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February Night Sky

February is a good month to see two very different nebulae, the Eskimo and the Rosette. The Eskimo Nebula, NGC 2392 is a planetary nebula in Gemini. It was discovered by Herschel, though after he had moved to Slough. Planetary nebulae have nothing to do with planets , but tend to be circular and quite bright (hence the name), and may be quite small. The Eskimo nebula certainly fits the bill, as it is about 45" across (about the same angular size as Jupiter), and has a very distinct, complex central bright area, surrounded by a fainter halo (once seen as an Eskimo face and hood). It is in fact...

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