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. ...

... Science . ... Science Users Information > Science and Technical Meetings > Conferences 2011 > Dynamics of Low-Mass Stellar Systems: From Star Clusters to Dwarf Galaxies . ... Science Users Information . ... Observing with ESO Telescopes . ... Science Software . ... ESO-MIDAS . ... Science Data Products Forum . ... ESO Data . ... ESO Science Newsletter . ... We aim at bringing together a mix of astronomers from both observations and theory that work on the dynamics of dwarf galaxies and star clusters...

. XMM-Newton Science Analysis System . ppssumm (ppssumm-3.3) [xmmsas_20050815_1803-6.5.0] . Meta Index / Home Page . The presentation of source level products may make these pages rather large and difficult to present in a sensible way. It may be necessary to break them down further into sub-pages. XMM-Newton SOC/SSC -- 2005-08-15

... Educational programs (Russian) . ... Samara region . SSAU History . SSAU roadmap . ... International relations . ... The 43rd International Exhibition of Inventions took park from April 15 to April 19 in Geneva (Salon international des inventions Gen ve), which was attended by the authors from 45 countries of the world. ... Under the exhibition jury decision SSAU development was awarded a gold medal and received a special prize and its authors have got honorary diplomas. ...

... Applying the Lessons Learned from HST Operations to New Missions" , presented at SPIE's International Symposium Astronomical Telescopes and Instrumentation . ... Portable Astronomical Scheduling Tools" presented at the ADASS V Conference . A System for Long-Term Scheduling of Ground-Based Observatories" ( html , postscript ) presented at the Conference on New Observing Modes My technical papers, as well as those by STScI colleagues are available on-line. ... Spike planning and scheduling system . ...

... We present a proposed standard for data dictionaries associated with catalogs being accessed through the Astrophysics Data System (ADS) Mosaic Catalog Service. Each catalog made available for searching must have a data dictionary, which consists of a set of specified keywords describing format, content and location of data. ... There are two keywords in the Table Data Dictionary which indicate to the server software that the corresponding column contains special attributes. ...

is an astronomer at the Harvard-Smithsonian Center for Astrophysics. Her work at the CfA includes astronomy curriculum development for elementary schools, Internet-based hands-on astronomy activities for K-8, and science-oriented public outreach programs. She has logged over a thousand hours in Massachusetts elementary school classrooms implementing science curricular materials and giving presentations about recent astronomical events. ... Everyday Classroom Tools Home Page . ...

... The damage to NIFS has freed up the RSAA instrumentation team to concentrate on the timely delivery of the Gemini South Adaptic Optics Imager (GSAOI). ... GSAOI is the second instrument that ANU is building for Gemini. ... GSAOI Website: http://www.mso.anu.edu.au/gsaoi/ NIFS Website: http://www.mso.anu.edu.au/nifs/ RSAA Website: http://www.mso.anu.edu.au/ Australian Gemini Project Office Website: http://www.ausgo.unsw.edu.au/ Gemini Public Information Website: http://www.gemini.anu.edu.au/public/ . ...

... The purpose of the meeting was to review the current status of project development and to discuss working plan for international cooperation on the stage of preparation to the launch. 22 foreign specialists participated in the meeting representing Australia, Canada, China, Finland, Japan, the Netherlands, Ukraine, United Kingdom, and USA. ... To define personal content of proposed working groups and to develop plan of their activity for 2003 year (15 November 2002, chairmen of working groups). ...