According to astronomers, when processing the image obtained from the Hubble telescope, techniques were used to reveal the smallest details, such as filaments of ionized gas.
Observations of the nebula were made using the Hubble Wide Field Camera 3. Five different filters and innovative post-processing helped to improve the detail of emissions of twice-ionized oxygen (shown in blue), as well as ionized hydrogen and nitrogen (shown in red).
The Veil nebula was discovered by the English scientist William Herschel at the end of the XVIII century. It is located about 2100 light-years from Earth, which is relatively close from an astronomical perspective. The nebula was created due to the explosion of a star that happened about ten thousand years ago.