NGC4490

(click on image to enlarge)

Taken 29 March 2002 from backyard in Castro Valley, California

LLRGB

L: 6  x 800 seconds

R=G=R= 1 x 800 sec (2x2 binned)

Equipment used: C14 with TV101 Guide scope

                                  3910mm  Focal length / f/11

                                  FLI IMG1024S Dream Machine @ -40Deg C

                                  SBIG ST7E Guide Camera

                                  Optec TCF-S Temperature Compensated focuser

                                  AP1200GTO mount