TMB92_ApogeeAlta8300U_C25_Ha_IC434_PShopFinal_09Feb12.jpg
TMB92_ApogeeAlta8300U_C25_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 TMB92SS with Mono Apogee Alta 8300U running with an Orion SteadyStar with LodeStar Guide Camera, and imaging through a Schuler 12nm Ha Filter at RA 05h 40m 31s, Dec -02d 35m 55s, Focal Length 505.9 mm and at 2.20"/Pixel Image Scale, for the wider 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.