Cosmic Flower in the Dark: The Iris Nebula

Astrophotography of Cosmic Flower in the Dark: The Iris Nebula captured by Tony Brown

During three magical nights in late August 2025, I had the opportunity to capture the stunning Iris Nebula from the dark skies of Cornwall. Armed with an Optolong L-Pro filter to tame the star sizes, I took over 300 images, each lasting three minutes, to unveil the intricate details of this celestial gem. The Iris Nebula, also known as NGC 7023, unfolds about 1,300 light-years away in the constellation of Cepheus, where it's illuminated by the star HD 200775—ten times more massive than our sun. This reflection nebula glows with a captivating blue-white hue as the starlight dances off the surrounding cosmic dust. Interestingly, astronomers have found polycyclic aromatic hydrocarbons (PAHs) within the Iris, pointing to the building blocks of organic chemistry. As I gazed at this nebula, it was a thrilling thought that when this light began its journey, the ancient Cornish people were speaking the Cornish language and shaping a burgeoning Christian identity in the old Celtic kingdom of Dumnonia. The Iris Nebula is not just a visual delight but a bridge across time and space, connecting present-day awe with tales of the past.