SELECT MAX(ngc_number) FROM table_name_61 WHERE object_type = "open cluster" AND right_ascension___j2000__ = "06h01m06s"
Nomor NGC mana yang memiliki tipe objek kluster terbuka, dan kenaikan kanan (J2000) dari 06H01M06S?
CREATE TABLE table_name_61 (ngc_number INTEGER, object_type VARCHAR, right_ascension___j2000__ VARCHAR)