SH2-140 Emission Nebula In Cepheus by Dave Snope

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September 22, 2014	Dave Snope

SH2-140 Emission Nebula In Cepheus

Anza, CA

Sharpless 140 is a star-forming emission nebula in Cepheus, about 2900 light years from Earth.

VdB 153 is the small blue reflection nebula in the upper-left corner.

LDN 1200 is the dark nebula at center top.

North is to the right.

Sh 2-140 is part of the Cepheus Bubble, the expanding shell of gas and dust surrounding the Cep OB2 association. The bright rim is created by the B0.5 V double star HD 211880 ionising a Bok globule located within the southwest side of the LDN 1204 molecular cloud. HD 211880 is the brightest star in the 'V' of stars in the middle of the nebula.

Optic: TEC160F,Camera: STL11K,Mount: Mach1GTO
LRGB Composite.
L - 8 x 10 minutes
R - 6 x 10 minutes
G,B - 6 x 8 minutes
Ha - 1 x 30 minutes hide exif

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