Object: Constellation: Coordinates: Size: Brightness:
NGC 2903 Leo 09h32m / +2130' 12.6' x 5.5' 8.8mag

The barred spiral galaxy NGC 2903 in the constellation of Leo on February 25 / 26, 2014. The galaxy is about 30 million light years from Earth and was discovered by William Herschel in 1784 (source: Wikipedia).

Twenty-one 3 minute exposures at ISO 800 were added for this shot with the DeepSkyStacker software (resulting in a 1 hour 8 minutes and 33 second exposure) and the final image processing was done in Photoshop.
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).


Search chart for NGC 2903. Map © 2014 "The Mag-7 Star Atlas Project", www.siaris.net. Map is slightly modified.