... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

... Tonight's Sky . ... Sky this Month . ... Star Atlas . ... stars . ... The Sky This Week: April 1 - 10 . ... Observing springtime deep-sky objects with a large telescope . ... Why do some stars appear to flash a variety of different colors when you look at them through a telescope? ... So, Earthт??s atmosphere will bend some colors from especially bright stars more so than others, which makes the source look like itт??s flashing colors. Get instant access to subscriber content on Astronomy.com! ...

... sed 's/-t=//'` shift continue;; -b=*) transformbasename=`echo $1 | sed 's/-b=//'` shift continue ;; *) if [ x $ src = x ] then src =$1 else # this colon is to work around a 386BSD /bin/sh bug : dst =$1 fi shift continue ;; esac done if [ x $ src = x ] then echo $0: no input file specified 2 exit 1 else : fi if [ x $dir_arg != x ]; then dst =$ src src = if [ -d $ ... IFS='%' set - `echo "$dstdir" | ...

... ISS: The International Space Station is now making another set of excellent early evening passes over Ireland. ... 2.€а Fantastic Galactic Imagery and a Celestial Extravaganza at the BT Young Scientist and Technology Exhibition 2010, RDS, Dublin. €аIn its 46th year the BT Young Scientist & Technology Exhibition is much more than a competition; it is an unforgettable experience of a lifetime for the students who take part. ... Clear Skies, . ...

Chapter 2: Header Keyword Definitions . At the end of the header file, certain keywords and phrases will appear as a warning of an anomalous situation or to flag or emphasize a particular condition (e.g., slewing). ... Target acquisition failure) . ... All observations following the failure and preceding the next baseline guide star acquisition will contain this keyword. ... Each observation until the next baseline guide star acquisition will have this keyword appended to the header file. ...

... Credit: Shay Stephens Explanation: Is the Moon larger when near the horizon? No -- as shown above, the Moon appears to be very nearly the same size no matter its location on the sky. ... In the above time-lapse sequence taken near the end of last year, the Moon was briefly re-imaged every 2.5 minutes, with the last exposure of longer duration to bring up a magnificent panorama of the city of Seattle . ... Publications with keywords: Moon - angular size . ... Apogee Moon, Perigee Moon . ...

... Column specifications may only appear in the body of a table specification. There is no limit to the number of column specifications which may appear in the table body. ... column column-dimensions column-name data-type label units optional-expression < ... column item specifications ... > . ... column is the column specification keyword. ... It has type string-expression (which may be a literal string). column-dimensions , denotes the dimensions of the column's cells.. ...

Probing new worlds" Images are listed in the order in which they appear on the contact sheet (reading right to left). ... 2763-8.tif |19.2 |CSIRO's |The location of both the solar |CSIRO's Dover Heights field | ... Photo: CSIRO | ... NOT FOR USE. ... image. ... MB |galaxy |from the optical image |information for the two images | ... CenA_AAT7.tif) and radio image |used in the composite. | ... Large Array radio telescope of the |courtesy of NRAO / AUI / NSF | ... CSIRO's Parkes radio telescope. | ...

... Therefore, the menu location # "Blur/Blur" specifies an item name of "Blur" in a submenu entitled # "Blur". ... It is convention to only use the `alt' and `shift' key modifiers for # plug-ins. ... The main application will not use the ` alt ' # or ` shift ' key modifiers. plug-in blur Blur / Blur Alt Key B Alt +B plug-in gauss Blur /Gaussian Blur Shift Alt Key B Shft+ Alt +B plug-in gauss_rle Blur /Gaussian Blur RLE plug-in gauss_recurse Blur /Gaussian ...

The sections <Directory> , <Location> and <Files> can contain directives which only apply to specified directories, URLs or files respectively. Also htaccess files can be used inside a directory to apply directives to that directory. ... The order of merging is: . ... If multiple <Directory> sections apply to the same directory they are processed in the configuration file order. ... Using the options in question is only possible inside a <Directory> section (or a .htaccess file). ...

Astronomy Discussion Forums . ... Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... New Model: How Do The Sun And Moon Appear To Move Across The Sky . ... Post Message | ... focused on the Sun and the Moon as they appear from the given location of the Earth surface: . ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...

... SGML . The text/html content type . In this section, we begin the specification of HTML 4.0, starting with the contract between authors, documents, users, and user agents. ... These recommendations are not normative and conformance with this specification does not depend on their realization. ... An HTML document is an SGML document that meets the constraints of this specification. ... A user is a person who interacts with a user agent to view, hear, or otherwise use a rendered HTML document. ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... ISS Russian Segment . ... Bus Module . ... Module Poisk as part of the ISS RS . ... After MRM2 integration into the Russian Segment, equipment included into the payload package of the module began to be used for experiments under a long-term program of scientific and applied research. ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

... Next, the screen displays "Press 0 to align or Mode for Menu." Press "0" if you wish to begin Automatic alignment (or Easy Align, depending on your telescope model), or press Mode if you wish to choose a manual alignment method ("Automatic Alignment" displays, and you can press MODE to go through the menu to find other alignments). ... Note: If you press the "?" key while "Ctr Brightest Star" displays, the alignment star that AutoStar has chosen will display. ... Alignment successful" displays. ...

RUSSIAN PEREPLET . Culture, Science, and Education Portal . Science Space Culture General Discussion Scientific Discussion Seminars . News: The best of Russian Science and Technology . ... MASTER Team Science Release: Discovery of the Black Hole Ergosphere? ... The International Conference "The International Conference" . ... MASTER is the first russian asteroid factory . ... New Russian "Volga" . ... MASTER - is the first russian robotic telescope for observations Gamma-Ray Bursts . ...

The Many Streams of the Magellanic Stream . ... As a part of the ongoing GALFA survey we have obtained an H I image of a region located at the tip of the Magellanic Stream. ... Figure 1 shows the velocity field of the tip of the Stream. ... Comparison with numerical simulations by Connors et al. (2006) suggests that a 3-way splitting of the main Stream filament may have taken place due to gravitational interactions between the SMC, the LMC, and the Galaxy. ... 2006) . ...

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Travel to E-ELT Armazones . ... ESO . ... Survey Telescopes . ... Galaxies . ... Star Clusters . ... Stars@ESO . ... ESO Science Newsletter . ... These two optical images from the Anglo-Australian Telescope in Australia show the Circinus galaxy before (February 1995) and after (March 1996) the supernova explosion of SN 1996cr was visible. ... Circinus Galaxy , SN 1996cr . ...

Umbriel . Uranus II . ... It is about the same size as Ariel and has about the same density. The surface appears to be old with large craters and does not change much from one location to another. ... Orbital period (days) . ... Visual geometric albedo . ... This image is a polar stereographic projection of the southern hemisphere of Umbriel. ... Dark regions are represented as red and bright regions are represented as blue. The two white regions are bright ejecta from two fresh craters. ...

... However, to avoid excessive central obscuration, a conical baffle is necessary in addition to the usual primary and secondary baffles. ... At that time, it was complete except several outside ribs remained to be attached and the upper and lower edges needed to be chamferred. ... The cone was measured at four equally spaced locations very near its upper and lower edge (Table 3). ... A tape measure was used to measure four diameters of the baffle at its upper and lower edges (Table 4). ...