Date:January 2nd, 2003. Location: Mito, Ibaraki, Japan. Vixen R200SS 200mm Newtonian (f800mm F4.0) (with coma corrector lens for R200SS) IDAS LPS-P1 filter Vixen GP·D equatorial mount automatically guided with D80mm f560mm refractor + ST-V BITRAN cooled CCD camera BJ-41L(-18.0 °C) IDAS Type Ⅲ RGB separation filter R,G and B images were taken with 2×2 binning Exposure: L;10min. ×2 frames + 15min. × 5 frames. R,G and B;5 min. each LRGB composition (total exposure time 110min.) Image processed with StellaImage5, Cinepaint & The GIMP. |