NGC 7129 – Reflection Nebula in Cepheus

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NGC 7129 is a reflection nebula located in the constellation Cepheus. Located 3,300 light years away, NGC 7129 is a young open cluster of newborn stars. Many of the stars within the cluster are less than 1 million years old, which is very young when you consider many of these stars will live to be many billions of years old. The gaseous features are the left over ingredients for star formation.

NGC 7129 is a reflection nebula. Reflection nebulas reflect light from nearby stars while emission nebulas generate light from ionized gases. Reflection nebulas are images through red, green, and blue filters while emission nebulas are best imaged with narrowband filters (Sulphur-II, Hydrogen-Alpha, Oxygen-III).


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