How to Import Vizier Catalogs

The first thing is go to Vizier page at http://vizier.u-strasbg.fr/viz-bin/VizieR. The easiest way is to press Find Catalogue as showed below, after you write desired catalogue name or type (in our example we are looking for quasar catalogues). Vizier is a fairly sophisticated site with several ways to reach data catalogs. If you are an advanced user it would be interesting to master it.

After pressing Find Catalogue you will receive a page like this

We want the Asiago Catalogue of QSOs by Barbieri 1983.  Clicking in the button marked VII/69 we will reach the main catalogue page as follows. You can see details about the Catalogue by pressing ReadMe link.

Now we select fields that we want to have, including any constraint we need. For example we can put in "z" field (Redshift) in this example a constraint like >0.3 and <2.0. You can  define constraints for each field.

Finally we will get the catalogue. Before that, however we must assure that :

1 - Maximum entries per table set as 9999

2 - Output Layout set as Tab-Separeted-Values

3 - Output Preferences ser J2000 for compute and sort by. If you want to maintain original order you sort by r. This last case is for numbered catalogues like Hickson and Arp.

4 - Finally press Submit Query

After a while you get this screen below and change the name of file using SAVE and transfer to your desired folder

Now is the easiest part. You launch Tachyon PC client and compile the catalog transfering or not to your device.