Member of the International Virtual Observatory Alliance

VO Day Bochum 2016

This VO Day will take part on 'Tuesday January 26th and wednesday january 27th 2016

This course provides a basic introduction to the Virtual Observatory. The focus will be on access and analysis of table data, images and spectra. Participants will get to use Virtual Observatory tools like Topcat, Aladin, Splat and ADQL in hands-on sessions.

The VO Day will be held by Markus Demleitner and Hendrik Heinl, both GAVO/ARI.

Please install the software we will use in the course in advance. All of these require Java to be installed on your machine. If you have problems during installation, don't hesitate to contact us.

You will need a laptop and an internet connection.

The tutorials used are availbe in PDF format from


January 26th

10:00 Welcome and very short introduction to the VO tools and standards
10:15 Introduction to TOPCAT and Aladin with exercises

12:00 Lunch break

13:00 TOPCAT and Aladin continued
13:45 SPLAT with excersises
14:30 Coffee break
14:45 Introduction to ADQL
16:15 Coffee break
16:30 ADQL exercises
17:30 End

January 27th

10:00 Introduction to the Virtual Observatory standards and tools
11:30 Coffee break
11:45 Comprehensive Use Cases

12:45 Lunch break

13:30 Project meetings
17:00 End

Our goal of the workshop is that you leave with a set of skills that enables you to

  • retrieve data from the VO and how to fast access even large datasets with millions of rows/hundreds of columns
  • perform a query across multiple catalogues and cross-match them
  • exchange data between different VO tools
  • communicate with external VO and non-VO data services
  • how to use VO standards and tools and how to benefit from them

There will be time to ask questions and to bring your own use cases. We encourage you to send your use cases to us in advance to: