Object name: VDB133
Designation(s): VDB133, GN20.29.1,
vdB 133 is a nebula surrounding and lit by 44 Cygni, a 6th magnitude star. It consists of both a reflection nebula GN 20.29.1 and the HII region LBN 076.41-01.45. 44 Cygni is an F5Iab star. Much whiter than most stars that illuminate reflection nebula. It may be in front of the nebula as the color is about that of the star rather than blue that is usually seen due to scattering from starlight passing through the dust and gas. F5 tells us it is a somewhat hotter star than our sun. The Iab means it is in the supergiant class and the ab that it is of intermediate luminosity, a means luminous while b less luminous so ab is in the middle someplace. A famous Iab star is Betelgeuse.