NGC7129 Reflection Nebula

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


Scope              TMB130mm

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

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