| Object | M31, The Great Andromeda Galaxy, and its satellite galaxies, M32 & ngc205. | |||
| Telescope | Celestron C-8 203mm f3.0 TeleVue 76 guide telescope & QuickCam. | |||
| CCD | Starlight MX716 CCD camera. | |||
| MOSAIC | 28 frames ( 7 width x 4 height ) | |||
| Exposures (each frame) |
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| 32' unfiltered (32 x 60") | -- | -- | -- | |
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| 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 combining in Maxim DL. PhotoShop: Gradients removing. Jerry Lodriguss' Layer Mask method for avoiding sobre-exposure on Galaxy's core. Curves and slight unsharp mask. Noise processing in Pleiades Astrophoto's PixInsight LE. |
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