Astronomy Discussion Forums . Forums: . ... Discussion Forums . ... Just A Little Background On Dick . Forum List | ... Post Message | ... Posted by Harvey on November 25, 2002 21:07:26 UTC . ... He knows a lot of math, probably more than anyone on this forum. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... 2000 November 9 . The Cosmic X-Ray Background . ... Notably, the faint sources tend to be green and blue, showing x-ray characteristics of huge amounts of material falling into massive black holes in very distant galaxies. ... The XMM-Newton results add to the growing consensus that they do and that, from across the universe , x-rays produced as matter feeds these black holes account for the cosmic x-ray background. ... About APOD | ...

... rgsregions defines and constructs the various RGS event-selection regions, and adds them to the source list (see rgssources ). ... Image regions and the background region refer to the plane of dispersion versus cross-dispersion ( image plane ) and select events based on their spatial coordinates. ... The order regions refer to the plane of dispersion versus calibrated pulse-height ( energy plane ) and select events from a specific astrophysical source within a particular reflection order. ...

... In the above example, the second region uses the global coordinate system (PHYSICAL by default). ... Supported systems include: name description ---- ----------- PHYSICAL pixel coords of original file using LTM/LTV IMAGE pixel coords of current file FK4, B1950 sky coordinate systems FK5, J2000 sky coordinate systems GALACTIC sky coordinate systems ECLIPTIC sky coordinate systems ICRS currently same as J2000 LINEAR linear wcs as defined in file In addition, two mosaic coordinate ...

The broad background peak of activity of this year's Leonid meteor shower is expected to occur around dawn on the 17th November. ... It is anticipated that rates will be up to about 50 meteors per hour for a few hours around peak activity, under ideal conditions. ... According to Armagh Observatory astronomer, David Asher, and co-workers, there will be two additional peaks of activity after the broad stream peak. ... Leonid Meteor Pages . The unexpected 2004 Leonid meteor shower - PDF Format . ...

Next: 1--Dimensional Images (``Spectra'') Up: 2--Dimensional Images Previous: Patterns . ... CREATE/RAMP . produces square two--dimensional images of user--specified dimensions, with mean flux per pixel of 100 units, of user--specified slope of the plane, and with the plane itself sloping at a position angle. ... CREATE/WAVE . ... Again, the image is two--dimensional, of user--specified dimensions, and with user--specified amplitude and period. ... The mean flux per period is 0 units. ...

With the release of STSDAS 3.0, support for thermal calculations was added to synphot with the new task thermback . ... For WFC3, thermback calculates the thermal background, but only does so at the default temperatures within the instrument (parameterized keywords do not yet apply to WFC3). Additional keywords, including opaque but thermally emitting components of the OTA, were added, and all keywords except the detector keywords became parameterizable for temperature. ...

... As an obligatory preparing for the application a short report of National Olympiad of the current year has to be presented by the applicating team (see the necessary actual points of the report, its form and examples in the Supplementary Instructions N 10 ). ... For the countries, starting their activity at the International Astronomy Olympiad (see the Supplementary Instructions N 3 ), the requirements for the short report are not strong. ... The (age) groups are defined by rules 4.5.2-4., i.e.: . ...

... This is a preliminary summary of the event on November 24, 1996, considered during the INTERBALL Workshop in Kiljavanranta, Finland, February 1998. ... Pronounced plasma sheet thinning (Bz decrease) . ... Particle burst observed inside the Polar Cap and in tail lobes . A short burst of particles detected by the Auroral Probe particle detectors during the Polar Cap crossing at 21:45 UT, almost simultaneously with the Tail Probe detectors registration of the particle burst inside the North Lobe. ...

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 Cosmic X-Ray Background . ... With brilliant Venus above the western horizon at sunset and Jupiter and Saturn high in the east by early evening, November's night sky is filled with bright planets. October's sky featured bright planets as well and, triggered by the active Sun, some lovely auroral displays. ... Spanning 40 degrees across the sky, the nebula is so large and faint it is easily lost in the din of a bright and complex background. ... Double Asteroid 90 Antiope . ...

This module provides for the generation of Expires HTTP headers according to user-specified criteria. ... This module controls the setting of the Expires HTTP header in server responses. The expiration date can set to be relative to either the time the source file was last modified, or to the time of the client access. ... ExpiresByType . ExpiresDefault . The ExpiresDefault and ExpiresByType directives can also be defined in a more readable syntax of the form: . ... Module: mod_expires . ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... Rocket Systems . Flights Chronology . ... News . Science news . ... At the launch site the pre-launch processing and launch operations were supervised by the State Commission for manned systems flight tests and the Technical Management for flight tests of manned space systems, headed by the RSC Energia President and General Designer V.A. Lopota. ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

... Our Solar System is a stellar-planetary unit consisting of the Sun ; the nine planets and their satellites; the asteroids, comets, and meteoroids; and interplanetary dust and gas. The dimensions of this system are specified in terms of the mean distance from the Earth to the Sun, called the astronomical unit (AU). ... The boundary between the solar system and interstellar space - called the heliopause - is estimated to occur somewhere beyond 120 AU. ... Earth . ...

... Triangle Service Station, Seaford, Virginia (Summer 1954) York Air Conditioner, Warwick, Virginia (Summer 1955) Colonial National Park, Yorktown, Virginia (Summer 1956) NACA Langley Aeronautical Laboratory, Hampton, Virginia Math Aid, Structural Dynamic Section, High Temperature Branch , Pilotless Aircraft Research Division (1957-1958) Research Engineer , Analysis and Computation Branch , Structures Research Division , ... B. Johnson Space Center, Houston, TX. ...

... PmWiki . Summary: PmWiki group header. ... Summary: Styling text for colour and other attributes:) See also Wiki Styles Plus and Wiki style colors . ... PmWiki 2.0 introduced the ability to control the styling further and to even place styles on blocks. ... This text is %color=red% red, %color=blue% blue, %% and normal (black). ... 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. ... Group . ...

There are two modes to specify the time interval of ephemeris. ... This mode is applicable if the date of opposition belongs to the basic interval of 16 months from November of the year preceding to the title one to February of the subsequent one. In this case the ephemeris is centered at the nearest standard moment (its Julian day minus 0.5 is exactly divisible by 10) which precedes or coincides with the moment of opposition of minor planet in specified year. ...

... User Portal . ... Science Users Information > Science Publications > Archive of the ESO Enews > ESO-Enews #7: November 2007 . ... ESO User Portal opens . ... Principal Investigators and registrants of the Science Archive Facility have been sent an e-mail welcoming them to the User Portal and providing them with a new, single, user-manageable account. Users expecting data deliveries (pre-imaging data or archive requests) must activate their User Portal accounts before these deliveries can be made! ...

. This diagram shows a small table with three transparent cells and illustrates how their final background is determined. The table consists of two rows. Four (labeled) cells lie in the first row, but the second cell spans the first and second row. The first, third, and fourth cells of the second row are "empty". Each non-empty cell has a red background and a double black border. Each empty cell has the table's background color (specified as #ff0) as its own. Return to image.