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Date: October 2nd, 2002. Location: Mito, Ibaraki, Japan. SIGMA APO TELE MACRO 300mm F4.0 lens (diaphragm F4.0) Vixen GP·D equatorial mount automatically guided with D80mm f560mm refractor + ST-V BITRAN cooled CCD camera BJ-41L(-1.0 °C) IDAS Type Ⅲ RGB separation filter R,G and B images were taken with 2×2 binning Exposure: L;1min. ×1 frame + 3min. ×4 frames R,G and B;1 min. each LRGB composition (total exposure time : 16min.) Image processed with StellaImage3 & The GIMP. |
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