SBIG ST10 E
L=4x5m 1xBin, R=5x2m, G=5x2m, B=7x2m 2xBin  Date: 17.02.02
Pollux 0.8m azimutal mounted telescope
3557mm (=140 inch) f/4.44
SBIG Filter Set provided with the CFW8
3-lens Wynne corrector
2 arc seconds
MaximDL LRGB composit, PS 5.5, CCDSharp
good seeing, bad transparency
Philipp Keller and Christian Fuchs

This galaxy in Leo is in a group together with M65 and NGC 3628. A lot of HII-regions and blue regions of young bright stars can be seen in this nice galaxy. The best images in the L-channel had 1.7", but then the seeing went a little worse. We also took the worse images to bring out the faint detail in the outer arms. Still the result is a quite high resolution image for German conditions.

a problem in an azimutal telescope is the rotation of the diffraction spikes on bright stars. Though this is only an aesthetical problem it simply does not look nice if you have fans around bright stars instead of sharp diffraction spikes. The animated gif shows the rotation of the spikes during the 4x5m L-exposure.