Location of photoTaganrog, Russia
Date/Time of photoNov 01 and 08 2010, Nov 29 2008
EquipmentCanon 350D(self-modified,Baader's filter),
Niokkor ED 180/2.8 @ 2.8,
Astrodon 6nm H-alpha filter,
EQ6PRO mount with auto-guiding
DescriptionMosaic of 18 frames, each one is a sum of 3 x 15 min (iso800) sub-expositions. (but M42 region's frame is 8x15min). Total exposition time - 15 hours 25 min.
Frames was aligned (astrometric reduction) and re-projected using Iris software.
M42 region was HDR-composed (using unsaturated blue channel's image for nebula center)