SIMBAD references

We describe the new version of the General Catalogue of Photometric Data. Our database of photometric photoelectric data has been updated and completely rebuilt. Most collections contain the data published to the end of 1995, taken from more than 2500 papers. We have updated the Master Index which now contains information for over 207500 stars and components. Public access to the data is provided through the World Wide Web at http://obswww.unige.ch/gcpd/gcpd.html . A connection has been established with the ADS Abstract Service which allows to retrieve data directly from the ADS output pages.