astro.wikisort.org - Nebula

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.

Sh 2-2

Emission nebula
H II region
Observation data: J2000 epoch
Right ascension	17h 04m 06.6s[1]
Declination	−38° 08′ 33″[1]
Apparent dimensions (V)	1°[1]
Constellation	Scorpius
Designations	Sh 2-2, Gum 57
See also: Lists of nebulae

The nebulous area is fairly large with an irregular shape appearing as a H II region.[2] The remnant has an apparent diameter that covers approximately 60'.

References

External links

• "SH 2-2". SIMBAD. Centre de données astronomiques de Strasbourg.

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