... champ name : Source ID in the format explained in the Definitions section. ra : RA in decimal degrees. ... pos_error : Source count extraction radius in arcseconds. netB : net counts in B-band. See Definitions section. error_netB : error of net counts in B-band. see Definitions section. netS : S-band net counts, defined analogously to netB . ... See Definitions section. C21 : X-ray color. ... C32 : X-ray color. See Definitions section. rateB : B-band count rate in ksec. ...

... 314, 2004 F. Ochsenbein, M. Al len, and D. Egret, eds. Chandra FITS Dictionary S. Winkelman, A. Rots, K. Michaud, S. Blecksmith Chandra X-Ray Center/Smithsonian Astrophysical Observatory Abstract. ... We have collected the complete body of FITS keywords, as used in Chandra data products, into a dictionary database that provides easy access to their use and meaning. ... A list of filetypes using the keyword is also returned. ... A filetype is composed of one or more Header-Data Units (HDU). ...

In order to calculate the line profile of a given absorption line for atomic species Z with a wavelength LAMBDA (in Angstroms) and a microturbulent velocity VT (in km/s). ... mode . ... 1) The input model may contain more than one model (i.e. it may be an entire grid of models). Spectrum will cycle through this grid NMOD times, omitting NSKIP-1 models from the . ... However, the input data following MODE must be repeated NMOD times in order to obtain equivalent results for each model in the grid. ...

. Eng Rus . Main . Team . Observational . programs . Results . Publications . Presentations at . conferences . Holding conferences: . GRB mini-workshop 2006 . GRB workshop 2009 . 30"x30" B, V, Rc and Ic images of the GRB 000926 host galaxy field. The position of the optical transient (Fynbo et al., 2001, A , 373, 796) is marked off by the white circles ( radius is 0".5 according to astrometrical error) . Design ts@sao.ru . Last update: 15.02.2014 .

... This API (Application Programming Interface) document has pages corresponding to the items in the navigation bar, described as follows. The Overview page is the front page of this API document and provides a list of all packages with a summary for each. ... Each package has a page that contains a list of its classes and interfaces, with a summary for each. ... Each of these pages has three sections consisting of a class/interface description, summary tables, and detailed member descriptions: . ...

... Bojan Nikolic web pages (r. 329) . Out-Of-Focus (OOF) Holography . ... The architecture of the OOF data reduction software can be summarised in following points: . ... A well defined set of external libraries is used and generally newer versions of these libraries are adopted quickly after release . ... Routines for simulating OOF data-sets . ... OOF ? ... Description of the OOF software architecture . ... OOF Reduction Software . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Space Flight . ... Some 13.7 billion years ago, a mere millionth of a second after the Big Bang, the first hydrogen and helium nuclei condensed out of a hot, dense soup of quarks and gluons. ... In the very last few kilometres some of the light was scattered by a myriad of water droplets (containing hydrogen nuclei which had existed almost since the Big Bang) slowly descending through the air following a rainshower. ...

... Deriving the sine or cosine of an arbitrary angle takes a bit more math than is covered here. ... Note first of all that a right-angled triangle contains two angles. ... Because the side opposite to A is the one adjacent to (90њ- A), it follows that the sine of one angle is the cosine of the other, and vice versa: . ... Consider the triangle PQR (drawing) with all three angles equal to 60њ. ... If we want the angle A to grow in equal steps of 15 o , we still need the sine and cosine of 15њ and 75њ. ...

Sample data files: The files data.1 through data.6 contain tables of numbers. Only data.5 has two columns; the other files have one column. The file data.5 contains `complex data' with the first column containing the real parts and the second column containing the imaginary. In sm, you can read data into the program by using the following statements: data datafilename read {y 1} The first line tells sm that the new data will be read from a file named `datafilename'. ...

S.Duzhin COMBINATORICS Lecture 6: Composition of combinatorial species Definition. Let F and G be two combinatorial species such that G[;] = ; (there are no G-structures on the empty set). ... Unlike the two previously introduced operations on species, partitional composition is literally compatible with only one generating series F (x). ... Recurrent points form several cycles, while non-recurrent ones form several trees flowing into these cycles. ...

... milky way . ... The Milky Way contains at least 100 billion planets according to survey . ... This artist's illustration gives an impression of how common planets are around the stars in the Milky Way. ... Our Milky Way Galaxy contains a minimum of 100 billion planets according to a detailed statistical study based on the detection of three extrasolar planets by an observational technique called microlensing. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

... index.php (1) | bbclone/ | ... To do you can use the following sample and point your browser to it. <?php define("_BBC_PAGE_NAME", "Test"); define("_BBCLONE_DIR", "bbclone/"); define("COUNTER", _BBCLONE_DIR."mark_page.php"); if (is_readable(COUNTER)) include_once(COUNTER); ?> ... Create the file "count.php" and add the following: <?php define("_BBCLONE_DIR", "/the/path/that/leads/to/bbclone/"); define("COUNTER", _BBCLONE_DIR."mark_page.php"); if (is_readable(COUNTER)) include_once(COUNTER); ?> ...

... 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. ...

... The words are numbered according to the reference mentioned above. ... 59 WORD wSecond ; // 0 .. 59 satellite tracking start time (GMT) float fStep ; // reserved WORD wMass ; // reserved BYTE reserved [12] ; // reserved WORD wExtraBytes ; // reserved } TRAJECTORYHEADER ; NOTE: the satellite tracking start time is a hardware operating start time to follow satellite. typedef struct { // ephemeris at satellite tracking start time double time ; // Epoch time (yyddd.ddddddddd)...

... All angular values are expressed in degrees. ... But those who have the facilities for high-speed photometry could try to observe these phenomena. h m ° ° ° ° 2016 April 1 18 51.0 84.9 57.4 345 20 168378 1997 ET30; 17.8 ; 1.7 km; 7.2; 0.47s 18 58.0 67.3 45.6 325 26 U2 027489793 ; 10.6;14h06m06.171s;-12°01'21.53 19 05.0 49.6 38.1 307 22 2016 April 10 22 10.4 106.6 -31.2 311 75 297274 1996 SK; 20.3; 1.7 km; ...

Astronomy Picture of the Day . ... The picture shows a very young double star located about 450 light-years away toward the constellation of Taurus. ... M83: A Barred Spiral Galaxy . ... M83 is a member of the Centaurus group of galaxies, a nearby group dominated by the massive galaxy Centaurus A. It takes light about 15 million years to reach us from M83. ... Bright Comet SOHO . ... Discovered this month with an orbiting solar observatory, bright Comet SOHO has now emerged from the Sun's glare. ...

... Indeed, one alteration of orbits can be the outright ejection of a planet. When several big planets are orbiting a star under each other's influence, the system is inherently unstable. ... We know of no good reason why the smallest objects with fusion should have the same mass as the smallest objects that can form by themselves. ... 6) Mission Definition . ... I don't think this mission is impossible, and will suggest a definition in a future article in Mercury. ... Good luck! . ...

... Ham packet radio system including: . ... control computer RSC 2. dedicated software monitoring generation of probing pulses in onboard transceiver in radio beacon mode; . ground receiving network of ham radio packet communication to record probing pulses of onboard radio beacon; . ... Generation of onboard radio beacon probing pulses as time marks to ground receiving network (including ham radio receivers of USW) and transmission of the measurement results throughout Internet network. ...

THE 75th NAME-LIST OF VARIABLE STARS. ... The 75th Name-List consists of two tables. ... the literature, taken from positional catalogues, including USNO A1.0/A2.0 and GSC, or determined by the authors); the range of variability (sometimes the column Min gives, in parentheses, the amplitude of light variation; the symbol ( means that the star , in minimum light, becomes fainter, than the magnitude indicated); and the system of magnitudes used ( P are photographic ...

... Limit of star magnitude. If you want to obtain best results, you should use reference stars not more dimly than limiting star magnitude of your telescope. Limiting star magnitude depends on time of an exposition also.) This value should be set as " maximum of star magnitude " in a dialog box " Extraction from catalogue". To find darkest stars in the frame, make the following: . ... Two star magnitudes (m1, m2 in two photometric systems) will be outputted in the window "Information". ...