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Date: November 6th, 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(-12.0 °C) IDAS Type Ⅲ RGB separation filter R,G and B images were taken with 2×2 binning exposure: L;10min. ×3 frames + 15min. ×2 frames R,G and B;5 min. each LRGB composition (total exposure time : 75min.) Image processed with StellaImage3 & The GIMP. |
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