IC 1805 - The Heart Nebula (2004)

IC 1805 - The Heart Nebula (2004)

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An earlier attempt at IC 1805, the Heart Nebula, taken in 2004 with a Takahashi FSQ-106 and SBIG STL-6303E.

Location: The Ballauer Observatory near Azle, Texas

Date: September 8, 2004

Temperature: 60 degrees F

Seeing: 8/10, steady

Transparency: 8/10

Scope/Mount: Takahashi FSQ-106 @ f/5 and Tak NJP mount

Camera: SBIG STL-6303E, self-guided

Filter: Custom Scientific 4.5nm Hydrogen-Alpha

Exposure Info: HaRGB image - 150:20:20:20 minutes (15 min. subexposures for luminance; 5 min. subexposures for RGB, binned 2x2)

Processing Info: Dark frame calibration, flat-fields, de-blooming, registration, and average combine of all channels in MaxIm 4.0. Digital development in MaxIm. Blending of final data, levels, curves, unsharp mask, despeckle, and color balance in Photoshop CS.

Extra notes: The red channel is blended 50/50 with the Ha luminance. Full luminance used on final combine. Special thanks to Three Rivers Foundation (3RF) for the use of some of the equipment used in creating this image.

About this Image

This is an earlier attempt at IC 1805, the Heart Nebula, shot two years before the 2006 image using the SBIG STL-6303E camera instead of the later STL-11000M.