Intended to be an easy-to-use variable star data visualization and analysis tool. A SourceForge...
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Transcript of Intended to be an easy-to-use variable star data visualization and analysis tool. A SourceForge...
Intended to be an easy-to-use variable star data visualization and analysis tool.
A SourceForge project licensed under GPL.
Downloadable via VStar Team page.
Testers, developers, documentation writers still welcome.
VStarVStar VStarVStar
AAVSO AAVSO International International
DatabaseDatabase
AAVSO AAVSO International International
DatabaseDatabase
VSXVSX(Variable (Variable
Star Index)Star Index)
VSXVSX(Variable (Variable
Star Index)Star Index)
CSV, CSV, TSV TSV filesfiles
CSV, CSV, TSV TSV filesfiles
Become familiar with VStar by example, optionally trying some features, follow-up.
Need Java 1.6 or higher installed.
Click “Download VStar Now” button on this page: http://www.citizensky.org/teams/vstar-softwar
e-development
Screenshots in slides to come are included to indicate key aspects of what attendees saw.
VStar’s appearance has changed slightly since Citizen Sky 2, mostly with respect to background plot color and additional information on phase and mean plots. W Uma phase plots, eps Aur light curve, and
omi Ceti polynomial fit show some of these changes.
https://sites.google.com/site/aavsocvsection/
Not U Sco, but another similar system:Artist’s rendition of recurrent nova RS Oph
Image credit: David Hardy and PPARC
Barbara Harris
Shawn Dvorak
Load U Sco from file Observation details Plot, table link Zoom Change visible series Fainter-thans
1979
1987
1999 2010
Jan 28
Jan 27
Feb 2
courtesy www.citizensky.org
By Brian Thieme and courtesy www.citizensky.org
By Nico Camargo and courtesy www.citizensky.org
Load Epsilon Aurigae from AID Filter obscode (BDJB, MRV) Save, print Info Preferences
Colors New group: alpha Ori, del Cep, lx Cyg, omi Cet, x
Cyg Error bars Mean series change, anova Help (anyone interested in writing more docs?)
http://www.citizensky.org/forum/w-uma-another-eclipsing-binary-star
Load UMa from a file. Phase plot with period 0.33363749 Replot with period 0.333
shows how much getting the period right matters
Load X Cyg from file Period analysis Phase plot
Plug-ins: extend VStar’s functionality.
http://www.citizensky.org/teams/vstar-software-development/example-vstar-plugins-jar-files-development-doc
Create vstar_plugins dir under: Windows: C:\Documents and Settings\user *nix: ~/user
Mira (omi Cet) Mean bins change Polynomial fit model
try different degree values from 1..7
polynomial fit with degree 7
http://www.youtube.com/watch?v=hhMeumI36BM
http://en.wikipedia.org/wiki/Chi_Cygni
Mira type pulsating variable
post-Asymptotic Giant Branch Star (late stage red giant)
5th to 13th magnitude
period: ~407 days
http://www.citizensky.org/teams/vstar-software-development
https://sourceforge.net/projects/vstar/
http://www.citizensky.org/teams/vstar-software-development/vstar-citizen-sky-2-demo-data-files
http://www.citizensky.org/teams/vstar-software-development/example-vstar-plugins-jar-files-development-doc