The planetary nebula Messier 97 (M97, "Owl nebula") in the constellation Ursa Major on
March 3/4, 2013. The Owl nebula's distance to Earth is uncertain. Depending on the source, numbers range from 400 to 12,000 light years.
Messier 97 was discovered by Pierre Méchain in 1781. Below Messier 97, a fuzzy object can be detected. It is the galaxy PGC 34279, partly eclipsed by a foreground star
(source: Wikipedia).
Eighteen 3 minute exposures at ISO 800 were added for this shot with the DeepSkyStacker software (resulting in a 55 minute exposure) and the
final image processing was done in Photoshop.
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Equipment: Canon EOS 450D Baader modified camera, TeleVue Universal Paracorr coma corrector,
16" f/4.5 "Ninja" dobsonian telescope riding on a dual-axis Tom Osypowski equatorial
platform, Lacerta MGEN autoguider, Teleskop-Service off axis system TS-OAG9 EOS (field of view comparison:
image of the moon with the same equipment).
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