Sh 2-2, also known as Sharpless 2, is an emission nebula in the constellation of Scorpius. It appears as a mid-range brightness making it difficult to view. It is believed to currently host an X-ray binary star that originated and was ejected from the Scorpius OB1 association. Amateur astronomers can usually see it with a wide field telescope and a hydrogen-alpha filter. The nebulous area is fairly large with an irregular shape appearing as a H II region. The remnant has an apparent diameter that covers approximately 60'. It is seen behind the open cluster NGC 6281.
References
External links "SH 2-2". SIMBAD. Centre de données astronomiques de Strasbourg.