A 5.1 hour integration of M94 in LRGB, Hydrogen alpha and ionised Sulphur, taken with an ASI 533MM Pro camera and filter wheel set using a Sky-Watcher Esprit 80ED triplet refractor fitted with a field flattener. Data were gathered over several nights and integrated/processed in Pixinsight. M94 lies in the constellation of Canes Venatici at a distance of ~17 million light years and has an inner ring some 5,400 LY across and an outer one which is 45,000 LY in diameter which are in resonance with one another. Both of the rings are starburst rings which are prolifically creating new stars.
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M94 - the Croc's Eye Galaxy
Chris Bowden
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