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Old 11-03-2017, 11:30 AM
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Maurice
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Join Date: Jun 2006
Location: Melbourne
Posts: 496
another ngc3132 - Ha only

Hello all

After seeing Mike's great shot of this object I almost gave up taking more data on mine....

Didn't turn out too bad. Nowhere near as deep an image as I'd hoped, but I had a couple of nights of good to very good seeing which helped the resolution (FWHM 1.6" to 1.8"). In the end the 340min stack was just on 2" due to a couple of average 2.4" nights.

Stars & background were just stretched with a slight unsharp mask. Layer masks on 3132 and DDP to tame the dynamic range. One image shows the near full frame down-sampled. The other is a central crop resampled 1.2x up from the original. Still trying to get SII & OIII.

GSO RC14 @f/8, QHY9 @ 0.38"/pixel, Baader Ha filter, ZWO 120MM + OAG, EQ8

Cheers

Maurice
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