Keywords: Comet C 2006 W3 (Christensen).jpg en Comet C/2006 W3 Christensen imaged with 0 36-m Maksutov-Newtonian reflector + CCD + R filter remotely at Tzec Maun observatory near Mayhill NM U S A sum 3x60 sec 1 /pix Logarithmic intensity scale must be close to human eye's perception Own Chesnok 2009-06-25 C/2006 W3 Logarithmic intensity scale |