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Monday, November 17, 2008
Last night, after long cloudy period, there was three hours opening
in the clouds, so I continued the Sharpless catalog object hunting.
I managed to shot H-alpha channel for Sh2-142 object, seen
in midle of image, hence B&W version.
I'll shoot S-II and O-III channels, when weather up here allows.
I made a small mosaic with the previous targets H-alpha
channel to show Sh2-142 and Sh2-157 relative positions to each other.
(Scroll down for Sh2-1157 imaging data)
More info, about Sh2-142, can be found here:
- Filters, Baader 7nm H-alpha,
- Optics, Tokina AT-X 300mm @ f2.8
- Exposures, 5X 1200s H-alpha, + flats and bias - Guiding, LX200 GPS 12" + PHD-guiding and QHY5