes it takes a keen eye to see a good mirage. ... Consequently, the huge mass of the galaxy is able to pull separate images of the quasar around it - an effect called gravitational lensing . ... 1995 1996 . ... Publications with keywords: gravitational lens . ... MACS 1206: A Galaxy Cluster Gravitational Len . ... Abell 370: Galaxy Cluster Gravitational Lens . ...

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• Galaxy Cluster Abell 1689 Deflects Light
• Around The Arches Cluster
• Galaxy Cluster A2199

... 2000, ApJ, 537, L49 . ... F. Palla . Invited Talk at the IAU Symposium 200 "The formation of binary stars" eds. R.D. Mathieu and H. Zinnecker (ASP Conf. Ser.) in press . Optical follow-up of ROSAT discovered candidate members of the open cluster Coma Berenices . ... 2000, A , in press . ... 2000, ApJ, in press . ... 2000, ApJ, in press (Sept. ... 2000, ApJ Lett., in press . ... Click to examine publications from other years . ... Star Formation Group . ... Arcetri Home Page . ...

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• FIRST LIGHT OF ARNICA AT TNG
• APOD: December 13, 1997 - The Coma Cluster of Galaxies

... 2001 December 10 . Globular Cluster M15 . ... Explanation: Stars, like bees, swarm around the center of bright globular cluster M15. This ball of over 100,000 stars is a relic from the early years of our Galaxy , and continues to orbit the Milky Way's center . ... The above image , taken in ultraviolet light with the WIYN Telescope , spans about 120 light years and shows the gradual increase in stars toward the cluster's center. ... About APOD | ...

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• APOD: 2005 December 8 - X-Rays from the Perseus Cluster Core
• APOD: December 20, 1995 - A Galaxy Gravitational Lens
• APOD: 2003 December 27 - The Pleiades Star Cluster

... In most situations, light helps us to see. But when it comes to looking at the night sky, light actually blocks our vision. ... You should be able to see around 2,500 stars with your naked eyes, but if you live in a big city or town, you probably see less than 10 stars on a normal night! This amazing space picture shows the shining star clusters and swirls of colourful gases of the Carina Nebula: an enormous expanse of gas, dust and stars lying deep in the heart of the Milky Way. ...

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• The Very Large Telescope Project
• Light Echoes around SN1987A | ESO
• Shell around V445 Puppis (December 2005) | ESO

Galactic Wind Shells and High Redshift Radio Galaxies . ... M.Krause . Astronomy & Astrophysics, v.436, 845-851 . Very Light Jets II: Bipolar large scale simulations in King atmospheres [small version] . ... Simulations of Astrophysical Jets in Dense Environments . M.Krause, V.Gaibler & M.Camenzind . in: High Performance Computing in Science and Engeneering '05 eds.: E.Krause, W.J ger & M.Resch. ... M.Krause & M.Camenzind . ... Martin Krause & Paul Alexander . ... Martin Krause . ...

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• Astrophysics Group AMI Science
• Astrophysics Group AMI Publications
• Martin Krause - Large Scale Very Light Jet Simulation

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. ...

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• ASP: By the Light of the Moon
• ASP: Lighting the Nebulae
• ASP: Beacons in the Gloom

... Galileo was one of the first to study our Milky Way with a telescope in 1610 and he discovered that it was composed of a huge number of faint stars. ... Image Credit: NASA Elliptical Galaxy This image from NASA's Hubble Space Telescope shows a good example of an elliptical galaxy at the centre of a galaxy cluster that is over 450 million light-years away in the direction of the constellation Centaurus. ... Then the Andromeda galaxy was first classed as a galaxy outside of our own Milky Way. ...

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• M55 globular cluster seen by ESO | Astronotes
• Astronotes | Armagh Planetarium's astronomy news from across the Universe -
• Stars | Astronotes - Part 2

... 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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• Thesis Figures
• New Results Confirm Dark Galaxy Existence
• AAS 1996 January Meeting Photo Release Images

ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ... JING WANG has been studying the multi-wavelength light, morphology and environment of galaxies . ...

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• ATNF Media Release - December 1, 1998
• Shea Brown Homepage
• Compact Stellar Systems in the Fornax Cluster: Super-massive Star Clusters or

... To appear in: the proceedings of IAU Colloquium 171: The Low Surface Brightness Universe , held 5-10 July 1998 in Cardiff (United Kingdom) . ... PostScript: prep1297.ps (179Kb) . ... Space Telescope Science Institute, 3700 San Martin Drive,Baltimore, MD 21218, USA . ... huizinga@stsci.edu . Last updated, November 11, 1998 . ...

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• HST this week
• High Redshift Cluster Projects
• Dr. Laura Watkins

... Compact Binaries . ... Unlike the Sun, most stars in our Galaxy orbit another star: these systems are called binary stars. Generally it takes many years for the two stars to orbit around each other. ... These binaries are interesting for many reasons. One is that they are predicted to emit lots of gravitational waves. ... Over time as gravitational waves are emitted, the time taken for the two stars to orbit one another changes by a small but measurable amount. ...

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• Armagh Observatory
• Southern African Large Telescope (SALT)
• Light Pollution

... 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. ...