In the constellation Cepheus, NGC 7129 and NGC 7142 are visible. They are reflection nebulae and appear to be separated by about half a degree. NGC 7129 is about 3,000 light years away whereas NGC 7142 is approximately 6,000 light years away. NGC 7129 is toward the left of the image and the red crescents within it are 'energetic jets' from newborn starts. NGC 7142 is to the right and the foreground dust clouds redden the light emitted from the stars, making it difficult to study in many cases.
No comments:
Post a Comment