AMATEUR ASTRONOMY SITE
Javier Gómez Laina                                                                                     Barnard 145   &  ngc 6874  in Cygnus


Object  B145    - dark  nebula -     &    ngc6874   - open cluster -
Telescope Celestron C-8 203mm  f3.0     TeleVue 76 guide telescope & QuickCam.
CCD  Starlight MX716 CCD camera. Astronomik  RGB filters.
MOSAIC  9 frames           ( 3 width  x  3 height )
Exposures
(each frame)
L
R
G
B
30'  unfiltered   (30 x 60")  5'  (5x60") 6'  (6x60") 10'  (10x60")
Date
12  -  17   Sep   2004
Processing Flats, Darks & Bias calibration and aligning  in AIPWin. 
Combining in Ray Gralak's Sigma-Clip. 
Deconvolution in AstroArt with Robert Vanderbei's  plug-in. 
Mosaic, gradient removal and RGB combine in Maxim DL. 
PhotoShop: LRGB image.