AMATEUR
ASTRONOMY PAGES
Javier Gómez
Laina
ngc891 & Abell347 galaxy
cluster in
Andromeda
(click on the image for a larger size)
Object:
ngc891 and Abell347 galaxy cluster.
Optics:
Home made 250
f/5.4 carbon-fiber tube Newton. TV Paracorr
& IDAS LPS filter.
Camera:
Canon 350d modified (infrared filter removing)
Exposures:
31 x 400" ; 3h:27' total exposure
ISO:
800
Date:
30 Nov 2005
Mount:
Home made aluminium fork controled by Mel Bartel's design system.
Guiding:
MX716 on a 2x barlowed TV-76
Processing:
Darks & Flat calibration
SDMask combining
Dynamic Background
Extraction (sky
gradient correction)
Digital Development Processing (DDP)
Curves adjust
Lucy-Richardson deconvolution on luminance channel
LRGB combining
(grayscale image as
luminance)
Software:
ImagesPlus, PixInSight, CCDSharp,
PhotoShop.
