Very cool shot. Man, Looooooots of data collection time.
Interesting distribution of elements. I wonder if the Hydrogen is mostly in the distant background. The Oxygen core with Sulphur fringe seems counterintuitive to me since the sulphur is twice as heavy as the oxygen. I would have expected the sulphur in the center of this remnant.
Phil
Richard Crisp <rdcrisp@No-Spam> wrote:
tonight i finished gathering data for a tricolor version of Thor's Helmet.
I shot 45 minute exposures using an IMG6303 and AP180EDT f/9 with 0.75x telecompressor
the final count was 5 x 45 min for Ha, 5 x 45 minutes for [OIII] and 6 x 45 minutes for [SII]
All together that was 12 hours exposure
I used the wavelength ordered or so called Hubble Palette: [SII] = Red, Ha = Green and [OIII] = blue.
I recently heard Thor's Helmet called an "octopus", well this is really it.
http://www.narrowbandimaging.com/ngc2359_thor_6303_s2hao3_page.htm
"El Pulpo"
Received on Wed Mar 9 03:26:46 2005