According to CBAT's Unconfirmed Observations Page (http://www.cfa.harvard.edu/iau/unconf/cbat_unconf.html), a possible nova has been reported in Oph. (position 173950.93 -235000.9, mag 10.2C on May 25). No prominent counterpart is present in catalogs. The most recent observation by ASAS-3 was on May 16, giving a negative result.