Asteria — interactive night sky map
Jishui (Omicron Geminorum) is a star in the constellation Gemini with an apparent magnitude of 4.89. It lies about 169 light-years from Earth. It is visible to the naked eye under dark skies.
It is best placed in the evening sky around January. It is visible from the whole northern hemisphere and from southern latitudes down to about 55°S. It is circumpolar (never sets) north of latitude 55°N.