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.