Stellar Clusters are very useful laboratories for empirically studying stellar evolution. ... All cluster stars are at the same distance . All cluster stars have the same physical age . ... CM diagram Young Cluster In this case we see the Main Sequence fully represented. The blue dots represent massive stars with short main sequence lifetimes. ... Thus, identifying the most massive star which is still on the main sequence is an effective means of determining the age of a stellar cluster. ...

. To switch to another account from your current account: pwd /home/helper su projX Password: (password for account projX) whoami projX cd pwd /home/projX . The user helper switches to the account they have under the username projX and confirms this with the whoami command. They then use the cd command to place themselves in the home directory for the account they have switched to. They can now work with the files and directories in this account in the usual way.

... Initially SAI Supernova Catalogue was presented in the form of filebased system. ... The current version of SAI Supernova Catalogue presents data on supernovae together with data on their parent galaxies. ... The main source of data for the galaxies was LEDA database. ... In some cases our data were compared with the ones from the Asiago Supernova Catalogue and from List of Supernovae at Harvard-Smithsonian Center for Astrophysics, but the compilation of our Catalogue is carried out independently. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Last week, our tour outwards made a stop at our own home planet. Permit me to hold our tour a bit longer, to linger and gaze upon the Moon. ... Complex molecules floated in the water, but the concentration of these compounds wasn't high enough for them to get any further along than making amino acids and the like. ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! ...

God Science Forum Message . Forums: . ... God and Science ћ SETI ћ Software ћ UFO ћ XEphem . ... Discussion Forums | God and Science | ... Nothing? Beyond Numbers.. Forum List | ... You do not know your future; yet it feels as if it is ALREADY known. ... 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" . ...

... Tempo2 Overview . Download tempo2 . ... edit SideBar . ... Edit . ... Site / . This is the default configuration page for PmWiki 's identity-based authorizations (aka "authuser.php"). ... Specify login accounts in the form " username: (:encrypt password :) ": . Examples: # alice: (:encrypt wonderland:) # bob: (:encrypt builder:) . ... To authorize specific login accounts for pages and groups, use " id:username " as a password in ?action=attr or $DefaultPasswords (see PmWiki.Passwords ). ...

Motif and X-Windows . ... After successfully logging in, you will see the Session Manager window (Figure 6.2 ). The Session Manager window is used to control such things as starting applications and pausing or ending the session. Motif makes extensive use of pull-down menus which are accessed by clicking with the left mouse button while the cursor is on top of a word in the menu bar. ... Applications are started by selecting an item in the Applications pull-down menu. ...

... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . ... What would cause Earthт??s orbit to become more circular instead of its present elliptical orbit, and has this ever happened before? ... Gravitational interactions among the planets cause the ellipticities of the orbits to oscillate periodically by a few percent over millions of years. Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ...

... ON THE ROLE OF LARGE-SCALE PLASMA IRREGULARITIES AT THE FINAL STAGE OF ANOMALOUS ABSOPTION DEVELOPING UNDER HF HEATING OF THE IONOSPHERE . ... Fig. ... With the aid of numerical statistical modeling based on multiple ray tracing it is shown that in presence of large-scale irregularities the reflected signal amplitude mean value is increased significantly. ... Dependence of the mean amplitude of the reflected from the ionosphere signal on the large-scale (10-50 km) electron density irregularity level...

home . dfos . ... procedures . ... This page describes how to configure the DFOS login rc files in a standardised way. ... The standardised DFOS login relies on bash, the VLTSW standard PECS and then on .qcrc and .dfosrc files. Installation of PECS provides a .bashrc file, a .profile file and a .pecs directory filled with several further PECS files.. ... HOME}/.pecs/apps-all.env . ... Note though that processAB when called from Condor does source .bashrc, which thus sources your .pecs files. ...

... To get access to the software you must be registered at the ASC RadioAstron Server "ra.asc.rssi.ru" ------------------------------------------------------ IMPORTANT: At present the software "FAKERAT" runs only under 32 bit Linux workstation in X windows with C shell script. ... All procedure runs under C shell. ... Copy all files from the given directory to your computer. ... Then, copy txt-file representing the current version of orbit to the "orbit" subdirectory located in "fakerat_07041020". ...

Plans are under way to create a new way of performing non-interactive observations which will be called auto-observing . ... Non-interactive observing with CIMA has for a long time been available with the use of CIMA command files. Contrary to normal command file observing which requires a command file with a set of commands to be executed sequentially, auto-observing will use a list of sources and a list of instructions on how to observe each of the sources. ...

... Two computers in the same network are usually linked via a single physical cable. When they communicate over the network, the programs in each computer that take part in the communication are linked via a virtual connection , a sort of imaginary cable. ... When it notices an incoming network login (i.e., it notices that it gets a new virtual connection to some other computer), it starts a new process to handle that single login. ...

... There are several classifications of the exact methods. ... A more physical classification is that of Th.Wriedt (1998) where he devides the methods in 3 groups: Mie theory expansions (SVM), surface-based (PMM, EBCM, GMT, MoM) and volume-based (FDTDM, TLMM, FEM and various volume IEMs - CDM, DDA, etc.) methods. Features of the methods . Among the methods only SVM and EBCM are capable to provide very accurate results (5 and more correct decimals) (Mishchenko et al., 2000). ... 1998) Part. ...

... This chapter deals with the modelling and the analysis of image and table data by fitting non--linear functions, using least squares approximation. ... The MIDAS commands dealing with functions or linear combination of functions and with the modelling process are then presented. ... A tutorial command ( TUTORIAL/FIT ) has been introduced in order to show the capabilities of the package. A brief description of the implemented methods is included in section . ... The Newton--Raphson Method. ...

... Apache HTTP Server Version 2.4 . ... Group Authorization and Login using SQL . ... implement functions that start and end client-side sessions. # mod_dbd configuration DBDriver pgsql DBDParams dbname=apacheauth user = apache pass=xxxxxx DBDMin 4 DBDKeep 8 DBDMax 20 DBDExptime 300 Directory /usr/www/my.site/team-private/ # mod_authn_core and mod_auth_basic configuration # for mod_authn_dbd AuthType Basic AuthName Team AuthBasicProvider dbd # mod_authn_dbd SQL query to authenticate a logged...

... Dept. for Astrometry & Space Geodynamics . ... Dept. for Physics of Stars&Galaxies . ... Dept. for Physics of Planetary Systems . ... Science . ... All Pages . ... Research of the stars with planets which pass apparent star disk (transiting exoplanets). The transit method based on a detection star brightness decrease during a passing of planet in front of its disk. Observed brightness system decries when planet pass star disk and its volume depend of the relative sizes star and planet. ...

Next: Discussion Up: No Title Previous: Parameters of binary compact . Under the assumptions made above, we can calculate the binary merging rates in the Galaxy R . ... Figure: The dependence of different compact binary merging rates in a model ``elliptical'' galaxy (where all the stars were formed simultaneously at the moment t =0) with mass M . The horizontal line shows the mean merging rate of binary NS in a spiral galaxy of the same mass with a stationary star formation. ...

Atmospheric influence on the different radio-engineering system functioning . ESTIMATION OF ATMOSPHERIC OPTICAL CHARACTERISTICS AND REMOTELY SANSED IMAGE CORRECTION . ... Direct transmittance estimation results for 12 channels of the spectrometer CHRIS. ... We have managed to develop a direct method of estimating the discrete Normalized Atmospheric Point Spread Function (NAPSF) from available images alone, not using any external sources of information about the atmosphere. ... IRE RAS 1996-20 11 ...

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Space Flight . ... This is a recent (November 2011) NASA diagram summing up the past, present and future (plus a might have been) of US rocketry. €аThe rockets are arranged from left to right in order of size. ... It is towards the larger end we find the most familiar vehicles in the shapes of the Shuttle (NASA?s recently retired Space Transportation System ) and Saturn 5 (still the most capable US launch vehicle to actually fly). ...