Location of photoRajamäki Finland
Date/Time of photo26-28.10.2006
EquipmentTelescope: 11" Celestron NexStar with f 6,3 foc.red.
Guiding: SBIG AO-7 working at 5 herz.
Filters: Standard RGB SBIG filters.
DescriptionThis is a dark cloud near to the great nebula of Orion M42-M43. It is not hard imagine why it`s called a Horsehead nebula. Total exposure time was 3 hours. This is a RRGB image where the lumenence channel was exposed thru RED filter.