... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... What is the heaviest element that astronomers can detect? ... The heaviest element that astronomers have found in space is the same as the heaviest element naturally occurring on Earth: uranium. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email...

... Epimetheus: A Small Moon of Saturn . ... Epimetheus sometimes orbits Saturn in front of Janus, another small satellite, but sometimes behind. NGC 281: The Pacman Nebula . ... NGC 281 is a busy workshop of star formation. ... Desolate Mars: Rub al Khali . ... A Lenticular Cloud Over Hawaii . ... Like grains of sand on a cosmic beach, individual stars of large spiral galaxy NGC 300 are resolved in this sharp image from the Hubble Space Telescope's Advanced Camera for Surveys (ACS). ...

Welcome to my home page. ... Jet–intracluster medium interaction in Hydra A – I. Estimates of jet velocity from inner knots, M.A. Nawaz, A.Y. Wagner, G.V. Bicknell, R.S. Sutherland B.R. McNamara . ... Ultrafast Outflows: Galaxy-Scale Active Galactic Nucleus Feedback, A. Y. Wagner, M. Umemura, and G. V. Bicknell . Driving Outflows with Relativistic Jets and the Dependence of Active Galactic Nucleus Feedback Efficiency on Interstellar Medium Inhomogeneity, A. Y.Wagner, G.V. Bicknell and M. Umemura . ...

... Archives . ... I?ve copied below the text of an ISBA announcement for the first workshop in a new series addressing Bayesian methods for machine learning. It builds on the model of the earlier well-known ?Bayesian case studies? workshops, where just a few applications are featured at each workshop, with the format tailored to produce a lot of back-and-forth between application scientists and statisticians. ... Workshop on Case Studies in Bayesian Statistics and Machine Learning . ...

An international group of astronomers, including Dr Simon Jeffery of the Armagh Observatory, has used the Hubble Space Telescope to verify the origin of a very unusual and rare type of star. The group's studies confirm that the so-called "extreme helium stars" are formed by the merger of two white dwarf stars. ... One, dubbed the final-flash (FF) model, suggests an outer helium layer of a cooling white dwarf ignites, producing an extra thermal pulse that balloons the star into a giant. ...

Supernova 2002fk in NGC 1309 . This page is devoted to information on Supernova 2002fk in NGC 1309 Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. ... 2002/09/19.848 . ... JM Llapasset image . ... 13.0 . ... Josep M. Bosch . ... Josep M. Bosch image . ... vsnet-campaign-sn 476 ] SN 2002fk in NGC 1309 . ...

... 2003 December 19 . Inside the Elephant's Trunk . ... JPL , Caltech , NASA . Explanation: Spectacular first images from the newly christened Spitzer Space Telescope include this penetrating interior view of an otherwise opaque dark globule known as the Elephant's Trunk Nebula . ... The Spitzer Space Telescope was formerly known as the Space Infrared Telescope Facility ( SIRTF ) and is designed to explore the Universe at infrared wavelengths. ... About APOD | ... NASA Official: Jay Norris. ...

... ESO Science Newsletter December 2015 . 17 Dec 2015 . ... This newsletter is a summary of recent ESO Science Announcement items. Follow the links or visit ESO Science Announcements to read more. ... Read more . ... The allocation of ESO telescope time for Period 97 (1 April БЂ“ 30 September 2016) is expected to be emailed in the week beginning 21 December 2015. ... ESO Workshop, ESO Headquarters, Garching, Germany, 27 June БЂ“ 1 July, 2016 . ... Joint ESO, ALMA, NAOJ, NRAO Workshop. ...

... Liyong Liu (NAOC) . Site testing on seeing conditions of the astronomical observatories over China are briefly reviewed, including Xionglong station of NAOC, Gaomeigu station of Yunnan Observatory, Delingha station of Purple Mountain Observatory. ... PDF [3.0€аMB] October 8, 09:55 10:20 . ... In this paper, we will review the site survey activities in the past years, and present the site-testing results on the Oma site, including cloud cover, seeing, water vapor, transparency and sky brightness. ...

... Astronomy and Astrophotography - amateur tips and ideas from personal experience. ... CNES : CLEMENTINE data Server - Access to 1.8 million lunar images . ... Astrofili on the Web - Dr. Fabio Marino's CCD images and links. Astronomical Images - Deep-sky astronomical photographs. ... Astronomy Page - collection of amateur astrophotographs, along with observatory and Hubble images. ... Igor's Astronomy Page - with thumbnail links to images from observatories, including the Hubble Space Telescope. ...

... GOODS unites extremely deep observations from NASA's Great Observatories, Spitzer , Hubble , and Chandra , ESA's Herschel and XMM-Newton , and from the most powerful ground-based facilities, to survey the distant universe to the faintest flux limits across the electromagnetic spectrum. ... The space-based observations are complemented by ground-based imaging and spectroscopy, including extensive commitments of ESO and NOAO observing time. ... 2010-04-10: Deep VLA 1.4 GHz data for GOODS-North . ...

Winer Observatory P.O. Box 797, Sonoita, Arizona 85637-0797, USA . ... Fees . ... 2/3-m Telescope . ... Irvin M. Winer . ... Site . ... Telescope Aperture / Mount . ... 20,000 . ... Meade 20-inch MAX on MAX Mount . ... Housing in our automatic observatory at our site near Sonoita, Arizona . ... Telescope (you provide the telescope, mount, control computer, cables, etc.) ... Long distance telephone charges for calls initiated by your computer or staff on Winer telephones . ... 2013 Winer Observatory. ...

XmCCD ----- XmCCD has been tested most recently on Suse 10.1 and Suse 10.3 and it will probably run on most other recent Linux distributions. ... This distribution includes source code to utilize the Santa Barbara Instrument Group (SBIG) shared library libsbigudrv.so with a Motif-based graphical user interface program to control SBIG astronomical CCD cameras. ... The sources for these programs are available from the XmCCD home at http://www.astro.louisville.edu/moore/software. ...

In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

Discover the cosmos! ... December 6, 1999 . M83: The Southern Pinwheel Galaxy from VLT . ... Explanation: M83 is one of the closest and brightest spiral galaxies on the sky. Visible with binoculars in the constellation of Hydra , majestic spiral arms have prompted its nickname as the Southern Pinwheel. Although discovered 250 years ago, only in this century was it appreciated that M83 was not a gas cloud but a barred spiral galaxy much like our own Milky Way Galaxy . ... About APOD > . ...

... PmWiki / . visitors (intermediate) Web feeds are a convenient mechanism to let visitors be notified of changes to a site. ... Web feeds are commonly recognized by terms such as RSS , Atom , and web syndication . ... Using a feed action such as ?action=rss or ?action=atom on a trail generates a web feed (often called a "channel") where each page on the trail is an item in the feed. ... The feed url will be the name of a trail page with ?action=rss or ?action=atom added to the end of the url. ...

... Jobs By Email . ... As one of the elements of a major strategic investment in the Physics Department, which includes a 44M development of research and teaching facilities and an injection of new posts, the University invites applications for two Lectureships or Readerships in Astrophysics. ... Grade: Lecturer Grade B - Senior Lecturer Salary: Lecturer 30,013 39,160 Reader 40,335 46,758 . ... The University of Bristol . ... If you apply for this position, please say you saw it on jobs.ac.uk . ...

... Arcs are the most typical auroral forms in the premidnight sector auroral oval . ... There are two types of electric fields related to auroral arcs (see, e.g., Johnson et al., ... The first one, polarization electric field, forms withing the arc because of the increased ionospheric conductivity (de la Beaujardiere, 1977, 1981). ... Res., ... Lanchester, B. S., K. Kaila, I. W. McCrea, Relationship between large horizontal electric fields and auroral arc elements, J. Geophys. ... Geophys., ...

... Browse on Line . ... To get this to work, add a macro menu item which calls open_include() . ... Oops. ) return } # # We have a filename ; now run through our list of paths see # if we can open the file . # include_path = $g_ include _path path_separator = : bpos = 0 epos = search_string( include_path , path_separator, bpos ) while( epos bpos ) { path_bit = substring( include_path , bpos , epos ) if( open_with_test (path_bit / ...

... 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 . ...