... Packet Format . ... The TCC broadcasts UDP packets containing position information. ... Packet Header . ... int4 . ... double . ... pos, vel double . ... pos, vel, time double . ... See the TCC Message Keywords Dictionary for full definitions of most items in the "data" section of the packet. pos, vel double is a structure containing two doubles: "pos" and "vel"; it contains the same information as the TCC's "coordinates" (p,v,t triplets), but with time given by the "TAIDate" entry in the packet. ...

Astronomy Picture of the Day . ... Credit: Louis Strous ( LMSAL ), SOHO - MDI Consortium, ESA , NASA Explanation: The Sun rotates on its axis about once every 27 days. ... Just follow the sunspots . ... It shows the Sun's visible surface for most days of August 1999 so that the same sunspots appear many times as the solar rotation carries them across the face of the Sun . ... Publications with keywords: Sun - solar rotation - sunspot . Publications with words: Sun - solar rotation - sunspot . ...

As an obligatory preparing for the application to participate in the IAO a short report of National Olympiad of the current year with a set of all problems used on the Olympiad has to be presented by the applicating team. ... The final minutes (protocols written in Latin or Cyrillic in form of tables) of the Olympiad (evaluating of solutions of the students participated in the last stage of the Olympiad) should be included as well. ... Historical data of the National Astronomy Olympiad: . ...

... Classes . ... Nebula Class Reference . ... getInfoString (const StelCore *core, const InfoStringGroup &flags) const . ... getCloseViewFov (const StelCore *core=NULL) const . ... getVMagnitude (const StelCore *core, bool withExtinction=false) const . ... getSelectPriority (const StelCore *core) const . ... getEquinoxEquatorialPos (const StelCore *core) const . ... getJ2000GalacticPos (const StelCore *core) const . ... getPositionInfoString (const StelCore *core, const InfoStringGroup &flags) const . ...

... For X SSet denote by skn (X ) the minimal simplicial subset of X containing all simplices of X of degree n and less (put sk -1 (X ) = ). n X )N · Prove that skn (X ) is isomorphic to the colimit of the following functor F : ( Here (n )N X is the subcategory of the category of elements X SSet. of X (see lectures) containing all non-degenerate simplices of degree n and less, and F sends a non-degenerate simplex k X to k SSet. ... Prove that |X | ... Let A[-] : Set Mo dA denote the free A-module...

... Following a flare on 9 July '96, a solar quake on the solar surface was observed for the first time. It contained 40,000 times the energy released in the great earthquake that devastated San Francisco in 1906. In an hour, the waves traveled a distance ten times that of the Earth's diameter. The waves accelerated from 22,000 miles per hour to 250,000 miles per hour as they travelled outwards and disappeared into the photosphere. A solar-quake following a large flare . ...

... 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. ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . ... Following the Martian Coastline . ... It seems scientists and laypeople alike have wondered for quite a long time whether or not water exists on Mars. ... A second reason we should determine the sites of ancient Martian seas is that if water once existed on Mars, it is possible that conditions for life obtained on the planet in the past and possibly even persist into the present. ...

EPHEMERIDES OF MINOR PLANETS . The yearbook "Ephemerides of minor planets" (published since 1948) contains information on orbital elements of numbered minor planets and the circumstances of their observations during the best observation periods. ... orbital elements of 430405 minor planets, numbered as of March 5, 2015 and dates of their oppositions in 2016; . ... opposition ephemerides of minor planets; . ... information on the "Updated Ephemerides of Minor Planets" service; . ...

... 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. ...

... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . Sun . ... The Magazine . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... What would a bucketful of our Sun contain? ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... Let Carol Vorderman help your child succeed in Science. Science Made Easy is one of Carol Vorderman's series of workbooks packed with notes and tips to make learning about Science easy and fun! ... Each title contains a progress chart so your child can keep track of all the exercises they have completed and parents' notes explain what children need to know at each stage and what's being covered in the curriculum so you can support your child. ... Age: over 3 years old . ...

... 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". ...

... The database contains data of magnetic field observations obtained in the following observatories: Central astronomical observatory ( GAO ) , Crimean astrophysical observatory ( KrAO ) , Institute of terrestrial magnetism and radiowave propagation of Siberian division of RAS (Irkutsk) ( SibIZMIR ) , Institute of terrestrial magnetism and radiowave propagation (Troitsk) ( IZMIRAN ) , Shemacha astrophysical observatory of Azerbajanian AS ( ... GAO IZMIRAN SibIZMIR KrAO UsAO UrAO ShAO . ...

... It provides for logging of the requests made to the server using the Common Logfile Format. This module has been replaced by mod_log_config in Apache 1.2 The log file contains a separate line for each request. A line is composed of several tokens separated by spaces: host ident authuser date request status bytes If a token does not have a value then it is represented by a hyphen (-). ... day = 2*digit . ... TransferLog . ... Context: server config, virtual host . ... Module: mod_log_common . ...

Computer Ephemeris. Precession/nutation matrix. Explanations. Each row contains for the date specified at 0 h of Time Dynamical Terrestrial nine elements of equatorial precession/nutation matrix minus unity matrix multiplied on 10 8 . This matrix is to be used for coordinate transformation of equatorial coordinates between mean equatror and equinox J2000.0 and real equator and equinox of date. ... This is the matrix for transformation from J2000.0 to date. ...

... T he ADC 's data holdings contain the following item(s) that match the query entered - . Fill in Any or All Search Fields Below . ... J/A+AS/126/281 Solar disk spectrum (660-1175A) (Curdt+ 1997) . ... J/A+AS/103/57 Spectral coefficients of emission and absorption (MIHAJLOV 1994) . ... J/A+AS/122/51 B to G stars calibration in Geneva photometry (Kunzli+, 1997) . ... J/A+AS/113/237 Ultraviolet Spectrum of the Sun (Samain, 1995) . ... J/A+AS/141/141 8500-8750{AA} high resolution spectroscopy. ...

The section "Interstellar Radio Messages" contains only abstracts and articles which were written about IRE's works. It's a reason why, for example, such classical subject as Arecibo Message does not present here. Some texts were corrected by our American colleagues in order to convert our local "Russian" English into the true English. ... And at the same time ask an indulgence at readers for this and some following texts, which were not "re-translated". Alexander L. Zaitsev . ...

Following acceptable use statement forms basic principles of Russian Space Science Internet activity. ... Usage of the Russian Space Science Internet to support Russian space research and associated technical activities at non-profit institutions and centres of resarch and science is acceptable. ... All user requests for Russian Space Science Internet connectivity must be validated and supported by Network Coordination Centre at Space Research Institute RAS. ...

... Radio Astronomy . ... ASRAS Board Members . ... To see the most up to date news and events happening with ASRAS log in with your user name and password and then click on the Activities page. ... Messier Marathon (Member Observing) CANCELLED Saturday, April 9, 2016 9:00 PM Location:Farash Center Ionia NY . ... ASRAS Members meeting - Friday May 6 at Farash Center - Ionia NY . ... ASRAS Board members meeting - monday May 9 @ Farash Center Monday, May 9, 2016 7:00 PM Location:Farash Center Ionia NY . ...