TMB130_SBig4K_C28_Ha_IC434_PShopFinal_09Feb12.jpg
TMB130_SBig4K_C28_Ha_IC434_PShopFinal_09Feb12.jpg
Frankly, HorseHead is a fairly easy Target, considering how really special it is. The framing work out well this time for both a wide and narrower look at the Dark Emission Nebula.
The TMB130SS with Mono Sbig4K running dual chip mode, guided and imaged through a Baader 35nm Ha Filter at RA 05h 40m 16s, Dec -02d 34m 22s, Focal Length 906.8 mm and at 1.68"/Pixel Image Scale, for the narrower FOV image. 9x 10-minute subframes are used to build the image.
It makes life so much easier to drop back to 10-minute subframes and still pick up good quality data.