CREATE TABLE table_name_86 (latitude VARCHAR, year_named VARCHAR, name VARCHAR)

What is the Latitude of the Alajen Vallis named after 1997?
SELECT latitude FROM table_name_86 WHERE year_named > 1997 AND name = "alajen vallis"
SELECT "latitude" FROM "table_name_86" WHERE "alajen vallis" = "name" AND "year_named" > 1997