Date: June 14th, 2004. 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(-3.0 °C) IDAS Type Ⅲ RGB separation filter R,G and B images were taken with 2×2 binning Exposure: L; 5min. ×34 frames R; 4min ×4frames, G, B; 3min. ×4 frames each LRGB composition (total exposure time : 210min.) Image processed with StellaImage4 & The GIMP. |