IC1318 + NGC6888 Crescent Nebula Region in [SII], Ha and [OIII] Light

Click image to enlarge, click here for highest resolution

[SII] =Red, Ha = Green, [OIII] = Blue ("Hubble Palette")

Inverted palette (click to enlarge)

Desaturated (click to enlarge). Click here for highest resolution

Taken on June 19, 2004 from Fremont Peak State Park near San Juan Bautista, California

Takahashi FCT-76 imaging scope with Takahashi Focal reducer, f/4.5, F=376mm

SBIG ST10XME imaging camera at -26C

Astro-Physics 80/900mm guidescope with adjustable rings

SBIG ST7E guide camera at -15C

Astro-Physics AP900GTO mount

FLI DF2 Digital Focuser

FLI CFW1 Color Filter Wheel

Custom Scientific AR-Coated narrowband emission line filters (50mm unmounted)

    [SII]         673.4nm CWL, 3nm FWHM

    Ha          656.4nm CWL, 3nm FWHM

    [OIII]        500.7nm CWL, 3nm FWHM

Exposure details: 

        five exposures of 10 minutes through Ha, [OIII] and [SII] filters

Total exposure time = 2 hours 30 minutes

Hit Counter