StarGazer - star field visualization system and its integration to WFPDB Rumen G.Bogdanovski SSADC, Bulgaria

StarGazer - star field StarGazer - star field visualization system and its visualization system and its

integration to WFPDB integration to WFPDB

Rumen G.BogdanovskiRumen G.BogdanovskiSSADC, BulgariaSSADC, Bulgaria

e-mail: [email protected]: [email protected]

What is StarGazer?What is StarGazer? Astronomical software system for star field Astronomical software system for star field

visualization based on stellar and deep-sky visualization based on stellar and deep-sky objects cataloguesobjects catalogues

Web-based client-server architectureWeb-based client-server architecture Written in Perl, powered by PostgreSQL as a Written in Perl, powered by PostgreSQL as a

search enginesearch engine Available online at Available online at

http://www.astro.bas.bg/stargazerhttp://www.astro.bas.bg/stargazer http://www.http://www.skyarchiveskyarchive.org/stargazer.org/stargazer

StarGazer ArchitectureStarGazer Architecture

FeaturesFeatures Star field visualization in Adobe PostScript and PDF formatsStar field visualization in Adobe PostScript and PDF formats Capability of using all available stellar and deep-sky objects Capability of using all available stellar and deep-sky objects

cataloguescatalogues Extremely fast cross-reference and search in the catalogues Extremely fast cross-reference and search in the catalogues

provided by PostgreSQLprovided by PostgreSQL Platform independence (compatible with all operating Platform independence (compatible with all operating

systems)systems) Two types of user interface: web-based and command line Two types of user interface: web-based and command line Database of over 60,000,000 objectsDatabase of over 60,000,000 objects Catalogues currently used: YBS, SAO, Tycho, GSC-ACT, Catalogues currently used: YBS, SAO, Tycho, GSC-ACT,

USNO A2(up to 16.3m), Messier, IC, NGC and some cross-USNO A2(up to 16.3m), Messier, IC, NGC and some cross-reference datareference data

Object Search InterfaceObject Search Interface

StarGazer User InterfaceStarGazer User Interface

StarGazer Output in gvStarGazer Output in gv

Example Star ChartsExample Star Charts

Integration with WFPDBIntegration with WFPDB Visualization of a selected star fieldVisualization of a selected star field Visualization of wide field plates not yet Visualization of wide field plates not yet

digitalized digitalized Visual identification of the stars on a Visual identification of the stars on a

selected plateselected plate Automatic identification of the stars on the Automatic identification of the stars on the

digitalized plates (currently under digitalized plates (currently under development)development)

Example: Pleiades clusterExample: Pleiades cluster

Plans for developmentPlans for development Better integration with WFPDBBetter integration with WFPDB Extending StarGazer’s database with Extending StarGazer’s database with

more cataloguesmore catalogues Calculation and visualization of Calculation and visualization of

ephemerides of Solar system objectsephemerides of Solar system objects Integration with AVOIntegration with AVO

ConclusionConclusion Used by professional and amateur Used by professional and amateur

astronomersastronomers Flexible and extensible designFlexible and extensible design Wide interestWide interest Promising futurePromising future

That is all folks!That is all folks!