Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_245800_2 ( duration__days_ VARCHAR, flight_down VARCHAR )

### Question ###
How many days were the station of Soyuz 35 in flight down were in orbit?

### Accurate SQL ###

SELECT duration__days_ FROM table_245800_2 WHERE flight_down = "Soyuz 35"