Date: December 27th, 2002. Location: Mito, Ibaraki, Japan. SIGMA APO TELE MACRO 300mm F4.0 lens (diaphragm F5.54) 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. ×5 frames + 15min. ×1 frame R,G and B;5 min. ×2 frames each LRGB composition (total exposure time : 95min.) Image processed with StellaImage5, Cinepaint & The GIMP. |