Terry B
15-11-2007, 10:55 PM
Dear All
I noted in Skymap another comet currently in Piscis Austrinus. Skymap gives a mag of 11.8 so I thought I would try to look at it. Through the eyepiece there was absolutely nothing. Using my CCD with a luminescence filter and 2 min exposure there was nothing!
I removed the lum filter and tried unfiltered and could see a faint blob.
The attached image is a stack of 9 x 2 min unfiltered images through my VC200l with a genesis CCD. I had to stack on the stars as I couldn't determine a centre point og the comet to stack on the comet. I have labelled the mag of 2 nearby stars. These mags are GSC mags so may be off by up to 1 mag on my unfiltered images. Even so the comet is pretty dim. No where near mag 11.8. I would have thought closer to mag ~17.
At least I got an image.:P
I noted in Skymap another comet currently in Piscis Austrinus. Skymap gives a mag of 11.8 so I thought I would try to look at it. Through the eyepiece there was absolutely nothing. Using my CCD with a luminescence filter and 2 min exposure there was nothing!
I removed the lum filter and tried unfiltered and could see a faint blob.
The attached image is a stack of 9 x 2 min unfiltered images through my VC200l with a genesis CCD. I had to stack on the stars as I couldn't determine a centre point og the comet to stack on the comet. I have labelled the mag of 2 nearby stars. These mags are GSC mags so may be off by up to 1 mag on my unfiltered images. Even so the comet is pretty dim. No where near mag 11.8. I would have thought closer to mag ~17.
At least I got an image.:P