... Submitted by Al Takeda on 08/19/2007 20:58:20 . Globular Cluster M-13 and Galaxy NGC6207 . Globular Cluster M-13 and Galaxy NGC6207 in Hercules - This globular cluster can be seen as a small fuzzy patch with the naked eye under dark skies. With a 90 mm scope the outer stars of the cluster become visible but it will require an 8 inch scope or greater to show it's true grandeur. ... 16 June 2007. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

... NGC 1569: Heavy Elements from a Small Galaxy . ... Still, heavy elements can profoundly influence galaxy and star formation ... not to mention the formation of planets and people. In this tantalizing false-color x-ray image from the orbiting Chandra Observatory , small dwarf galaxy NGC 1569 is surrounded by x-ray emitting clouds of gas thousands of light-years across. ... NASA Official: Jay Norris. ... Publications with keywords: dwarf galaxy . ... NGC 1569: Starburst in a Dwarf Irregular Galaxy . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Our Galaxy . ... Space Flight . ... Posted on April 21, 2011 | No Comments An image from the European Southern Observatory, reveals two galaxies, NGC 3169 and NGC 3166, meeting in intergalactic space. ... Continue Reading.. ... 1 Comment NGC 2841 is a rather beautiful flocculent spiral galaxy. The Hubble Space Telescope recently imaged NGC 2841 as part of an investigation into how new stars are created. ... Posted on October 28, 2010 | ...

SPACE.com -- Faraway Galaxy Plays Peekaboo 4/1/08 11:20 PM Yahoo! Buzz advertisement Faraway Galaxy Plays Peekaboo By Ker Than Staff Writer posted: 10 January 2007 1:50 p.m. ET SEATTLE - The most distant star cluster astronomers have ever observed has been found behind one of the nearest clusters to Earth. ... The largest substantial population --say more than 100 --of star clusters in any other galaxy is located about 10 times closer than this object," Kalirai told SPACE.com. ...

... Natalya V. Raguzova and Sergei B. Popov . ... We present a compilative catalogue of Be/X-ray binaries and candidates in the Galaxy and in the Large and Small Magellanic Clouds. This catalogue contains 160 sources and provides information on names and spectral types of optical components, distances, on spin characteristics of neutron stars, and on orbital and X-ray properties of binary systems. ... Be/X-Ray Binaries and candidates in the Galaxy . Galactic sources: comments to the Table 1 . ...

... 2002 July 25 . NGC 1569: Heavy Elements from a Small Galaxy . ... Still, heavy elements can profoundly influence galaxy and star formation ... not to mention the formation of planets and people. In this tantalizing false-color x-ray image from the orbiting Chandra Observatory , small dwarf galaxy NGC 1569 is surrounded by x-ray emitting clouds of gas thousands of light-years across. ... About APOD | ...

... Archives . ... Guinness, Gosset, Fisher, and Small Samples by Joan Fisher Box . ... Gosset worked out the exact answer to his question about the probable error of the mean and tabulated the probability values of his criterion z=(m-?)/s for samples of N=2,3,?, ... Tags: distribution , error , Gosset , guinness , history , sampling distribution , small sample , student t . ... Comment ( RSS ) | ... Entries RSS . Comments RSS . ... Chandra Blog . ... Entries (RSS) and Comments (RSS) . ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . ... Parkes | ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ... HI in Elliptical Galaxies . ... Previous Section: Large and small elliptical . ...

... Session Chair: . ... Searches for the First Galaxies: Past, Present and Future (Invited) . ... The Hubble Ultra Deep Field 2012: galaxy evolution at z=7-10 . ... Quantifying the Evolution of the Specific Star Formation Rate out to z~7 using Gravitationally Lensed Galaxies from CLASH . ... The role of AGN feedback in the evolution of massive galaxies . ... Evolution in the HI Gas Content of Galaxy Groups: Pre-processing and Mass Assembly in the Current Epoch . ... Gas dynamics in galaxies (Invited) ....

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... Team makes first direct measurement of distant galaxy's magnetic field . ... Using a powerful radio telescope to peer into the early universe, a team of California astronomers has obtained the first direct measurement of a nascent galaxy's magnetic field as it appeared 6.5 billion years ago. ... Until recently, astronomers knew very little about magnetic fields outside our own galaxy, having directly measured the magnetic field in only one nearby galaxy. ... Magnetic fields stronger than expected . ...

Title: A New Model of the Gravitational Lens 0957+561 and a Limit on the Hubble Constant . Authors: Norman A. Grogin , Ramesh Narayan (Harvard Univ.) ... Title: ROSAT/PSPC observation of the distant cluster CL0939+472 . ... Title: Interaction in the Bimodal Galaxy Cluster A3528 . ... Title: Cosmological Implications of Galaxy Cluster Evolution . ... Title: Galaxy Cluster Virial Masses and Omega . ... Matches 201 to 222 from a total of 222 matches for the search pattern galaxy cluster . ...

... Survey Telescopes . ... This schematic image represents how light from a distant galaxy is distorted by the gravitational effects of a nearer foreground galaxy, which acts like a lens and makes the distant source appear distorted, but brighter, forming characteristic rings of light, known as Einstein rings. An analysis of the distortion has revealed that some of the distant star-forming galaxies are as bright as 40 trillion Suns, and have been magnified by the gravitational lens by up to 22 times. ...

... STScI-PRC01-04 HUBBLE'S ULTRAVIOLET VIEWS OF NEARBY GALAXIES YIELD CLUES TO EARLY UNIVERSE Astronomers are using these three NASA Hubble Space Telescope images to help tackle the question of why distant galaxies have such odd shapes, appearing markedly different from the typical elliptical and spiral galaxies seen in the nearby universe. ... Light from these galaxies travels great distances (billions of light-years) to reach Earth. ... These stars emit mostly ultraviolet light. ...

... For us to see them from such great distances, quasars must be producing enormous energy -- they are about 1000 times brighter than an average galaxy! ... One of their choices for the energy source of quasars was a black hole. ... On the one hand, it may seem difficult to think that mere friction between bits of matter could account for the energy of a quasar, but, on the other hand, gravity is unimaginably strong near a black hole. ... How does matter actually rush towards the black hole? ...

Keep the size of the tarfile to a minimum by excluding files that can be recreated from files contained in the tarfile. Examples are: .o (object) files that can be recreated by compiling the program source code.dvi files produced by processing TeX and LaTeX source files.ps (postscript) files generated by drawing and publishing packages. After you have created a tarfile, you can then reduce its size by using the compress command. ... This will create a file called project.tar.Z . ...

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 | ...

... Assignments 4, 5 and 6 all involve the imaginary world of Ziggy. ... Each week, you should write a short executive briefing to Captain Howard, explaining to her what you have learned from that week's data. ... A 500 word limit applies to each briefing you submit. You will submit three briefing papers (due dates below): one for each data release. ... First briefing due (Assignment 4). 2nd data set released. ... Second briefing due (Assignment 5). 3rd and final data set released. ...

... The search for distant objects which can be both galaxies and quasars is one of the most important problems of observational astrphysics, because it allows one to determine cosmological parameters connected with the time of appearence and evolution of stellar systems, large scale structure of the Universe. ... Radio galaxies are important objects to be studied because they are sources of infrared-optical-ultraviolet continuum, emission lines and continual radio emission. ...