Robuta

https://www.aanda.org/articles/aa/full_html/2009/06/aa11050-08/aa11050-08.html Triggered star formation on the borders of the Galactic Hii region RCW 82 | Astronomy &... triggered star formation https://www.aanda.org/articles/aa/abs/2007/36/aa7474-07/aa7474-07.html Triggered star formation on the borders of the Galactic H ii region RCW 120 | Astronomy &... triggered star formation