NGC7129 Reflection Nebula
NGC 7129 Is a reflection in the constellation Cepheus. A young open cluster is responsible for illuminating the surrounding nebula. A recent survey indicates the cluster contains more than 130 stars less than 1 million years old. The nebula is rosebud-shaped; the young stars have blown a large, oddly shaped bubble in the molecular cloud that once surrounded them at their birth. The rosy pink color comes from glowing dust grains on the surface of the bubble being heated by the intense light from the young stars within. The ultra-violet and visible light produced by the young stars is absorbed by the surrounding dust grains. They are heated by this process and release the energy at longer infrared wavelengths. This nebula is aproximatly 3300 light years from earth. The apparent size is about 7min X 7min.
Crop on NGC7129
Camera Apogee U8300
Mount Atlas EQG
Filters Astrodon LHaRGB Gen1
Exposures L 5.3hrs Ha 2hrs R1.5hrs G2hrs B4hrs 10min subs
Location Connellsville Pa. Home Observatory 2011