... 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. ...

SAOtng supports multiple frame buffers, so that more than one image can be loaded simultaneously. ... Users of the old SAOimage program are used to having the frame size adjust itself as each new image is loaded. ... To specify autoconfigure of frame #1, use the -autoconfig switch or the SAOTNG_AUTOCONFIG environment variable. ... When a frame size is specified manually, auto-configuration is turned off so that new images also use the specified frame size. ... Disable/Enable Autoconfig of Frame #1 . ...

... The task also issues a number of housekeeping related messages and values and also writes several keywords to the EXPOSURE extension (the information is usually CCD-dependent and it is thus important that it is kept and propagated through the event file processing chain). ... Filter: the filter wheel position is derived from the position sensor potentiometer (housekeeping column F1122 contained in the main periodic housekeeping file PNPMH1 , HK mnemonic H_CE_FWSPOT). ...

To construct frequency distribution (histogram) of minor planets according to value of some element/ parameter/ function user should first select Elements item in menu bar and then Histogram in drop-down menu. ... User has possibility to save histogram or to print it using standard means. To save the file select File item in menu bar and then Save As... in drop-down menu. ... To print histogram select File item in menu bar and then take advantage of options Print Preview , Print Setup , Print . ...

... Because of the need to schedule observations as efficiently as possible, the order in which exposures are executed may be different from the order in which they appear in the observer's Phase II submission-unless an explicit special requirement dictates otherwise. ... Data files can then be associated with the corresponding exposure line in the Phase II proposal by comparing exposure information in the Phase II proposal with data file header keywords. ... Time_Per_Exposure . ...

... 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 TRACE images may be used without restrictions in publications of any kind. ... These two images, taken on 18 November 2000 at 15:54UT and 16:11UT, respectively, show such an event: the red circle in the image to the left shows a region where many loops are cooling, with bright loop tops (the intensity scales with the square root of the image to reduce the dynamic range). ... See also a collection of images related to the Sun, other cool stars, and solar-terrestrial effects . ... Images | ...

... 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. ...

... User Guide ] Task: uvflag Purpose: Flags or unflags uv data Categories: calibration, uv analysis UVFLAG is used to change flags corresponding to visibility data. Using the keywords select, line and edge one selects a portion of a uv-data file. ... Key: vis Standard keyword vis. ... Key: edge This keyword allows uvflag to work on the edges of spectral windows. ... Key: options One or more of 'noapply', 'none', 'brief', 'indicative', 'full', 'noquery', 'hms', 'decimal'. ...

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" . ...

... A number of parameters appear in the parameter area which correspond to the status of the package when the interface is created. These parameters can be changed by typing the new values in the field, or reading them from a previously saved session table. The option in the menu may be used to read a session file, as indicated in Figure reffig:xsave. The name of the currently loaded session is indicated in the first text field Session at the top of the parameter area in the Main window. ...

... Field size . Object name . ... Map size . ... Field size: the approximate size of the map in the Y direction. ... Galaxies: . ... Galaxies, which size exceeds some value depending on the field and map sizes, are displayed with their real positional angles and sizes by 25m isophote. ... In the "tools" fields there are links to the several famous AVO (Astrophysical Virtual Observatory) resources: NED and Simbad databases and DSS2 (Palomar Digitized Sky Survey) images of the corresponding sky area. ...

Next: Phenomenological Kick Velocity Up: Restrictions on the Scenario Previous: The COOC Criterion (Criterion . ... The results of testing and parameters without kick velocity are presented in the form of "topographical maps" (i.e. as isolines) of constant ``COOC'' criterion in the plane calculated separately for each of the binary species listed in Table  4 (Figures  16 - 20 ). The total COOC criterion calculated with equal weights is shown in Figure  21 . ...

User catalogs allow you enter positions for your objects into a file, to save time during an observing run. ... Before diving into the details, here is an example: # default coordinate system and object # (these are the standard defaults, so if you like them you can omit this line) CSys=FK5; Date =2000; RotType= Object ; RotAng=0 # some random objects # Name Pos1 (e.g. RA) Pos2 (e.g. Dec) Options in keyword-value format NGC6543 rot 90 ... Object Data . Defaults . Catalog Options . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Sequence of four video frames captured at 01:05 BST at Armagh Observatory on the night of the 24/25th July 2013, showing the onset, development and demise of the sprite. ... Unlike common lightning discharges, which often jump between clouds or between the clouds and the ground, sprites are associated with similarly powerful electrical fields that occur high above the clouds of the EarthтАЩs atmosphere. ...

OptInt PmWiki : Pm Wiki / Wiki Style Examples . Wiki styles | ... PmWiki uses WikiStyles for styling text with color and other attributes. PmWiki 2.0 introduced the ability to control the styling further and to even place styles on blocks. ... In addition, an author can define a style "shortcut" by using the define= property. For example, to define a style of %red% , one can use: . define=mystyle color=red% Here is some %mystyle% red text created using a style shortcut. ...

The virtual host code was completely rewritten in Apache 1.3 . ... In 1.3.13 and later that includes the IP address * . ... A _default_ vhost catches a request only if there is no other vhost with a matching IP address and a matching port number for the request. ... A _default_ vhost or the main_server is never matched for a request with an unknown or missing Host: header field if the client connected to an address (and port) which is used for name-based vhosts, e.g. , in a NameVirtualHost directive. ...

... IPACMAN V2.5 Test Plan (or more) . ... Anyway, results given hereafter are related to one plaform only (the one mentioned on the top). ... specific testcases The following testcases correspond to the minimum set of tests to be run on every new IPACMAN release (alpha, beta, final, .. ... 1/ START IPACMAN . ... Expected result . ... Verify IP: select an IP on disk and run Reports>verify IP . ... IP Diff: select two IPs on disk, and run Reports>IP Diff and check manually the results: verify the . ...

In Actor Prolog a resident is a special mechanism that helps processes to inspect state of other processes. A resident observes the state of a specified (target) process and if the state of the process changes (for instance, after message handling) it proves a specified predicate of the process. ... Work of the resident. ... Any change of the list of target processes or arguments of resident function results in activation of the resident and repeated collection of information in the target worlds. ...