... It may be added, subtracted, divided or multiplied in any way appropriate for ordinary numbers. A mathematical relationship involving known numbers (like 25 or 40) and unknown ones (like x ) is known as an equation . ... To get a solution, one must replace the given equation (or equations) with others, containing the same information but cleaner in appearance. ... If you have an equation and modify both its sides in exactly the same way , what you get is also a valid equation. ...

Astro Space Center RadioAstron Newsletter Number 17 October 26, 2012 ====================== The process to select projects for the open RadioAstron observing time within the AO-1 period (July 2013 - June 2014) has started From the middle of 2013 RadioAstron will move to the open sky phase of its science operations. Any scientist in the world can apply for the RadioAstron observing time. ... An initial Letter of Intent (LoI) should have been directed to the Mission by 17 October 2012. ...

... Arithmetic Functions . Random Numbers . String Conversion . Searching and Sorting . ... There are 4 basic integer functions: . int abs(int number); long int labs(long int number); div_t div(int numerator,int denominator); ldiv_t ldiv(long int numerator, long int denominator); . ... In practice no functions produce truly random data -- they produce pseudo-random numbers. ... The stdlib.h provides 2 useful functions to perform general searching and sorting of data on any type. ...

You can list the contents of a directory on the remote host. ... You will need to give the path to the directory if it is not in your home directory on the remote host. For example: ftp> ls 200 PORT command successful. 150 Opening ASCII mode data connection for file list. public reports 226 Transfer complete. 17 bytes received in 0.26 seconds (0.064 Kbytes/s) ftp> ftp> dir reports/quarterly 200 PORT command successful. ...

ATMoB "Open Cluster Observing Award " Guidelines Purpose: To promote observing among the membership of the Amateur Telescope Makers of Boston through participation in the Open Clusters Observing Awards program. Introduction: This awards program is oriented towards visually observing open clusters above magnitude 9.9. ... It turns out that a very unprejudiced and convenient method to dermine the limiting magnitude is to count the number of visible stars in certain areas on the sky. ...

... The Sun has come all of one day away from breaking its record for the longest period of inactivity for the last decade - reaching a mid-summer low and falling into yet another state of "hibernation". Yesterday, on the first day of autumn, new sunspots appeared on the surface of the Sun following an absence of almost 50 days. ... The first low lasted 51 days, from 21 July until 11 September last year. ... Now, almost a year later, it seems the Sun has hit a new low almost as "deep" as the first. ...

README for XFree86 on OS/2 : Adding Variables to CONFIG.SYS . ... ETC . Set to an ETC directory. Normally, this is already set to the ETC directory of the TCP/IP code, such as SET ETC=C:\TCPIP\ETC For Warp 4 and later, this may point to the \MPTN\ directory. ... Normally you will set this variable to the same value as the HOSTNAME variable and simply add a :0.0 after it, such as SET DISPLAY=myhost:0.0 Read the X11 man page on the exact meaning of these postfixes and other options. ...

... The function is accessible, if the file with the image is open, and Ю identification of a star field is made. ... a) Load a first image by the command " Open ", and others by the command " Open +". b) Make an identification of the field. c) Open the menu " File ", select " Next " or press . ... It is necessary tree or more images. a) Load the first image by the command " Open" , and others by the command " Open + ". b) Open the menu " Marking ", select "Detect moving objects" or press - . ...

THE RELATIVE MONTHLY MEAN SUNSPOT NUMBER ON AUGUST 2014 HAS MADE Waug.= 74.7, THAT GIVES FOR 60 MONTHS (2014, FEBUARY) DEVELOPMENT CURRENT 24 CYCLES OF SOLAR ACTIVITY THE SMOOTHED MONTHLY MEAN SUNSPOT NUMBER W*feb. ... Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 25 - 31.08.2014, Forecast on 01 - 08.09.2014, Carrington Rotations 2154 (21,46.08.2014) SUNSPOT-FORMING ACTIVITY OF THE SUN WAS AT THE AVERAGE LEVEL. ... FOR THE PERIOD SEVEN EJECTIONS OF THE SOLAR FILAMENT. ...

MSSSO Annual Report 1997 . The Stromlo Exploratory was opened to the public on 25 July 1997 by the Chief Minister of the ACT, Mrs. Kate Carnell. The Stromlo Exploratory is an interactive science centre, purpose-built to cater for the community's fascination with astronomy, but, in addition, to be a display case for the ANU's powerhouse of scientific research generally. ... The Plateau is both the coldest and driest place on the Earth. ...

Radio Interferometry Principles . Radio Interferometry Signal Processing . ... A radio interferometer consists of a pair of directional antennas that are tuned to receive radio emissions from a source in a desired RF band. ... The antennas are pointed at the radio source of interest and are set up to receive the signal and process it into a form suitable for transmission to the correlator. ... In connected element interferometry, the digital signal goes directly to the correlator. ...

... ASRAS HOME . Radio Astronomy . ... About ASRAS . ... Our Observing Site . ... 2015 Mees Tour Guides . ... We're offering Regular Tours (a presentation on astronomy geared to a general audience, followed by a tour of the observatory and (hopefully!) observing of several objects, which may include the Moon, planets, nebulae, star clusters and perhaps galaxies), and Kids' Tours (a more interactive presentation specially aimed at youngsters plus the observatory tour and observing) as in prior years. ...

... Users . ... Here are a few features of the tweets from the JWST appearance at SXSW ( JWST@SXSW ). ... The retweet numbers are close to the values that Twitter has for the tweets, which means that I can't have messed up too much (I wouldn't expect perfect agreement since Twitter does not guarantee that any search will return all matching tweets). The most re-tweeted accounts. ... Number of re-tweets . ... The number of tweets used in this analysis is and the graph accounts for of this total. ...

Next: Black Hole Creation in Up: No Title Previous: Periodic radiosource LSI+61 303 . Several candidates for binary BH with optical companions are known at present (see van Paradijs and McClintock, 1993,[ 208 ] for a review). They must be products of the evolution љ of binary systems with massive companions. Lipunov et al. (1994b)[ 124 ] calculated the expected number of BH+PSR binaries following directly from the modern scenario of binary star evolution using the Scenario Machine. ...

There are six possible ways of object description: . a) by number(s) . ... d) by list . e) by orbital elements . ... They should be introduced as year, month, day with tenth (e.g. 20021104.1). d) Computations are performed for all objects listed in the file whose path and name should be introduced into assigned data field. ... On pressing Edit file button user has a possibility to look through the list of object elements or their coordinates and velocities to add or to change it. ...

... Up: Archives and Information Services . Previous: The VizieR System for Accessing Astronomical Data . ... A data archive is near completion at the ASC to store and provide access to AXAF data. ... It consists of a number of different servers which handle flat data files, relational data, replication across multiple sites and the interface to the WWW. ... This paper presents the overall archive architecture and the design of client and server components as it was used during ground calibration. ...

Apr 13 2015 Cygnus - The Swan By NGC /IC Number Catalog IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC 1300 1301 1302 1303 1304 1306 1310 1311 1315 1318 1318A 1318B 1340 1363 1369 1392 1400 1402 4867 4996 5067 5068 5070 5076 5117 M Her Object Type Non-Existent Glxy Scd: Glxy SAB(s)c? Glxy SAc: Non-Existent Non-Existent Non-Existent Open Cl 17.0 I 1 r n Non-Existent Nebula E Non-Existent ...

This module provides support for dynamically configured mass virtual hosting . ... Source File: mod_vhost_alias.c . ... For simple name-based virtual hosts you might use the following directives in your server configuration file: UseCanonicalName Off VirtualDocumentRoot /usr/local/apache/vhosts/%0 . A request for http://www.example.com/directory/file.html will be satisfied by the file /usr/local/apache/vhosts/www.example.com/directory/file.html . ... Module: mod_vhost_alias . ...

... Behemoth black hole found in an unlikely place . ... black holes . ... Observing springtime deep-sky objects with a large telescope . ... Could large numbers of black holes account for much of the "dark matter" estimated to exist in our universe? ... NASA, ESA, M.J. Jee and H. Ford (Johns Hopkins University) No, because the universe never had the raw material to grow enough black holes to account for current estimates of dark matter. Get instant access to subscriber content on Astronomy.com! ...

... J5: Radio and Radar Studies of the Solar System. ... Analogously, the key idea of the USSR (United Solar System Radar) concept would be the thousandfold increase in sensitivity over existing radar astronomy facilities, and besides, only the tenfold increase in transmitting power and collecting areas of transmitting and receiving antennas is necessary for this purpose. ... So, let us try to imagine the scientific impact, which would provide this United Solar System Radar. ... 3)  Asteroid's moons; . ...