Within the Iris, dusty nebular material surrounds a hot, young star.The dominant color of the brighter reflection nebula is blue, characteristic of dust grains reflecting starlight.

• 星云物质围绕在一颗大质量、炽热，显然尚处于形成阶段的年轻星球，星云的主要颜色仍是蓝色，这是尘埃颗粒反射星光的特征。