... Tonight's Sky . ... The Magazine . News . Observing . ... Magazine . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Lowell Observatory . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

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• McDonald Observatory at University of Texas, Austin | Astronomy.com
• Kevin Schindler, Lowell Observatory | Astronomy.com
• Chandra X-ray Observatory, Cambridge, Massachusetts | Astronomy.com

... Recently a new comet, designated 1998 H1, was discovered by observer Patrick L. Occultations and Rising Moons . ... This dramatic telephoto picture was taken at one such location, Ascension Island in the South Atlantic. Callisto Enhanced . ... Callisto is half rock and half ice. This moon of Jupiter is approximately the size of the planet Mercury, making it the third largest moon in the Solar System, after Ganymede and Titan. Callisto.. ... Did a gamma-ray burst precede this supernova? ...

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3rd of March 2015 . 2015 ATNF Observing Schedules . The ATNF observing schedules for the 2015 April semester are now available on-line. All ATNF observations are carried out by the observers from the Science Operations Center (SOC), located at the ATNF Headquarters in Sydney, unless permission to observe remotely has been granted (generally to experienced observers who have recently observed from the SOC). ... today * ATNF | ... ATCA | ...

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• A page of useful links
• Picture Gallery for Wildflowers in the Sky
• Picture Gallery

... In these pages we have collected contributions by fellow amateurs supernovae hunters. These contributions concern mainly the discoveries they made and their searching activity. ... External link) . The discovery of SN1997bp in NGC 4680 (from TA Magazine, vol34, n.397) - text and images. Visual Supernova Searching With The 40 inch Telescope at Siding Spring Observatory . ... A web page on SN1995G in NGC 1643 (external link to the South Australia Astronomical Society) - text and images. ...

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• SAI SN RESEARCH GROUP
• Mercury Picture List
• APOD Index - Stars: Neutron Stars

... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

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• Manastash Ridge Observatory Home Page

Mosiac of photos of Mercury taken from Mariner 10 in 1974 110k gif ; 2000k gif ; 187k jpg . ... recently reprocessed mosaic 132k gif ( caption ) . Mariner 10 mosaic 488k gif . another Mariner 10 mosaic 690k gif . another mosaic 24k jpg . ... Caloris Basin 319k gif ; 238k jpg ; 292k gif ; 3000k gif ; 108k jpg . ... Southwest Mercury 31k jpg ; 1000k gif ; 488k gif . Hills of Mercury 127k jpg ; 185k gif ; 614k gif . ... Degas, a rayed crater (Mariner 10) 439k gif ( caption ) . ...

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• The Sun -- History
• Spacecraft Observing the Sun and the Heavens above

... Click on an object in the solar system or choose from the list at left to learn more . The Arecibo Observatory planetary radar is the world's most powerful instrument for post-discovery characterization and orbital refinement of near-Earth objects. ... The Solar System Studies group is a department of the Arecibo Observatory, which is an NSF facility operated under cooperative agreement by SRI International, Universities Space Research Association (USRA), and la Universidad Metropolitana (UMET). ...

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• Astronomy at Arecibo Observatory
• Murray Lewis
• Arecibo Observatory 430-MHz Gregorian Receiver

This page is devoted to information on Supernova 1999gi in NGC 3184 . ... Information on the original web pages for many of these images can be found on the Supernova links web page. ... NGC 3184 is a fairly close Mag 10.3 galaxy, only about half as distant as the Virgo cluster. ... Seiichi Yoshida has a 1999gi page . Odd Trondal's 1999gi page . ... CfA image . ... 14.5 . ... Jean Marie Llapasset image . ... vsnet-alert 3805 ] SN 1999gi in NGC 3184 . vsnet-chat 2438 ] Host galaxy of SN1999gi . ...

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• Supernova Links
• Supernova 1999cl in M88
• Supernova 2002fk in NGC 1309

Astronotes Armagh Planetarium's Stellar Blog! ... As example you have only to look at the recent discovery of a supernova by Irish astronomer David Grennan . ... The last confirmed supernova in the Milky Way to be observed was in 1604 (known to history as Kepler ?s Star; it was bright enough to be seen in the daytime sky). €а Ever since then all supernovae examined by astronomers have been denizens of other galaxies. ... Tweets that mention Supernova spotted by Irish astronomer -- Topsy.com . ...

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• Where and When to See Comet PANSTARRS | Astronotes
• How do galaxies form? - New discovery from European Southern Observatory |
• Other Galaxies | Astronotes - Part 2

... Our hometown rag (the Boston Globe ) runs an occasional series of photo collections that highlight news stories called The Big Picture. ... I talked about this automatized computer vision problem without a training set and with no rules of learning, to a friend and the advice was ?don?t go further. ... to a computer program some images can be defined as boring and some as interesting, so there may be a way to be able to search for interesting data in the vast amount of images. 10-13-2008, 8:30 pm . ...

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• The AstroStat Slog Big Picture
• The AstroStat Slog STEREO
• The AstroStat Slog XRT

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Three sixth-form students from St Patrick's Grammar School, Armagh , used the Faulkes Telescope South in Australia in April to observe and measure HW Virginis , an unusual "binary" or double star system suspected to host one or two extrasolar planets orbiting the central stellar pair. ... Armagh Observatory and associated researchers hope to develop this work to look for further evidence of planet-hosting binary star...

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• Latest News
• annrep2004
• David Asher home page

... 2010 . ... The following images are mosaics obtained on 03 August 2010 at the National Solar Observatory/Dunn Solar Telescope with the Interferometric Bidimensional Spectrometer (IBIS). ... The final images are approximately 238 x 242 arcseconds, or 4 x 4 arcminutes, with a pixel scale of 0.0976 arcseconds per pixel. ... The images show a broad range of typical chromospheric structures, including sunspots, superpenumbra, plage, filaments, and quiet internetwork. ...

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• APOD: 2000 January 3 - Cas A Supernova Remnant in X Rays
• APOD: October 11, 1999 - Eta Carinae in X Rays
• New Moons of Uranus

... 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. ...

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... Star Clusters . ... Stars@ESO . ... By discovering the first double star where a pulsating Cepheid variable and another star pass in front of one another, an international team of astronomers has solved a decades-old mystery. ... This embarrassing discrepancy has been known since the 1960s. To resolve this mystery, astronomers needed to find a double star containing a Cepheid where the orbit happened to be seen edge-on from Earth. ... It contains a Cepheid variable star pulsating every 3.8 days. ...

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• ESO - Thesis Topic: Discovery and characterisation of Pre Main Sequence stars
• ESO - Newsletter December 2015
• A Family Portrait of the Alpha Centauri System | ESO

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 . ...

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• Recently Acquired Images of SL9
• Low Surface Brightness Galaxy Gallery
• Galaxy Gallery Page II

Observatories 1 --- | ... Mills Observatory . ... The observatory building . ... One of the conditions of the transfer was that the Observatory would move to a better site, so ROE moved from the (increasingly smoggy) City Centre to Blackford Hill, about 2 miles south. ... Rumour has it that the site (which is pretty close to being below sea level, a novel idea for an observatory) was chosen based partly on the sunshine records being kept by the town clerk in nearby Bexhill (Florida for the english). ...

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• Observatories - part 3
• A New Database of Observed Spectral Energy Distributions of Nearby Starburst
• Observatories - part 1

Most of these images were obtained by Mike Bessell, Michelle Buxton, Hwankyung Sung, Ralph Sutherland and Bob Watson at SSO using a 2Kx2K Site CCD behind a Nikon or Hasselblad lens or directly on the 1m telescope. A few images are from the Hubble Space Telescope. Some of the M42 images were obtained with the KPNO 1m and ESO NTT telescope. One image is a mosaic of IRAS images. ... Details of the CCD imaging program at MSSSO. ... antenna.jpg (53KB) . ... ngc6744.jpg (59KB) . ...

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• Dougal Mackey - CV
• Some Black Holes are Pink
• GSAOI Other Instrument Links Page

... Home Lectures Lecture Series 2015-2016 . ... Lecture Series 2014-2015 . ... Beyond New York City . ... The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the public. ... Amateur Astronomer Association is pleased to announce we will be offering select, limited reserved seating for current AAA members for the Friday, January 8, 2015 AAA Lecture entitled Robert Nemiroff ?2015 Astronomy Picture of the Day?. ...

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• Lecture Series 2013-2014 ? Amateur Astronomers Association of New York
• Charles Dana Discovery Center, Central Park ? Amateur Astronomers Association
• Other-Events ? Page 5 ? Amateur Astronomers Association of New York

... 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. ...

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• The M111 - "OnLine"
• Pictures From the CLUB
• A brief tour page 3

... Spacecraft . 29b. Satellites looking down . ... 29e. Explorers of distant space . ... The Hubble orbiting telescope. ... The Hubble telescope , in low Earth orbit, overcomes such limitations, in the visible range and in part of the UV. ... So fruitful was this observation that a second "deep field" exposure of such length, near the southern pole of the heavens, was recently conducted. ... Some satellites specialize in observing the Sun, such as the Japanese Yohkoh and NASA's SOHO . ...

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• The Sun -- History
• Lagrangian Points
• The Sun