Messier 35 is the large and bright open cluster in the center of the image. This cluster is located in the Gemini constellation and can be spotted with any small telescope or sufficiently good quality binoculars. Messier 35 is also known by the identifier NGC 2168.

NGC 2158 is the smaller dense looking cluster of stars in the lower right corner of this image. This cluster is also in the Gemini constellation and can also be spotted without difficulty with the right equipment.

The two clusters are unrelated. The 2010 MNRAS paper (Pandey A.K., Sandhu T.S., Sagar R. and Battinelli P.) shows Messier 35 as having a distance of 1185.769 parsecs while NGC 2158 is 8472.274 parsec away. Converted to light years, this is puts M35 at 3867.46 light years away, while NGC 2168 is 27632.86 lght years off. By this measure, NGC 2168 is 23,765.4 light years away than M35.

However, the Wikipedia page on NGC 2158 says that NGC 2158 is only 9000 light years further away than M35. So there is some discrepency between Wikipedia and the MRAS values. Still, both sources agree that Messier 35 is considerably closer to us than NGC 2168 is.