Sh2-136, The Ghosts of Cepheus

Posted by Rod Pommier
on Wednesday, September 4, 2019
Sh2-136 is a reflection nebula nicknamed the Ghosts of Cepheus. Ghostly figures appear to arise out of the nebula, which is at the edge of the Cepheus Flare molecular cloud complex. Furthermore, a protostar can be seen forming at the lower right end of the nebula. The V-shaped projection is one side of the bipolar outflow induced by the protostar's rotating accretion disk. Light from the protostar itself can be seen feebly glowing at the vertex of the V. The opposite bipolar outflow exiting the opposite side of the nebula can just be glimpsed to the left of the bright yellow star above the nebula.

Image acquisition data:
Telescope/mount: Celestron Compustar C14 with Starizona LF reducer/corrector (f/7.5)
Camera: SBIG STL 11000 with Baader Planetarium L, R, G, and B filters
SBIG AO-L adaptive optics at 8 Hz
Location: Pommier Observatory, Portland, OR, USA
Dates: 2018-09-03 through 2018-09-26
Exposures: L:R:G:B = 915:220:220:220 =26 hours 30 minutes total exposure

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