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Date: April 28th, 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(-8.0 °C) IDAS Type Ⅲ RGB separation filter Exposure: L;2min. ×18 frames + 3min. ×12 frames R, G, B; 5min. ×3 frames each LRGB composition (total exposure time : 117min.) Image processed with StellaImage4 & The GIMP. |
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