Sh 2-114 – Flying Dragon Nebula

It has an extremely complex filamentary structure whose dynamics and morphology have prompted debate over whether it is an ancient supernova remnant (SNR) or interstellar gas shaped by strong stellar winds.

This deep-sky region is especially notable for its low surface brightness, making it an extremely difficult and fascinating target for advanced amateur astrophotographers and professional observatories. Capturing its subtle details requires long exposure times with dedicated cameras and the use of a narrowband filter centred on hydrogen-alpha (Hα) emission, revealing twisted, sinuous filaments that evoke the shape of an eastern dragon winding through the Milky Way.

The origin of its morphology has been the subject of numerous astrophysical studies seeking to clarify its dynamic nature. On the one hand, some hypotheses suggest that it may be a very old supernova remnant, in which the expanding shock wave from an ancient stellar explosion compressed and ionised the surrounding interstellar medium. On the other hand, alternative kinetic models suggest that it could be an interstellar bubble sculpted by the combined action of strong stellar winds and ultraviolet radiation from nearby massive stars, which push the surrounding gas and create this distinctive cavity and network of filaments.