Although we’re a bit spoiled by the 17P/Holmes outburst, 8P/Tuttle is an attractive comet with an apparent green glow. Not quite naked-eye observable, but binoculars can spot it.
I knew about where it was from the sky charts and HNSKY, so I aimed the camera at 70mm and found the green dot in the image. I zoomed in and shot the image below. 1600 ISO for 8 seconds is about as far as I can push this image. Still, the green hue is obvious in the image without enhancement.
I need to get to work on that barn-door tracker. I particularly like this approach with the bent threaded rod.
