description Iris Nebula (NGC 7023) Overview
The Iris Nebula (NGC 7023) is a bright reflection nebula located approximately 1,300 light-years from Earth in the constellation Cepheus. It is illuminated by the hot young star HD 200775, with the star's light reflecting off surrounding dust grains to create the nebula's distinctive blue coloration. The nebula appears against a backdrop of extensive dark nebulosity and has a flower-like structure with petal-shaped features that give it its common name, making it a popular target for astronomical observation and astrophotography.
help Iris Nebula (NGC 7023) FAQ
What type of nebula is the Iris Nebula?
The Iris Nebula (NGC 7023) is a bright reflection nebula located in the constellation Cepheus. Its striking blue coloration is created by starlight reflecting off the surrounding dust grains.
What star illuminates the Iris Nebula?
The nebula is illuminated by the hot, young variable star designated HD 200775. This star's intense light scatters off the surrounding dust clouds to create the glowing blue appearance.
Where is the Iris Nebula located in the sky?
You can find the Iris Nebula in the northern sky within the constellation Cepheus. It is a popular astrophotography target due to its vivid blue petals of light set against extensive dark nebulosity.
Do I need a large telescope to see the Iris Nebula?
While it has a magnitude of around 6.8, the Iris Nebula requires a dark sky to observe visually. A small to medium telescope (around 4 to 8 inches) is generally recommended to spot its faint glow.
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