M16 – Emission Nebula in Sagittarius – ETX-60BB
Telescope: ETX-60BB, altaz mode, #497 controller, #884 tripod, AC power supply
DSI Pro III, low-profile face plate, IDAS LPS2 filter, 43x10sec, binned 2x2
DSI III, Orion Imaging Skyglow Filter, 33x15sec
ASIP (flats), Envisage (1.5x drizzle, 0.8 pixel fraction), Photoshop Elements
This is the first dedicated luminance/color data set taken with the ETX-60. The color data was taken on 8/27 and combined with luminance data taken on 8/28. This is a tad cumbersome and I need to work on this a bit to make it more reasonable. If nothing else back-to-back clear nights are relatively rare and I’d like to take both sets of images on the same evening. My Plan is to take my luminance images first (which is very easy), then go back and take the companion color images. The tricky bit is dealing with the field rotation between the luminance and color data sets. The Plan is to rotate the camera on the scope to at least partially compensate for the time difference between the image sets. Taking the monochrome images is very, very easy and they show much more than the color images and are much sharper. However, the lure of adding color to the monochrome images is very strong. It’s a lot of work, but the end result is very nice.