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Monday, November 10, 2008
Sh2-157
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjT03wEt07goT8OaF1ixkVDwz1BA1GNMfENGv_cSj0t8-ZTSP9T285p_oyzj1yZnCoYXe1Ge6OMwT3FxZ5Oj-LmDTP68vVRmnl5i64auPGkw4Pq9fDG4owjXjPfnlYOUr7F-s4_Phu8FaU/s640/Sh2-157.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEidyfbm3JDdGWIy_Bs_UAWn0j1ilIF8AHoMaIb2D7Nb1bZl_lE7w1fcahZW0yhTrifC5EyWDBtqVb9adt0PEgirSUA0oFRTYZrxxQySXMAkWkGwm_ib98nHQgdEgArgCp0v6hnyfE8WW0g/s640/Sh2-157RED.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiL1qbCy6y11XjIlkWb1HpQcev_wKGOCTvvUaIKFu0iPSdlvjSPD8XzEHz2JjVu2EmTZhHngg-K2JwaJOJH1grKX1yIPb64ZXFkE8OLLXkLh3xx6bMiwgZtQQjk3JQL9hhmE_z1HVUyjYw/s400/Sh2-157NoStars.jpg)
My Sharpless Catalog project continue with Sh2-157.
Sh2-157 is a faint large nebula. Famous Bubble Nebula can be seen in upper left corner.This nebula looks like a gigant termite head to me.
Three versions precented here, first is in a Hubble palette,
second in "natural" colors and
third is an image with reduced stars to better show nebulosity, there seems to be lots offaint double ionized Sulfur (S-II) around.
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Imaging data: Camera, QHY8 - Filters, Baader 7nm H-alpha, Baader 8,5nm O-III and Baader 8nm S-II - Optics, Tokina AT-X 300mm @ f2.8 - Exposures, 5X 1200s H-alpha, 2 X 1200 O-III and 2X1200s S-II + flats and bias - Guiding, LX200 GPS 12" + PHD-guiding and Lodestar
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