Asteria — interactive night sky map
Owl Nebula (Messier 97) is a planetary nebula in the constellation Ursa Major with an apparent magnitude of 9.9, spanning about 3 arcminutes. A telescope is needed to observe it.
It is best placed in the evening sky around March. It is visible from the whole northern hemisphere and from southern latitudes down to about 35°S. It is circumpolar (never sets) north of latitude 35°N.