Merope & IC 349 (framoro)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: Barnard's Merope Nebula · IC 349 · The star Merope (23 Tau)

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Merope & IC 349

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Merope & IC 349

IC 349, also known as Barnard's Merope Nebula, is a nebula which lies 3500 AUs (0.06 LY) from the star Merope in the Pleiades cluster.
IC 349 is a cloud of interstellar gas and dust travelling through the Pleiades star cluster at a relative speed of 11 km/s, passing close to the star Merope. Analysis of the nebula's space motion indicate it does not share the velocity and direction of the Pleiades, suggesting a chance encounter between the objects. Because IC 349 shares the velocity of molecular gas in the nearby Taurus Molecular Cloud complex, it may have originated there. IC 349 is now sufficiently close to Merope that its envelope is undergoing disruption by either the star's radiation pressure, a stellar wind, or both, creating its ghostly image. The nebula will continue its approach towards Merope over the next few thousand years and will eventually move past the star, if it survives.
Morphologically, it appears to have a roughly pentagonal shape with a bright knot situated closest to Merope. This knot was examined for evidence of an embedded protostar, but none was found, even searching for emission lines characteristic of pre–Main Sequence stars that showed instead only wavelength-dependent scattering of light consistent with the presence of very fine dust particles.

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Status	Advanced failed
Started	...
Astrometry.net job	8585905
PixInsight job	YWZKQO0O64Q5SGAG8K565FCXLA2SYII7
PixInsight queue size	n/a
PixInsight stage	PLATE_SOLVING_IMAGE

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Merope & IC 349

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