... 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 . ...

... AAC Explanation: The Great Comet of 1997 is now brighter than the Great Comet of 1996 ever was. ... Yet Comet Hale-Bopp is still about two weeks away from maximum light . Comet Hale-Bopp is now well north of the plane of the Earth's orbit and on the same side of the sky as the Sun . ... The above picture of Comet Hale-Bopp was taken last week in Italy. ... Tomorrow's picture: Comet Hale-Bopp's DevelopingTails . ... Publications with words: Comet Hale-Bopp . ... Hale Bopp: The Great Comet of 1997 . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. March 13, 1997 . Hale-Bopp Brighest Comet This Decade . ... Explanation : The Great Comet of 1997 is now brighter than the Great Comet of 1996 ever was. In fact, it is brighter than almost every star in the sky. Yet Comet Hale-Bopp is still about two weeks away from maximum light . ... About APOD > . ...

spaceweb@oulu.fi - last update: 22 September 1998, 1640 UT (RR) . Great magnetic storm are often related with auroras of high visual brightness that are seen at exceptionally low latitudes. Especially, two types of high altitude red auroras are seen: . type-A red aurora . ... Type A red aurora can be seen only during the main phase of the strongest magnetic storms. ... Feb 10, 1681 . ... Mar 17, 1716 . ... Sept 15, 1839 . ... Aug 28, 1859 . ... Bombay, Mexico, Athens (zenith) . ... Res. ...

... They worked out that first magnitude was on average 100 times brighter than the 6th magnitude star. ... This formed an equation of apparent magnitude Mv which is: Mv = -2.5 log f + constant were f is the flux of that star f = ( counts/ exposure) The images that we worked on were taken by the Polar Bear Telescope. ... One of these being that it will be combined with standard stars, which will be used to identify the area of stars and to also help identify other stars within the image. ...

... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

... omdetect (omdetect-5.14.2) [?? Meta Index / Home Page / Source Flagging Algorithms Since the object producing a read-out streak may lie outside the image, another algorithm is also used by omdetect. ... nMin = int( 0.6 (ny + 1)) where ny is the number of rows in the image (image height) . ... Loop through all the columns of the image . ... n4 = count(image(i0, :) image(i0 + 1, :) ) Count the number of pixels along column i0 that have a greater value than their neighbour in column i0 + 1 . ...

Voyager 2 image of Neptune showing the Great Dark Spot and associated bright clouds and a bright Scooter to the lower left. ... Central Latitude/Longitude (deg): N/A . ... Instrument: Narrow Angle Vidicon Camera . ... Instrument Field of View (deg): .424 x .424 . ... Illumination Incidence Angle (deg): N/A . Phase Angle (deg): N/A . ... Surface Emission Angle (deg): N/A . ... NASA Image ID number: P-34632 . ... Code 633, NASA Goddard Space Flight Center . Greenbelt, MD 20771, USA . ...

This page is devoted to information on Supernova 1998T in NGC 3690 . Information on the original web pages for many of these images can be found on the Supernova links web page. ... According to http://www.cv.nrao.edu/~jhibbard/a299/a299.html and http://www.ifa.hawaii.edu/postdocs/vacca/images/arp299buv.html it follows that Arp 299 (aka Mrk 171) is made up of IC 694 (UGC 646471) on the east and NGC 3690 (H-247-1) (UGC 646472) on the west. ... Other images of 1998T . Ayabe image . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Space Flight . ... Monthly Sky Notes . December . ... Would anyone turn down a good firework show in December? ... The Geminids meteor shower should then emerge in all its glory in the east in the constellation GeminiтАЩs patch of sky on the evening of the 13 th and early morning of the 14 th of December, with the last shooting stars visible up until the 18 th December and approximately one meteor per hour on display at that stage. ...

GALAXIES cenA .tiff 40 Bright Radio Galaxy M31.tiff Nikon Andromeda Galaxy (note HII regions in spiral arms) ngc6744.tiff 40 NGC 6744 a face-on spiral clouds_20d.tiff H'blad The Magellanic Clouds our nearest neighbours Lmc_7.tiff Nikon The Large Magellanic Clouds Lmc_zoom.tiff Nikon Detail of previous image smc_7.tiff Nikon The Small Magellanic Clouds smc-zoom.tiff Nikon Detail of previous image 30dor_40_BVR.tiff 40 The 30 Dor ... B [OIII] Halpha trifid.tiff 40" The Trifid Nebula. ...

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Orion. Orion is the most remarkable constellation of the sky. ... In its bright stars arrangement the hunter’s figure can be seen to the south - east of which the blue Sirius is shining and to the north - west - a red Aldebaran. ... Rigel ( b of Orion) is more bright then Betelgaise. ... The most interesting object in the constellation is the Great Nebula Orion (M 42), lying below the belt of three stars and remote from us as far as about 1000 light years. ...

... As if great books about probability and information theory for statisticians and engineers exist, I believe there are great statistical physics books for physicists. ... In this regard, I thought the lecture note can be useful. [arxiv:physics.data-an:0808.0012] . ... Tags: Bayes Theorem , Boltzmann , Carnot , Entropy , Gibbs paradox , Information , laws of thermodynamics , lecture note , maximum likelihood , probability , Shannon , statistical physics , Tchebyshev inequality , thermodynamics . ...

... The Galactic low-mass X-ray binary GS 2023+338 was discovered during the burst on May 22, 1989 with the Japanise satellite Ginga (aka Galaxy). The flux reached 17 crabs (this unit of flux measurement is an bright X-ray source, Crab Nebula) at 10-35 keV. ... No other radio telescope worldwide carried out multi-frequency measurements. ... Upon 14 days the radio flux fell below the detection level at the RATAN-600 in relation to the decrease of the X-ray flux. ...

Next: Observations and data reduction Up: On the metallicities of Previous: On the metallicities of . Since the discovery of low metallicity gas in H II regions of Blue Compact Galaxies (BCGs) by Searle & Sargent (1972), a debate lasting for decades on possible existence of local truly young galaxies is still continuing. ... In particular, we reobserved two BCGs presented in the K? list - UM 133 and UM 382. ... UM 133 . UM 382 . ... 3868 [Ne III] .. ... 1.000 0.017 . ... 0.017 0.001 . ...

... A major part of my PhD thesis consisted of distance measurements to early-type galaxies in the Hydra and Centaurus clusters ( Mieske et al. 2005 , see the two figures below). ... The results of our distance measurements implied a significant peculiar velocity of the Hydra cluster , and a negligible peculiar velocity for Centaurus . This finding is consistent with a massive Great Attractor (~10^16 M_sun) at 45-50 Mpc distance, closer in projection to Hydra than to Centaurus . ...

ATNF Annual Report 2000 (submitted) . ... One of the first products is the HIPASS {\it Bright Galaxy Catalogue}, which is a catalogue of the 1000 apparently brightest HI galaxies in the southern hemisphere. ... In Figure 1 we show the spatial distribution of the brightest HIPASS galaxies. ... Figure 4 shows the velocity distribution of the 1000 brightest HIPASS galaxies (orange) compared to the 1000 brightest optical galaxies (selected from the Lyon/Meudon Extragalactic Database using blue magnitude). ...

20-23 September 2016, St.Petersburg, Russia . ... The 13th European VLBI Network Symposium and Users Meeting will be held in Saint Petersburg ? the second largest city in Russia and one of the most beautiful cities in the world. ... On the Official city tourist portal of St.Petersburg you will find essential travel information about the city, attractions and events, and get the answers on any question helping you to plan your trip to Saint Petersburg. ...