|The fantastic spiral galaxy NGC 253 (Sculptor Galaxy, Silver Coin, Silver Dollar Galaxy) in the
constellation Sculptor on October 18 / 19, 2014. The galaxy is approximately 12 million light years from Earth and was
discovered by Caroline Herschel in 1783 (source: Wikipedia).
Twenty-one 3 minute exposures at ISO 800 with no dark frame subtraction were stacked with Deep Sky Stacker (resulting in a 1 h 3 min exposure)
and further processed in Photoshop. In Switzerland, this beautiful galaxy doesn't rise more than 18 degrees above the horizon. In addition, strong winds
ruined details in the image. I might redo this bright and large galaxy one day but until then, this image will do...
|Equipment: Canon EOS 450D Baader modified camera, TeleVue Paracorr Type II coma corrector,
16" f/4.5 "Ninja" dobsonian telescope riding on a dual-axis Tom Osypowski equatorial platform,
Lacerta MGEN autoguider, Lacerta off axis system (field of view comparison:
image of the moon with the same equipment).