Abell 35, also known as Sh 2-313, is a nebula located in the constellation of Hydra, at a distance of 400 light years.

The nebula is characterised by its unusual appearance, which features a central bow shock surrounded by symmetric emission.

[3] Although it is commonly referred to as a planetary nebula, it has been suggested that the nebula wasn't created by a post-AGB star shedding its outer shells but it is interstellar medium photoionised by the passing binary system, leading also to the creation of the bow shock.

[8] Its effective temperature is estimated to be about 80,000 Kelvin and its mass to be 0.48 M☉, too low to form a planetary nebula.

[9] Planetary nebulae with similar binary systems, comprising a fast rotating late-type subgiant or giant star and a very hot companion are referred to as having Abell 35-type nuclei.