I gathered the photons for this image from my driveway in the city. The Ha filter did well; the RGB's had gradients in their backgrounds from the general LP and the street light 75 feet away.
The data actually held up fairly well, so the hi rez version that you can link to I put out at a little better than 2.5 arcsec/pix. Image and details are at:
http://www.jthommes.com/Astro/rosette.htm
For those of you who would prefer to see the HA only, the link is on this page as well. (But I have to say that I did pop the small unsaturated stars a bit with the RGB composite).
Scope - FSQ-106N
Camera - ST8300M (Baader Ha RGB filters)
The data actually held up fairly well, so the hi rez version that you can link to I put out at a little better than 2.5 arcsec/pix. Image and details are at:
http://www.jthommes.com/Astro/rosette.htm
For those of you who would prefer to see the HA only, the link is on this page as well. (But I have to say that I did pop the small unsaturated stars a bit with the RGB composite).
Scope - FSQ-106N
Camera - ST8300M (Baader Ha RGB filters)
Jim Thommes
Mak-Newt 152 mm
C8
Megrez II APO
Zenithstar 66 mm APO
G11/Gemini
ST8300M
Artemis285 Camera
Canon 350D DSLR
http://jthommes.com/Astro/
