V1331 Cygni (also known as V1331 Cyg) is a young star in the constellation Cygnus.

This circumstellar disc is a great birthplace for young stars, which form in the cloud.

[5] V1331 Cygni is heavily obscured by dust, so the properties of the central star are hard to deduce; however, it is estimated to have a radius five times that of the Sun and a mass of 2.8 M☉.

[3] The General Catalog of Variable Stars classifies V1331 Cygni as an "INST" type variable, meaning a T Tauri star which shows rapid light variations.

[9] Unlike many T Tauri stars, the mean brightness of V1331 Cygni remains nearly constant over long time periods.