With good lubricating performance and excellent substrate adhesion, WS₂ can be applied in catadioptric telescope lubrication. The lens tube and other important parts can be lubricated with this material to ensure the high efficiency and stability of the celestial observation.

Tungsten disulfide can be used to lubricate the relevant parts of the reflecting telescope. And Newtonian telescope is a main kind of reflecting telescope. The excellent observation ability of the telescope depends on the lubrication and maintenance of the parts.

With good lubricating performance, tungsten disulfide can be used in equatorial mount lubrication. The use of this instrument is usually accompanied by a lot of friction and energy loss. So its parts have to be lubricated for the stable observation.

Tungsten disulfide has great application value in the lubrication of refracting telescope, which is a main type of astronomical telescope. The parts of refracting telescope can be lubricated with tungsten disulfide. And the lubricated parts usually have long service lives, together with high work efficiency.