and where can I get a list of discovered planets?
Presto. http://exoplanet.eu/catalog.php
obviously (I don’t know how aware you are) there are hundreds of thousands of planets we have not discovered.
Cool graphic: http://www.space.com/11279-nasa-alien-planets-image-1235-exoplanets.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+spaceheadlines+%28SPACE.com+Headline+Feed%29
amount maybe,but we can see only 7000