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Date: February 16th, 2007. Location: Mito, Ibaraki, Japan. Canon 200mmF2.8L lens (diaphragm F4.0) Takahashi Sky Patrol Ⅱ(TG-SP Ⅱ) equatorial mount Canon EOS Kiss Digital (Set up to ISO800) Exposure: 1min.×20 frames (total exposure time: 20min.) Image processed with StellaImage5, Cinepaint & The GIMP. |
Classifications are referenced from “THE DEEP SKY FIELD GUIDE for Uranometria 2000.0”.
M88(NGC4501) (SA(rs)b Ⅰ-Ⅱ) NGC4571 (SA(r)d Ⅲ) IC3478 (SAB:) IC3476 (IB(s)m:) NGC4506 (SA pec?) IC3583 (IBm) M90(NGC4569) (SAB(rs)ab Ⅰ-Ⅱ) NGC4531 (SB0+:) IC3540 (S0?)