University of Wisconsin

Space Astronomy Laboratory

ASTRO - 2

WUPPE

OBJECT: NGC 7023
ID # 4211

UW Astronomer: Joni Johnson


HD 200775 is a hot young star, and NGC 7023 is its primordial nebula. NGC 7023, comprising vast clouds of dust and gas, supplied the matter from which HD 200775 was formed. The light from HD 200775 illuminates the surrounding nebula, which is why NGC 7023 is called a reflection nebula. The starlight reflected by the matter of the nebula is polarized as it is scattered. This polarized light will be detected and analysed by WUPPE to help us understand the dynamics of primordial nebulae from which stars are formed.