Return to NGC 6888

A depressingly long spell of cloudy evenings at last came to an end during this fairly dismal summer we are experiencing. Now the solstice is receding the evenings are beginning to darken so a longer run of decent subs is possible again. I decided to revisit NGC 6888 (The Crescent Nebula) which is a distinctive object in the nebulous fields of Cygnus to try for a deeper image..... Wikipedia says " It is formed by the fast stellar wind from the Wolf-Rayet star WR 136 (HD 192163) colliding with and energizing the slower moving wind ejected by the star when it became a red giant around 400,000 years ago. The result of the collision is a shell and two shock waves, one moving outward and one moving inward "..... The transparency was good throughout the session. Details: 10" f4.3 Newt. 15x 10minute exposures @ iso1600 with CLS in DSS, FIV, CS2 & XAT.

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