SELECT COUNT(ngc_number) FROM table_name_86 WHERE constellation = "sagittarius" AND object_type = "diffuse nebula" AND declination___j2000__ = "°02′"
Sebutkan jumlah total nomor NGC untuk sagitarius dan nebula difus dengan deklinasi ° 02 ′
CREATE TABLE table_name_86 (ngc_number VARCHAR, declination___j2000__ VARCHAR, constellation VARCHAR, object_type VARCHAR)