aka NGC 2168, is a relatively close open cluster of stars in the west of Gemini.
It was discovered by Philippe Loys de Chéseaux around 1745 and independently discovered by John Bevis before 1750.
It is scattered over part of the sky almost the size of the full moon and is 3,870 light-years away. The compact open cluster NGC 2158 lies directly southwest of it.

Leonard & Merritt (1989) computed the mass of M35 using a statistical technique based on proper motion velocities of its stars. The mass within the central 3.75 parsecs (12.2 ly) was found to be between 1600 and 3200 solar masses, consistent with the mass of a realistic stellar population within the same radius.